multidisciplinary center for the development of …

MCDCM MULTIDISCIPLINARY CENTER FOR THE DEVELOPMENT OF CERAMIC MATERIALS

REPORT 4

PARTIAL REPORT OF THE MCDCM ACTIVITIES COVERING THE BASIC

RESEARCH , TECHNOLOGICAL RESULTS AND EDUCATIONAL ACTIVITIES

PERIOD FROM NOVEMBER 2003 TO MARCH 2005

MARCH 31, 2005

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REPORT (4) – MCDCM 1. Overview

This report encompasses all the activities developed in the center during this

fourth running year. This report shows that in this third year the activities of the

center were as intense as in former year for all levels, including the scientific

production, innovation activities as well as the continuous education and

dissemination of knowledge to the society. As described in this report, in the third

year the advances in the research projects was compared with former two years.

The productivity of the majority of the groups has been improved year by year,

demonstrating that the synergy of the groups by means of collaborations is the key

factor. As stated in the former report, the collaborations among members of the

center and with other researchers not belonging to the center in the national and

international level can be extracted in this report. The members of the center have

been published about 178 papers being 169 in international periodicals and about

9 in national periodicals. Considering the several research areas of the Research

Division, the number of papers per area was: Chemical synthesis = 78;

Semiconductors and Ferroelectric Materials = 54; Optical and Electrochromic

Materials = 24; Crystal Growth and Non-Crystalline Materials = 12; and Design,

Fabrication and Characterization of Microdevices Based on Magnetic and

Superconducting Thin Films = 10. Figure 1 shows the relative productivity by

research lines.

As indicated by the total number of papers, the scientific production still very

good. We can observe also that the number of papers in nanostructured materials

increased and nowadays is na important research field in the basic research

division . Besides this remarkable performance, other good results that we get

during this period were the developments of new partners. For instance we started

interaction with Prof. Michael Graetzel, from EPFL Switzerland, in the field of

nanostructured materials for solar cell technology. We start also interaction with

Prof. Michel Aegeter from INM Germany, aiming the development of

nanostructured semiconductors oxides thin films for electrochromic application. In

this period we consolidated the interaction with the Prof. Juan Andres, from Spain,

regarding theoretical study of metal oxides. The driving force for this new

international collaboration was the symposium organized in the MRS Spring

meeting of 2004 in San Francisco. In this meeting we showed that we can organize

a high level symposium and that our work in nanostructured materials is of

international level, allowed to us start this kind of interaction.

The results in the Innovation Division of the Center are growing with other

companies join to the center by means of technological research projects. We

started in this period the creation of two spin-off companies in collaboration with

former students of the center. One of this companies are related to material and

chemical characterization and the other are involved with the development of

ceramics thin films for corrosion protection and surface modification of glasses and

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stainless steel. It is important to point out also that we start projects in

nanotechnology with Brazilian (CSN) and multi-national (Faber-Castell) companies,

in order to apply ceramics nanoparticles in traditional products. The main idea

behind these projects is increase the performance of products and process using

nanoparticles

The continuous education and dissemination division of the center has increased

and diversified the numbers of activities reaching a well-established program

Many diversified activities like hosting teachers and high school students, basic

courses for craftsman located in several locations, production of educational

video, linking PhD students to industrial sector among others.

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5.21%

6.94%

13.9%

30.1%

43.9%

Chemical Synthesis

Semiconductors and Ferroelectric Mater.

Optical and Electrochromic Mater.

Crystal Growth

Design, Fabrication

Figure 1 – Relative production for the fourth year (2003-2005).

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1.2 – Team List

PRINCIPAL RESEARCHERS

NAME INSTITUTION POSITION/RESPONSIBILITY

E. LONGO UNESP Center Director

J.A. VARELA UNESP Innovation Division

A.C. HERNANDES USP - IFSC / São Carlos Continuous Education for Teachers

L.O.S. BULHÕES UFSCar Electrochromic and Optical Materials

J.B. BALDO UFSCar Refractories and Corrosion

F.M.A. MOREIRA UFSCar Superconductors and Magnetic Materials

E.C. PEREIRA UFSCar Semiconductor and Eletrochromic

E.R. LEITE UFSCar Ferroelectric Thin Films and Chemical Synthesis

V.R. MASTELARO USP / IFSC Non-Crystalline Materials and Structural Characterization.

M. CILENSE UNESP Semiconductors and Ferroelectric Materials and Electroceramic Devices

R. MUCCILLO IPEN Intragranular phenomena in Ceramic Oxides Technology: Development of Ceramic Sensors

E. MUCCILLO IPEN Intragranular phenomena in Ceramic Oxides Technology: Development of Ceramic Sensors

R. JARDIM IFUSP Magnetic Materials

M.A. ZAGHETE UNESP Powder Synthesis

C.O. PAIVA-SANTOS UNESP XRD and Rietveld Method

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SENIOR RESEARCHERS

NAME INSTITUTION SUBPROJECT

W. LIBARDI UFSCar/DEMa Vice Coordinator - Refractory Laboratory

L. A. PERAZOLLI UNESP Semiconductors

A.J.A. OLIVEIRA UFSCar Magnetic Materials

J.O.A. PASCHOAL IPEN Continuous Education for Workers and Ceramic Tiles

P.R. BUENO UNESP Nanostructured Materials for Clean Energy

JUNIOR RESEARCHERS

NAME INSTITUTION SUPERVISOR

M. ESCOTE UFSCar E. LONGO

F. I. M.COSTA UFSCar/LIEC L. O. S. BULHÕES

M.C. SANTOS UFSCar/LIEC L. O. S. BULHÕES

F. J. SANTOS UNESP J. A. VARELA

S. CARTREEDGE UNESP J.A. VARELA

M.R.B. ANDREETA USP/IFSC A.C.HERNANDES

M.I.B.BERNARDI USP/IFSC A.C.HERNANDES

C. A. CARDOSO GMD/ DF / UFSCAR F.M. ARAÚJO-MOREIRA

A. A. CAVALHEIRO UNESP E. LONGO

A. Z. SIMÕES UNESP E. LONGO

I.C. COSENTINO IPEN R.MUCCILLO

F.C. FONSECA IPEN R.MUCCILLO

H.M. VIANA IPEN R. MUCCILLO

J.S. COSTA DEMa/UFSCar J.B. BALDO

M. M. VILLULLAS LIEC/UFSCAR L.O.S. BULHÕES

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Ph.D., M.Sc. AND UNDERGRADUATE STUDENTS FORMED IN THE

FOURTH YEAR

NAME INSTITUTION ADVISOR DATE LEVEL

V.F. MONTEIRO UFSCar/LIEC E. LONGO 10/2003 PhD

F. VERNILLI UNESP J.A. VARELA 10/2003 PhD

D. Z. FLORIO IPEN R. MUCCILLO 09/2003 PhD I.T. WEBER UFSCar/LIEC E.R.LEITE 10/2003 PhD C. VILA UFSCar/LIEC E. LONGO 10/2003 M.Sc.

A. P. MACIEL UFSCar/LIEC E.R. LEITE 10/2004 PhD

M.S.C.CÂMARA UFSCar/LIEC E.LONGO 06/2004 PhD

W.K. BACELAR UFSCar/LIEC E.LONGO 03/2005 PhD

A. SPINELI USCar/LIEC E. LONGO 03/2005 PhD

M.F.GURGEL USCar/LIEC E. LONGO 03/2005 PhD

F.L. de SOUZA UFSCar/LIEC E.R. LEITE 03/2003 M.Sc.

T.R. GIRALDI UFSCar/LIEC J.A. VARELA 02/2004 M.Sc.

K.P. LOPES UFSCar/LIEC E.R. LEITE 04/2004 M.Sc.

V.C. ALBARICI UFSCar/LIEC E.LONGO 07/2004 M.Sc.

G.P. MABRINI UFSCar/LIEC E.LONGO 08/2004 M.Sc.

Ph.D. STUDENTS

NAME INSTITUTION ADVISOR

T. R.GIRALDI UFSCar/LIEC J.A. VARELA

P.R. LUCENA UFSCar/LIEC J.A. VARELA

F.L. SOUZA UFSCar/LIEC J.A. VARELA

S.H.B.S. LEAL UFSCar/LIEC E. LONGO

M. O. ORLANDI UFSCar/LIEC E. LONGO

S.R. LÁZARO UFSCar/LIEC E. LONGO

C.M. BARRADO UFSCar/LIEC E. LONGO

M. ZAMPIERI UFSCar/LIEC E. LONGO

R.C.LIMA UFSCar/LIEC E. LONGO

S.K. TADOKORO IPEN E. N. S. MUCCILLO

N. H. SAITO IPEN E. N. S. MUCCILLO

R. A. ROCHA IPEN E.N.S. MUCCILLO

D. Z. FLORIO IPEN R. MUCCILLO

I.A. SOUZA UNESP M. CILENSE

V.P.B. MARQUES UNESP M. CILENSE

R.F.C. MARQUES UNESP C.O.P.SANTOS

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A.V.C. ANDRADE UNESP C.O.P.SANTOS

N. ANSEI JUNIOR UNESP J. A. VARELA

A. H. M.GONZÁLEZ UNESP J.A. VARELA

R. T. S. OLIVEIRA JR. UFSCar/LIEC E. C. P. SOUZA

E.C. F. SOUZA UNESP J.A. VARELA

D.K.A. ALMEIDA UFSCar/LIEC J.A.VARELA

L.P.S. SANTOS UFSCar/LIEC E.R. LEITE

E. C. PARIS UFSCar/LIEC E. R.LEITE

M.R.B. ANDREETA IFSC/USP A.C. HERNANDES

A.L. MARTINEZ IFSC/USP A.C. HERNANDES

C.R. FERRARI IFSC/USP A.C. HERNANDES

C.N. SANTOS USP/IFSC A.C. HERNANDES L.J. Q. MAIA USP/IFSC V.R. MASTELARO E.R.M. ANDREETA IFSC/USP A.C. HERNANDES

C.A.C. FEITOSA IFSC/USP VALMOR R. MASTELARO

I.S.MEDEIROS USP/IFSC A. C. HERNANDES

J. S. DA COSTA UFSCar/DEMa J. B. BALDO

A. J. C. LANFREDI GMD / DF / UFSCar F.M. Araújo-Moreira

G.GASPAROTTO UNESP M. A. ZAGHETE

R.S. CONSALVES UNESP M. A. ZAGHETE

R. T. S. OLIVEIRA JR. UFSCar/LIEC E. C. PEREIRA

M. CARRIZO UFSCar/LIEC E. C. PEREIRA

F. T. STRIXINO UFSCar/LIEC E. C. PEREIRA

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M.Sc. STUDENTS

NAME Institution ADVISOR

F.C. PICON UFSCar/LIEC E. LONGO

L.G.P. SIMÕES UFSCar/LIEC E. LONGO

R. GONÇALVES UFSCar/LIEC E. LONGO

E.CAPRONI IPEN R. MUCCILLO

T.B. P.L. SOUZA LIEC/UFSCar E. C. P. SOUZA

F. T. STRIXINO UFSCar/LIEC E. C. P. SOUZA

V.C. FERNANDEZ UFSCar/LIEC L.O.S. BULHÕES

P. D. Marreto UFSCar/LIEC L. O. S. BULHÕES

K.S. FREITAS UFSCar/LIEC L.O.S. BULHÕES

F.R. DIAS IFSC/USP A. C.HERNANDES

C.N. SANTOS IFSC/USP A. C.HERNANDES

L.J.Q. MAIA IFSC/USP V. R. MASTELARO

M. R. FREITAS USP/IFSC A. C. HERNANDES

D. A. BONFIM UFSCar/DEMa W. LIBARDI

E. ANTONELLI USP/IFSC A.C. HERNANDES J. E. de SOUZA USP/IFSC A.C. HERNANDES A.J.P. SILVA UNESP C.O.P.SANTOS

V.H.S. UTUNI UNESP C.O.P.SANTOS

W. MALUF JÚNIOR GMD / DF / UFSCar F.M. ARAÚJO-MOREIRA

A.B. CAMPOS UNESP M.A. ZAGHETE

D.M.C. PEREIRA UNESP J.A. VARELA

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UNDERGRADUATE STUDENTS

R. TARARAM UNESP M. CILENSE

J. L. AMARAL UNESP M. CILENSE

R. D. ADATI UNESP M. CILENSE

S.G. ANTONIO UNESP C.O.P. SANTOS

R. PUTVINSKIS UNESP C.O.P. SANTOS

A.L. PEREIRA UNESP C.O.P. SANTOS

T. MARTINS UNESP L. A. PERAZOLI

V. VINCOLETTO UNESP L. A. PERAZOLI

E. NOLASCO UNESP J.A. VARELA

C. QUINELATO UNESP J.A. VARELA

R. L. S. Mello UFSCar/LIEC L. O. S. BULHÕES

J.CÉSAR UFSCar/LIEC L.O.S. BULHÕES

J.R. MORAES UFSCar/LIEC L.O.S. BULHÕES

D.S. CASALI UFSCar/LIEC E.C.P. SOUZA

R. F. Amado UFSCar/LIEC E.C.Pereira

B. G. Marcussi UFSCar/LIEC E.C.Pereira

M. BARROS GMD/DF/UFSCar F.M. Araújo-Moreira

D.S. FIGUEIREDO UFSCar/DEMa J. B. BALDO

M.V. L. OLIVEIRA UFSCar/DEMa J.B. BALDO UFSCar/LIEC – Universidade Federal de São Carlos – Laboratório Interdisciplinar de Eletroquímica e

Cerâmica

UNESP – Universidade Estadual Paulista/Instituto de Química – Araraquara

UFSCar/DEMa - Universidade Federal de São Carlos – Departamento de Engenharia de Materiais Educacionais IFSC/USP – Instituto de Física de São Carlos – Universidade de São Paulo – São Carlos

IPEN – Instituto de Pesquisas Energéticas e Nucleares Nucleares - Centro de Ciência e Tecnologia de Materiais

NAME INSTITUTION ADVISOR

F. H. S.RIBEIRO IPEN E.N.S. MUCCILLO

J. T. SANTOS IPEN R. MUCCILLO

F. PIMENTEL IPEN R. MUCCILLO

L. FRANCHI IPEN E.N.S. MUCCILLO

S. M. BARRIONUVEVO UNESP M.A. ZAGHETE

L.G. SILVA UNESP M.A. ZAGHETE

T. CALVO UNESP M.A. ZAGHETE

R.R.E. GOBELLO USP/IFSC A.C.HERNANDES

A. K. COLACITI USP/IFSC M.R.B. ANDREETA

GUIMARÃES, M. UFSCar/DEMa W. LIBARDI

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1.3 Results of the Research Division (Basic Research)

List of International and National Publications

1. “Dióxido de Estanho nanoestruturado : síntese e crescimento de nanocristais e

nanofitas” A. P. MACIEL, E. LONGO, E. R.LEITE, Química Nova 26 (6), 855-862 (2003).

1. “Estudo microestrutural do catalisador Ni/γ-Al2O3 – Efeito da adição de CeO2 na

reforma do metano com dióxido de carbono” A. VALENTINI, L.D. PROBST, N.L.V. CARREÑO, E.R. LEITE, F.M. PONTES, E. LONGO, W.H. SCHREINER e P.N. LISBOA-FILHO, Química Nova 26 (5), 648-654 (2003).

2. “Theoretical analysis of Water coverage on MgO(001) surfaces with defects and

without F,V and P type vacancies” A.L.ALMEIDA , J.B.L.MARTINS , E. LONGO, C.A.TAFT, J.MURGICH, F.A. JALBOUT, Journal of Molecular Structure (Theochem) 664-665, 111-124 (2003).

3. “Synthesis of metal-oxide matrix with embedded nickel nanoparticles by a

bottom-up chemical process” N.L.V. CARRENO, R.C. LIMA, L.E.B. SOLEDADE, E. LONGO, E.R. LEITE, A. BARISON, A.G. FERREIRA, A. VALENTINI, L.F.D PROBST, Journal of Nanoscience and Nanotechnology 3 (6), 516-520 (2003).

4. “Filmes finos de SrBi2Ta2O9 processados em forno microondas” J. S.

VASCONCELLOS, N.S.L.S. VASCONCELOS, S.M. ZANETTI, J.W. GOMES, E. LONGO, E.R. LEITE, J.A. VARELA, Cerâmica 49, 61-65 (2003).

5. “Glass transition temperature of heat-treate reline resins” V.M. URBAN, A.L.

MACHADO, C.E. GIAMPAOLO, A.C. PAVARINA, E.R. LEITE, Journal of Dental Research 82, 240-244 (2003).

6. “Physical properties of single-crystalline fibers of the colossal-magnetoresistance

manganite La0.7Ca0.3MnO3” C.A. CARDOSO, F.M. ARAÚJO-MOREIRA, M.R. ANDREETA, A.C. HERNANDES, E.R. LEITE, O.F. DE LIMA, A.W. MOMBRÚ, R. FACCIO, Applied Physics Letters 83 (15), 3135-3137 (2003).

7. “Structural characterization of the V2O5/TiO2 system obtained by the sol-gel

method” C.B. RODELLA, V.R. MASTELARO, Journal of Physics and Chemistry of Solids 64, 833-839 (2003).

8. “Structural Studies of a ZrO2-CeO2 doped system” V.R. MASTELARO, V. BRIOIS,

D.M.F. SOUZA, C.L. SILVA, Journal of the European Ceramic Society 23, 273-282 (2003).

9. “Evaluation of CoAl2O4 as ceramic pigments” D.M.A. MELO, J.D. CUNHA, J.D.G.

FERNANDES, M.I.B. BERNARDI, M.A.F. MELO, A.E. MARTINELLI, Materials Research Bulletin 38, 1559-1564 (2003).

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10. “Characterization of Bi4Ge3O12 single crystal by impedance spectroscopy” Z.S. MACEDO, A.L. MARTINEZ, A.C. HERNANDES, Materials Research 6 (4), 577-581 (2003).

11. “The influence of oxygen in the photoexpansion of GaGeS glasses” S.H.

MESSADDEQ, V.R. MASTELARO, M. SIU-LI, M. TABACKNIKS, D. LEZAL, A. RAMOS, Y. MESSADDEQ, Applied Surface Science 205, 143-150 (2003).

12. “Qn distribution in stoichiometric silicate glasses: thermodynamic calculations and

29Si high resolution NMR measurements” J. SCHNEIDER, V.R. MASTELARO, E.D. ZANOTTO, B.A. SHAKHMATKIN, N.M. VEDISHCHEVA, A.C. WRIGHT, H. PANEPUCCI, Journal of Non-Crystalline Solids 325, 164-178 (2003).

13. “Evaluation of hair fiber hydration by differential scanning calorimetry, gas

chromatography, and analysis” K.M.S BELLETTI, I.H. FERFERMAN, T.R.O MENDES, A.D. PIACESKI, V.F. MONTEIRO, N.L.V. CARRENO, A. VALENTINI, E.R.LEITE, E. LONGO, Journal of Cosmetic Science 54 (6), 527-535 (2003).

14. “Structure Study of Donor Doped Barium Titanate Prepared from Citrate Solutions”

B.D. STOJANOVIC, V.R. MASTELARO, C.O.PAIVA-SANTOS, J.A. VARELA, Science of Sintering 36, 179-188 (2004).

15. “Study of k and LiNbO3 addition on the final properties of the relaxor pmn

processed by powder blend” A.A. CAVALHEIRO, M.A. ZAGHETE, M. CILENSE, M. VILLEGAS, J.F. FERNANDEZ, J.A. VARELA, Boletin de la Sociedad Espanhola de CerAmica y Vidrio 43(3), 653-657 (2004).

16. “Sintering of tin oxide using zinc oxide as a densification aid” C. R. FOSCHINI, L. PERAZOLLI, J. A. VAREL, Journal of Materials Science 39(8), 5825-5830 (2004).

17. “Effect of thermal treatment temperature on the crystallinity and morphology of

LiTaO3 thin films prepared from polymeric precursor method” A. H. M. GONZÁLEZ, A. Z. SIMOES, M. A. ZAGHETE, E. LONGO, J. A. VARELA, Journal of Electroceramics 13(1-3), 353-359 (2004).

18. “Influence of Ta2O5 on the electrical properties of ZnO- and CoO-doped SnO2

varistors” F. M. FILHO, A. Z. SIMOES, A. RIES, I. P. SILVA, L. PERAZOLLI, E. LONGO, J. A. VARELA, Ceramics International 30 (8), 2277-2281 (2004).

19. “Electrical properties of screen printed BaTiO3 thick film” B. D. STOJANOVIC, C. R.

FOSCHINI, V. Z. PEJOVIC, V. B. PAVLOVIC, J. A. VARELA, Journal of the European Ceramic Society 24, 1467-1471 (2004).

20. “Phase formation and characterization of BaBi2Ta2O9 obtained by mixed oxide

procedure” G. C. C. DA COSTA, A. Z. SIMÕES, A. RIES, C. R. FOSCHINI, M. A. ZAGHETE, J. A. VARELA, Materials Letters 58, 1709-1714 (2004).

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21. “The role of network modifiers in the production of photoluminescence in CaWO4” F. R. C. CIACO, F. M. PONTES, C. D. PINHEIRO, E. R. LEITE, S. R. DE LAZARO, J. A. VARELA, P. S. PIZANI, C. A. PASKOCIMAS, A. G. SOUZA, E. LONGO, Cerâmica 50 (313), 43-49 (2004).

22. “Microstructural investigation of the PZT films prepared from the suspension of

nanocrystalline powders” Z. BRANKOVIC, G. BRANKOVIC, J. A. VARELA, Journal of the European Ceramic Society 24, 1945-1948 (2004).

23. “Structural effects of Li and K additives on the columbite precursor and 0.9PMN-

0.1PT powders” J. C. BRUNO, A. A. CAVALHEIRO, M. A. ZAGHETE, M. CILENSE, J. A. VARELA, Materials Chemistry and Physics 84 (1), 120-125 (2004).

24. “Effect of PbO excess on the formation of lead magnesium niobate perovskite by

the columbite method” A. A. CAVALHEIRO, S. M. BARRIONUEVO, J. C. BRUNO, M. A. ZAGHETE, M. CILENSE, J. A. VARELA, Materials Chemistry and Physics 84 (1), 107-111 (2004).

25. “Influence of oxygen atmosphere on crystallization and properties of LiNbO3 thin

films” A. Z. SIMÕES, M. A. ZAGHETE, B. D. STOJANOVIC, A. H. M. GONZÁLEZ, C. S. RICCARDI, M. CANTONI, J. A. VARELA, Journal of the European Ceramic Society 24 (6), 1607-1613 (2004).

26. “Potassium niobate thin films prepared through polymeric precursor method” A. Z.

SIMÕES, A. RIES, C. S. RICCARDI, A. H. M. GONZÁLEZ, M. A. ZAGHETE, B. D. STOJANOVIC, M. CILENSE, J. A. VARELA, Materials Letters 58 (20), 2537-2540 (2004).

27. “Influence of the common varistor dopants (CoO, Cr2O3 and Nb2O5) on the

structural properties of SnO2 ceramics” G. BRANKOVIC, Z. BRANKOVIC, M. R. DAVOLOS, M. CILENSE, J. A. VARELA, Materials Characterization 52 (5), 243-251 (2004).

28. “Dielectric and piezoelectric properties of the mechanochemically prepared PZT

ceramics” Z. BRANKOVIC, G. BRANKOVIC, F. MOURA, J. A. VARELA, Journal of Materials Science 39 (16-17), 5291-5294 (2004).

29. “Influence of nonuniform critical current density profile on magnetic field behavior

of AC susceptibility in 2D Josephon juntion arrays” F.M. ARAUJO-MOREIRA, W. MALUF, S. SERGEENKOV, Solid State Communications 131, 759-762 (2004).

30. “Nanocrystals Assembled from the Bottom Up” E. R. LEITE, Encyclopedia of

Nanoscience and Nanotechnology, Edited by H.S.Nalwa , 6 537-554 (2004). 31. “Análise teórica da interação de CO, CO2, e NH3 com ZnO” J.B.L. MARTINS, J.R.

SAMBRANO, L.A.S. VASCONCELLOS, E. LONGO, C.A. TAFT, Química Nova 27 (1), 10-16 (2004).

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32. “Epitaxial growth of LiNbO3 thin films in a microwave oven” N.S.L.S. VASCONCELLOS, J.S. VASCONCELLOS, V. BOUQUET, S.M. ZANETTI, E.R. LEITE, E. LONGO, L.E.B.. SOLEDADE, F.M. PONTES, M. GUILLOUX-VIRY, A PERRIN, M.I. BERNARDI, J.A. VARELA, Thin Solid Films 436, 213-219 (2004).

33. “Thermal transformations of tile clay before and after kaolin addition” F.R.

ALBUQUERQUE, B. PARENTE, S.J.G. LIMA, C.A. PASKOCIMAS, E. LONGO, A.G. SOUZA, I.M.G. SANTOS, M. FERNANDES, Journal of Thermal Analysis and Calorimetry 75, 677-685 (2004).

34. “SrBi2Nb2O9 thin films crystallized using a low power microwave oven” S.M.

ZANETTI, J.S. VASCONCELLOS, N.S.L.S VASCONCELOS, E.R. LEITE, J.A. VARELA, Journal of the European Ceramic Society 24, 1597-1602 (2004).

35. “Strontium titanate films prepared by spray pyrolysis” G. BRANKOVIC, Z.

BRANKOVIC, J.A. VARELA, E. LONGO, Journal o the European Ceramic Society 24, 989-991 (2004).

36. “Synthesis and Characterization of the β-BaB2O4 Phase Obtained by the

Polymeric Precursor Method” P.P. NEVES, L.J.Q.MAIA, M.I.B. BERNARDI, A.R. ZANATTA, S.M. ZANETTI, E. R. LEITE, Journal of Sol-Gel Science and Technology 29, 89-96 (2004).

37. “A DFT rationalization of the room temperature photoluminescence of Li2TiSiO5” E.

LONGO, E. ORHAN, V.C. ALBARICII, M T. ESCOTE, Chemical Physics 398 (4), 330-335 (2004).

38. “A Raman and dielectric study of a diffuse phase transition in (Pb1xCax)TiO3 thin

films” E. LONGO, F.M.L.PONTES, D.S.L. PONTES, E.R. LEITE, A.J. CHIQUITO, M.A.C MACHADO; P.S. PIZANNI, J.A. VARELA, Applied Physics A 78, 349-354 (2004).

39. “A simple and novel method to synthesize doped and unoped SnO2 nanocrystals

at room temperature” E. LONGO, E.R. LEITE, E.J.H. LEE, T.R. GIRALDI, Journal of Nanoscience and Nanotechnology 4 (7), 774-778 (2004).

40. “An investigation of metal oxides which are photoluminescence at room

temperature” E. LONGO, E.R.LEITE, F. M. L. PONTES, E.LEE, J H; R. AGUIAR, D. S. L. PONTES, M.S.J. NUNES, P.S. PIZANI, F LANCIOTTI JR, T M BOSCHI, J. A VARELA, C. A. PASKOCIMAS, C. D PINHEIRO, C. A TAFT, Journal of Molecular Structure (Theochem) 668, 87-91 (2004).

41. “Development of SnO2/Sb-Based Ceramic Pigments” M.I.B.BERNARDI, E.R. LEITE, E.

LONGO, M.M. CONCEIÇÃO, A.G. SOUZA, Journal o Thermal Analysis and Calorimetry 75, 481-486 (2004).

14

42. “Characterization of BaTi1-xZrxO3 thin films obtined by a soft chemical spin-coating techinique” E. LONGO, F. M. PONTES, M.T. ESCOTE, C.C. ESCUDEIRO, E.R. LEITE, Journal of Applied Physics 96 (8), 4386-4391 (2004).

43. “Characterization of lanthanum-doped bismuth titanate thin films prepared by

polymeric precursor method” E. Longo, A.Z. Simoes; C.S. Riccardi, F. Moura, Materials Letters 58(22-23), 2842-2847 (2004).

44. “Combined experimental and theoretical study to undestand the

photoluminescence of Sr1-xTiO3-x”E. LONGO, E. ORHAN, F.M. PONTES, M.A. SANTOS, Journal of Physical Chemistry B 108(26), 9221-9227 (2004).

45. “Combined wet-chemical process to synthesize 65PMN-35PT nanosized powders”

E.LONGO, L.P.S. SANTOS, E.R. LEITE, E. R. CAMARGO, Journal of Alloys and Compounds 372 (1-2), 111-115 (2004).

46. “Composition and electronic structure of Zn7-xMxSb2O12 (M=Ni and Co) spinel

Compounds” E.LONGO, P.N. LISBOA, C.VILA, M. S. GOES, C. MORILLA SANTOS, L.GAMA, W.H. SCHREINER, C.O. PAIVA SANTOS, Materials Chemistry And Physics 85 (2-3), 377-382 (2004).

47. “Density functionall theory calculation of the electronic structure of

Ba0.5Sr0.5TiO3: Photoluminescent properties and structural disorder” E. LONGO, E. ORHAN, F. M. PONTES, C. D. PINHEIRO, E. R. LEITE, J. A. VARELA, P. S. BOSCHI, F. LANCIOTTI, A. BELTRAN, J. ANDRES, Journal Physical Review B 69, 12 (2004).

48. “Efeito do Pr2O3 nas propriedades elétricas de varistores a base de SnO2” E

LONGO, L G P SIMÕES, M.O. ORLANDI, A. L. ARAÚJO, M.R.D BOMIO, E.R. LEITE, J.A. VARELA, Cerâmica 49, 232-236 (2004).

49. “Effect of atmosphere on the electrical properties of TiO2-SnO2 varistor systems”

E.LONGO, V. S. SOUSA, M.R. CASSIA-SANTOS, C.M. BARRADO, Journal of Materials Science-Materials In Electronics 10, 665-669 (2004).

50. “Effect of heat flux direction on electrical properties of SrNi2Nb2O9 thin films

crystallized using a microwave oven” E.LONGO, J.VASCONCELOS, N. S. VASCONCELOS, S.M. ZANETTI, E.R. LEITE, J.A. VARELA, Applied Surface Science 225, 156-161 (2004).

51. “Effects of post-annealing on the dielectric properties o Au/BaTiO3/Pt thin film

capacitors”. E LONGO, E.J.J. LEE, F.M. PONTES; E.R. LEITE, Materials Letters 58(11), 1715-1721 (2004).

52. “Electrical characterization of lanthanum-modified bismuth titanate thin films

obtained by the polymeric precursor method” E.LONGO, S.Z. SIMOES, B.D. STOJANOVIC, M.A. ZAGHETE, Integrated Ferroelectrics 60, 21-31 (2004).

15

53. “Enhanced electrical property of nanostructured Sb-doped SnO2 thin film processed by soft chemical method” E.LONGO, E.R. LEITE, M.I.B. BERNARDI, J.A. VARELA, C.A. PASKOCIMAS, Thin Solid Films 449, 67-72 (2004).

54. “Fatigue-free behavior of Bi3.25La0.75TiO3O12 thin films grown on several bottom

eletrodes by the polymeric precursor method” E. LONGO, A.Z. SIMOES, F. M. FILHO, Applied Physics Letters 85(24), 5962-5964 (2004).

55. “Ferroelectric phase transition in Pb0.060Sr0.40TiO3 thin films” E.LONGO, S.H.

LEAL, F.M. PONTES, E. R. LEITE, Materials Chemistry and Physics 87, 353-356 (2004).

56. “High oxygen-pressure annealing effects on the ferroelectric and structural

properties of PbZr0.3Ti0.73 thin films” E.LONGO, M.T. ESCOTE, F.M. PONTES, E.R. LEITE, Journal of Applied Physics 96 (4), 2186-2191 (2004).

57. “Improved activity and stability of Ce-promote Ni/gamma-Al2O3 catalysts for

carbon dioxide reforming of methane” E.LONGO, A .VALENTINI, N.L. V. CARRENO, E. R. LEITE, R. F. GONÇALVES, L.E. B. SOLEDADE, Y.MANIETTE, L.F.D. PROBST, Latin American Applied Research 34 (3), 165-172 (2004).

58. “Influence of noble metals on the structural and catalitic properties of Ce-doped

SnO2 systems” E LONGO, I.T. WEBER, A. VALENTINI, L.F.D. PROBST, E.R. LEITE, Sensors And Actuators B-Chemical 97, 31-38 (2004).

59. “Influence of strontium concentration on the structural, morphological and

electrical properties of lead zirconate titanate thin films” E. LONGO, C.E. F. COSTA, F.M. PONTES, A.G. SOUZA; E.R. LEITE, Applied Physics A 79 (3), 593-597 (2004).

60. “Investigation of phase transition in ferroelectric Pb0.70 Sr0.30 TiO3 thin films” E.

LONGO, F. M. PONTES, S.H. LEAL, E.R. LEITE, P.PIZANI, P.S. CHIQUITO, J.A.VARELA, Journal of Applied Physics 96(2), 1192-1196 (2004).

61. “Low temperature crystallization of SrBi2Ta2O9 thin films using microwave oven” E.

LONGO, S.M. ZANETTI, J.S. VASCONCELLES, N.S.L.S. VASCONCELOS, Thin Solid Films 466 (1-2), 62-68 (2004).

62. “Low-temperature synthesis of single-phase Co7Sb2O12” E.LONGO, M.S.L. BRITO, M

.T. ESCOTE, C. O. P. SANTOS, Materials Chemistry And Physics 88 (2), 404-409 (2004).

63. “Microstructural and optical characterization of CaWO4 and SrWO4 thin films

prepared by a chemical solution method” E. LONGO, M. A. M. A. MAURERA, A. G. SOUZA, L. E. B. SOLEDADE, F. M. PONTES, E. R. LEITE, J.A. VARELA, Materials Letters 58, 727-732 (2004).

16

64. “Nonlinear behavior of TiO2 center dot Ta2O5 center dot MnO2 material doped with BaO and Bi2O3” E. LONGO, V. C. SOUSA, E. R. LEITE, Materials Chemistry And Physics 85 (1), 96-103 (2004).

65. “Nonohmic behavior ofSnO2-MnO polycrystalline ceramics I. Correlations

between microstructural morphology and nonohmic Features” E. LONGO, P. R. BUENO, M. O. ORLANDI, L. G. P. SIMOES, E. R. LEITE, Journal of Applied Physics 96(5), 2693-2700 (2004)

66. “On the stabilizing behavior of zirconia: A combined experimental and theoretical

study” E. LONGO, C.R. FOSCHINI, O. TREU, S. A. JUIZ, A. G. SOUZA, J. B. L. OLIVEIRA, E.R. LEITE, C.A. PASKOCIMAS, J.A. VARELA, Journal of Materials Science 39 (6), 1935-1941(2004).

67. “Origin of photo luminescence in SrTiO3: a combined experimental and

theoretical study” E. LONGO, E. ORHAN, F. M. PONTES, C. D. PINHEIRO, Journal of Solid State Chemistry 177 (11), 3879-3885 (2004).

68. “Phase evolution of lead titanate from its amorphous precursor synthesized by the

OPM wet-chemical route” E. LONGO, E. R. CAMARGO, E. R. LEITE, V. R. MASTELARO, Journal of Solid State Chemistry 177 (6), 1994-2001 (2004).

69. “Photoluminescence in amorphous zirconium titanate” E. LONGO, G.F.G FREITAS,

L.E.B. SOLEDADE, E.R. LEITE, P.S. PIZANNI, T. M. BOSCHI, C.A. PASKOCIMAS, J.A. VARELA, D.M. MELO, M. CERQUEIRA, R.M. MAGNANI, Applied Physics A 78, 355-358 (2004).

70. “Photoluminescence in quantum-confied SnO2 nanocrystals: Evidence of free

exciton decay” E. LONGO, E.J.H. LEE, C. RIBEIRO, T.R. GIRALDI, E.R. LEITE, Applied Physics Letters 84 (9), 1-6 (2004).

71. “Photoluminescence of the PbTiO3 in amorphous state analyzed by method ab-

initio periodicy” E. LONGO, S. R. LAZARO, E. R. LEITE, A. BELTRAN, Journal Of Microscopy-Oxford 43 (3), 644-648 (2004).

72. “Preparation of Pb(Zr,Ti)O-3 thin films by soft chemical route 2004” E. Longo, F. M.

Pontes, E. R. Leite, M. S. J. Nunes, Journal of the European Ceramic Society, 24 (10-11) 2969-2976 (2004).

73. ”Processing effects on nanometric rare earth-doped tin oxides on the synthesis of

methyl vinyl ketone“ E. LONGO, A.P. MACIEL, N.L.V. CARREÑO, P.R. LUCENA, E.R. LEITE, H.V. FARJADO, A. VALENTINI, L.F.D. PROBST, Reaction Kinetics and Catalysis Letters 81(2), 211-217 (2004).

74. “Quantitative analysis and classification of AFM images of human hair” E. Longo,

S. P. Gurdem, V. F. Monteiro, M. M. C. Ferreira, Journal of Microscopy-Oxford 215, 13-23 (2004).

17

75. “Room temperature photoluminescence of amorphous BaxSr1-xTiO3 doped with chromium” E. LONGO, D. M. A. MELO, A. CESAR, A. E. MARTINELLI, Journal of Solid State Chemistry 177 (3), 670-674 (2004).

76. “Selective synthesis of vinyl ketone over SnO2 nanoparticle catalysts doped with

rare earths” E. LONGO, N.L.V. CARREÑO, H.V. FARJADO, A.P. MACIEL, A. VALENTINI, F.M.L. PONTES, L.F.D. PROBST, E.R. LEITE, Journal of Molecular Catalysis A-Chemical 207, 91-96 (2004).

77. “Sintering mechanisms of ZrO2 center dot MgO with addition o TiO2 and CuO” E.

LONGO, R. S. NASAR, M. CERQUEIRA, J. A. VARELA, Ceramics International 30(4), 571-577(2004).

78. “Sol -gel nonhydrolytic synthesis of a hybrid organic-inorganic electrolyte for

application in lithium-ion devices” E. LONGO, F. L. SOUZA, P. R. BUENO, E. R. LEITE, Solid State Ionics 166 (1-2), 83-88 (2004).

79. “SrBi2Ta2O9 ferroelectric thick films prepared by electrophoretic deposition using

aqueous suspension” E. LONGO, S. M. ZANETTI, J. A. VARELA, E. R. LEITE, Journal of the European Ceramic Society 24 (8), 2445-2451 (2004).

80. “Structural and electronic properties of PbTiO3 slabs: a DFT periodic study” E.

LONGO, S.L. LAZARO, J.R. SAMBRANO, A. BELTRÁN, Surface Science 552, 149-159 (2004).

81. “Study of synthesis variables in the nanocrystals growth behaviour of tin oxide

processed by controlled hydrolysis” E. LONGO, C. RIBEIRO, E. J. H. LEE, T. R. GIRALDI, Journal of Physical Chemistry B 108 (40), 15612-15617 (2004).

82. “Synthesis and characterization of Al2O3/Cr2O3-based ceramic pigments” E.

LONGO, M.I.B. BERNARDI, S. C. CRISPIM, L. A. P. MACIEL, A. G. SOUZA, M. M. CONCEIÇÃO, E. R. LEITE, Journal of Thermal Analysis and Calorimetry 75, 475-480 (2004).

83. “Synthesis and characterization of spinel pigment CaFe2O4 obtained by the

polymeric precursor method” E. Longo, R. A. Candeia, M. I. B. Bernardi, I. M. G. Santos, A. G. Souza, Materials Letters, 58, 569-572 (2004).

84. “Synthesis and thermal characterization of zirconium titanate Pigments” E.

LONGO, C. E. F. COSTA, S. C. L. CRISPIM, S. J. G. LIMA, C. A. PASKOCIMAS, V. J. FERNANDES, A. S. ARAÚJO, I. M. G. SANTOS, A. G. SOUZA, Journal of Thermal Analysis and Calorimetry 75, 467-473 (2004).

85. “Synthesis of nanocrystalline ytterbium modified PbTiO3” E. LONGO, F. C. D.

LEMOS, E. R. LEITE, D. M. A. MELO, A. O. SILVA, Journal of Solid State Chemistry 177, 1542-1548 (2004).

18

86. “Improvement of the dielectric and ferroelectric properties in superlattice structure o Pb(Zr,Ti)O3 thin films grown by a chemical solution route” F.M. PONTES, E LONGO, E.R. LEITE, J.A. VARELA, Applied Physics Letters 84 (26), 5470-5476 (2004).

87. ”Synthesis of ZrO2-based ceramic pigments” E. LONGO, C.S. XAVIER, C. E. F. COSTA, S. C. L. CRISPIM, M. I. B. BERNARDI, M. A. M. A. MAURERA, M. M. CONCEIÇÃO, A. G. SOUZA, Journal of Thermal Analysis and Calorimetry 75, 461-466, (2004).

88. “The effect of Nb doping on ferroelectric properties of PZT thin films prepared from

polymeric precursors” E. LONGO, E C F SOUZA, A Z SIMOES, M. CILENSE, Materials Chemistry and Physics 88 (1), 155-159 (2004).

89. “The influence of crystallization route on the properties of lanthanum-doped

Bi4Ti3O12 thin films” E. LONGO, A. Z. SIMOES, C. S. RICCARDI, C. QUINELATO, Materials Science and Engineering B-Solid State Materials for Advanced Technology 113 (3), 207-214 (2004).

90. “Theoretical analysis of the interaction of Co, Co-2, and Nh(3), with ZnO” E.

LONGO, J. B. L. MARTINS, J. R. SAMBRANO, L. A. S. VASCONCELLOS, Química Nova 27 (1), 10-16 (2004).

91. “Thermal study of CoxZn7-xSb2O12 Spinel obtained by pechini method using

different alcohols” E. LONGO, D. S. GOUVEIA, R. ROSENHAIM, M. A. M. A. MAURERA, S. J. G. LIMA, C. A. PASKOCIMAS, E. LONGO, A. G. SOUZA, I. M. G. SANTOS, Journal of Thermal Analysis and Calorimetry 75, 453-460 (2004).

92. “Very large dielectric costant of highly oriented Pb1-xBaxTiO3 thin films prepared

by chemical deposition” E. LONGO, F. M. PONTES, E. R. LEITE, G. P. MAMBRINI, M. T. ESCOTE, J. A. VARELA, Applied Physics Letters 84 (2), 248-250 (2004).

93. “Ferroelectric and dielectric properties of lanthanum-modified bismuth titanate

thin films obtained by the polymeric precursor method” A.Z. SIMOES, A.H.M. GONZALEZ, C.S. RICCARDI, Journal of Electroceramics 13 (1-3), 65-70 (2004).

94. “Effect of thickness on the Electrical and Optical Propertis of Sb Doped SnO2

(ATO) Thin Films” T.R. GIRALDI, M. T. ESCOTE, M.I.B. BERNARDI, V. BOUQUET, E.R. LEITE, E. LONGO, J.A. VARELA, Journal of Electroceramics 13, 159-165 (2004).

95. “Extrinsic properties of colossal magnetoresistive samples” P. N. Lisboa Filho, A.

W. Mombru, H. Pardo, E. R. Leite, W.A. Ortiz, Solid State Communications 130, 31-36 (2004).

19

96. “Structural analysis of pure and LiCF3 SO3-doped amorphous WO3 electrochromic films and discussion on coloration kinetics” P.R. BUENO, F. M. PONTES, E. R. LEITE, L.O.S. BULHOES, P.S. PIZANI, P.N. LISBOA-FILHO, W.H. SCHREINER, Journal of Applied Physics 96 (4), 2102-2106 (2004).

97. “Análise teórica da interação de CO, CO2 e NH3 com ZnO” J.B.L. MARTINS, J.R.

SAMBRANO, L.A.S. VASCONCELLOS, E. LONGO, C.A. TAFT, Química Nova 27 (1), 10-16 (2004).

98. “Qualitative measurement of residual in carbon in wet-chemically synthesize

powders” E.R. CAMARGO, E. LONGO, E.R. LEITE, M. KAKIHAMA, Ceramics International 30, 2235-2239 (2004).

99. “Synthesis of Ni nanoparticles in microporous and mesoporous Al and Mg oxides”

A. VALENTINI, N.L. CARREÑO, L.F.D. PROBST, E.R. LEITE, E. LONGO, Microporous and Mesoporous Materials 68, 151-157 (2004).

100. "Materiais cerâmicos para células a combustível" D. Z. DE FLORIO, F. C. FONSECA,

E. N. S. MUCCILLO, R. MUCCILLO Cerâmica 50, 316, 275-290 (2004).

101. "Lattice parameters of yttria-doped ceria solid electrolytes" J. F. Q. REY, E. N. S. MUCCILLO, Journal European Ceramic Society 24 (6) 1287-1290 (2004).

102. "Impedance spectroscopy analysis of percolation in (yttria-stabilized zirconia) -

yttria ceramic composites" F. C. FONSECA, R. MUCCILLO, Solid State Ionics 166 (1-2), 157-165 (2004).

103. "Synthesis by the polymeric precursor technique of Bi2Co0.1V0.9O5.35 and electrical

properties dependence on the crystallite size" C. H. HERVOCHES, M. C. STEIL, R. MUCCILLO, Solid State Sciences 6(2), 173-177 (2004).

104. "Transport properties of La0.6Y0.1Ca0.3MnO3 compounds with different interfaces" F.

C. FONSECA, J. A. SOUZA, R. F. JARDIM, R. MUCCILLO, E. N. S. MUCCILLO, D. GOUVÊA, M. H. JUNG, A. H. LACERDA, Journal European Ceramic Society 24, 1271-1275 (2004).

105. "Synthesis, sintering and impedance spectroscopy of 8 mol% yttria-doped ceria

solid electrolyte", S. K. TADOKORO, T. C. PORFÍRIO, R. MUCCILLO, E. N. S. MUCCILLO, Journal Power Sources 130, 15–21 (2004).

106. "Effect of boron oxide on the cubic-to-monoclinic phase transition in yttria-

stabilized zirconia" D. Z. FLORIO, R. MUCCILLO, Material Res. Bulletin 39, 1539-1548 (2004).

107. "Physical characteristics and sintering behavior of MgO-doped ZrO2 nanoparticles", E. N. S. MUCCILLO, S. K. TADOKORO, R. MUCCILLO, Journal Nanoparticle Research 6, 301–305 (2004).

20

108. "Elastic modulus of porous Ce-TZP ceramics" F. F. C. P LIMA, A. L. E. GODOY, E. N. S. MUCCILLO, Materials Letters 58 (1-2), 172-175 (2004).

109. "Utilização de rejeitos de pilha zinco-carvão em argamassas e concretos de cimento Portland" M. A. COIMBRA, W. LIBARDI, M.R. MORELLI, Cerâmica 50 (316), 300-307 (2004).

110. "Evaluation of Industrial Residues in Concrete for Civil Construction" M. A.

COIMBRA; W. LIBARDI, M.R. MORELLI, American Ceramic Society Bulletin 9401-9406 (2004).

111. "Desenvolvimento de Resíduo Pozolânico da Indústria Cerâmica" M. A.

COIMBRA, W. LIBARDI, M.R. MORELLI, Revista do Instituto de Ciência e Tecnologia em Resíduos e Desenvolvimento Sustentável ( 2004).

112. “β-BaB2O4 nanometric powder obtained from the ternary BaO-B2O3-TiO2 system

using the polymeric precursor method” L.J.Q. MAIA, M.I.B. BERNARDI, A.C. ZANATTA, A.C. HERNANDES and V.R. MASTELARO, Materials Science and Engineering B107, 33-38 (2004).

113. “Dielectric and ferroelectric properties of Bi4Ti3O12 ceramics produced by a laser

sintering method” Z.S. MACEDO, M. LENTE, J. EIRAS AND A.C. HERNANDES, Journal of Physics Condensed Matter 16, 2811-2818 (2004).

114. “Growth and characterization of Nd-doped SBN single crystal fibers” J.J.

ROMERO, M.R.B. ANDREETA, E.R.M. ANDREETA, L.E. BAUSÁ, A.C.HERNANDES, J.G. SOLÉ, Applied Physics A 78 (7), 1037-1042 (2004).

115. “Impedance spectroscopy of Bi4Ti3O12 ceramic produced by self-propagating

high-temperature synthesis technique” Z.S. MACEDO, C.R. FERRARI, A.C. HERNANDES, Journal of the European Ceramic Society 24, 2567-2574 (2004).

116. “Laser heated pedestal growth and optical characterization of CaTa2O6 single

crystal fiber”, C.R. FERRARI, A.S.S. DE CAMARGO, L.A.O. NUNES, A.C.HERNANDES, Journal of Crystal Growth 266, 475-480 (2004).

117. “Laser-sintered bismuth germanate ceramics as scintillator devices”, Z.S.

MACEDO, R.S. SILVA, M.E.G. VALÉRIO, A. L. MARTINEZ, A. C. HERNANDES, Journal of the American Ceramic Society 87 (6), 1076-1081 (2004).

118. “Multiwavelength laser action of Nd3+:YalO3 single crystals grown by the laser heated pedestal growth method”, J.J. ROMERO, E. MONTOYA, L.E. BAUSÁ, F. AGULLÓ-RUEDA, M.R.B. ANDREETA, A.C. HERNANDES, Optical Materials 24, 643-650 (2004).

21

119. “Preparation of composites of topaz embedded in glass matrix for applications in solid state thermoluminescence dosimetry” C.M.S. DE MAGALHÃES, Z.S. MACEDO, M.E.G. VALERIO, A.C. HERNANDES, D.N. SOUZA, Nuclear Instruments and Methods in Physics Research B 218, 277-282 (2004).

120. “Radiation detectors based on laser sintered Bi4Ge3O12 ceramics” Z.S. MACEDO,

R.S. SILVA, M.E.G. VALÉRIO, A.C. HERNANDES, Nuclear Instruments and Methods in Physics Research B 218, 153-157 (2004).

121. “Self-propagation high-temperature synthesis of bismuth titanate”, Z.S. MACEDO,

C.R. FERRARI, A.C. HERNANDES, Powder Technology 139, 175-179 (2004).

122. “Spectral Imaging for visualization of distribution of Nd3+ ions in CaTaO6 fibre”, S.K. MENDIRATTA, J. CASCALHEIRA, C.R. FERRARI, A.C. HERNANDES, Materials Science Forum 455-456, 665-668 (2004).

123. “Synthesis and characterization of beta barium borate thin films obtained from

the BaO-B2O3-TiO2 ternary system” L.J.Q. MAIA, M.I.B. BERNARDI, C.A.C. FEITOSA, V.R. MASTELARO, A.R. ZANATTA, A.C.HERNANDES, Thin Solid Films 457, 246-252 (2004).

124. “Structural and optical characterization of beta barium borate thin films grown by

electron beam evaporation” V.R. MASTELARO, A.C. HERNANDES, L.J.Q. MAIA, C.A.C. FEITOSA, M. SIU-LI, F.S. VICENTE, Journal of Vacuum Science and Technology A 22, (5), 1-5 (2004).

125. “Synthesis and Characterization of the β-BaB2O4 phase obtained by the polymeric

precursor method” P.P. NEVES, L.J.Q. MAIA, M.I.B. BERNARDI, A.C. ZANATTA, V.R. MASTELARO, S.M. ZANETTI AND E.R. LEITE, Journal of Sol-Gel Science and Technology 29, 89-96 (2004).

126. “Structural and spectroscopic characteristics of neodymium doped CaTaO6

single crystal fibres grown by the laser heated pedestal growth technique”, A.S.S. DE CAMARGO, C.R. FERRARI, A.C. HERNANDES, L.A.O. NUNES, Journal of Physics-Condensed Matter 16(32), 5915-5923 (2004).

127. “Synthesis and crystal growth of sillenite phases in the Bi2O3-TiO2-Nb2O5 system”

T.O. DOS SANTOS, J.F. CARVALHO, A.C. HERNANDES, Crystal Research Technology 39 (10), 868-872 (2004).

128. “Current-induced conductance jumps in mechanically controllable junctions of La0.7Sr0.3MnO3 manganites” J. BASZYNSKI, W. KOWALSKI, C.A. CARDOSO, F.M. ARAUJO-MOREIRA, M.R.B. ANDREETA, A.C. HERNANDES, Czechoslovak Journal of Physics 54, D39-D42, Part 1 Suppl. D (2004).

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129. “XAS and XRD structural characterization of lanthanum-modified PbTiO3 ceramic materials” P.P. NEVES, A.C. DORIGUETTO, V.R. MASTELARO, L.P. LOPES, Y.P. MASCARENHAS, Journal of Physical Chemistry B 108(39), 14840-14849 (2004).

130. “Electrochemical nucleation of lead and copper on indium-tin oxide electrodes”

L. BULHOES, L. MASCARO, Journal of Solid State Electrochemistry 8, 238-243 (2004 ).

131. “Breakdown of the niobium oxide film under galvanostatic polarisation and in

acid solutions” M. FREITAS, C. EIRAS , L. BULHOES, Corrosion Science 46, 1051-1060 (2004).

132. “Electrochemical and electrochromic response of poly(thiophene-3-acetic acid)

films” M. GIGLIOTI, F. TRIVINHO-STRIXINO, J. MATSUSHIMA, L. BULHOES, E. C. PEREIRA, Solar Energy Materials and Solar Cells 82, 413-420 (2004).

133. “Determination of chloramphenicol in tablets by electrogenerated

chemiluminescence” C. LINDINO, L. BULHOES, Journal of the Brazilian Chemical Society 15, 178-182 (2004).

134. “Electrocatalytic properties and electrochemical stability of polyaniline and

polyaniline modified with platinum nanoparticles in formaldehyde medium” L. MASCARO, D. GONCALVES, L. BULHOES, Thin Solid Films 461 , 243-249 (2004).

135. “Rh electrodeposition on Pt in acidic medium: a study using cyclic voltammetry

and an electrochemical quartz crystal microbalance” R. OLIVEIRA, M. SANTOS, L. BULHOES, E.C. PEREIRA, Journal of Electroanalytical Chemistry 569, 233-240 (2004).

136. “Quantitative structural analysis of the transition from LT-LixCoO2 to HT-LixCoO2

using the rietveld method: correlation between structure and electrochemical performance” E. SANTIAGO, P. BUENO, A. ANDRADE, C. PAIVA-SANTOS, L. BULHOES, Journal of Power Sources 125, 103-113 (2004).

137. “Electrogravimetric investigation of formaldehyde oxidation at Pt electrodes in

acidic media” M. SANTOS, L. BULHOES, Electrochimica Acta 49, 1893-1901 (2004).

138. “Electrochemical oxidation of methanol on Pt nanoparticles dispersed on RuO2”

H. VILLULLAS, F. MATTOS-COSTA, L. BULHOES, Journal of Physical Chemistry B 108, 12898-12903 (2004).

139. “Anodic oxidation of formaldehyde on Pt-modified SnO2 thin film electrodes

prepared by a sol-gel method”, H. VILLULLAS, F. MATTOS-COSTA, P. NASCENTE, L. BULHOES, Electrochimica Acta 49, 3909-3916 (2004).

23

140. “Huge values of room-temperature dielectric constants in pellets of poly(3-methylthiophene)” S. MORAES, L. WALMSLEY, E. PEREIRA, A. CORREA, Journal Of Materials Research 19 , 2068-2071 (2004).

141. “The relationship between the structure and electrocatalytic properties of TiO2

electrodes doped with CeO2” C. RONCONI, P. ZANOTTO, U. BROCKSOM, P. NASCENTE, E.C. PEREIRA, Journal of Applied Electrochemistry 34 , 1229-1233 (2004).

142. “Development of an automated device for fabrication of self-assembled films” F.

TRIVINHO-STRIXINO, E.C. PEREIRA, L. LOPES, Quimica Nova 27, 661-663 (2004).

143. Self-doping effect in poly(o-methoxyaniline)/poly(3-thiopheneacetic acid) layer-by-layer films F. TRIVINHO-STRIXINO, E.C. PEREIRA, S. MELLO, O. OLIVEIRA, Langmuir 20, 3740-3745 (2004).

144. “Experimental and theoretical study of the demagnetization fields in

orthorhombic superconducting samples” C. NAVAU, C. A. CARDOSO, O. F. DE LIMA, F. M. ARAUJO-MOREIRA, Journal of Applied Physics 96(1), 486-493 (2004).

145. “Magnetic properties of the RuSr2Ln1.5Ce0.5Cu2O10-d (Ln = Y, Ho and Dy) and RuSr2YCu2O8-d rutheno-cuprate families: a comparative study” C. A. CARDOSO, F. M. ARAUJO-MOREIRA, V. P. S. AWANA, H. KISHAN, O. F. DE LIMA, E. TAKAYAMA-MUROMACHI, Physica C 405, 212 (2004).

146. “Magnetic field behavior of AC susceptibility in two-dimensional Josephson Junction Arrays: Evidence for nonuniform critical current density profile” F. M. ARAÚJO-MOREIRA, W. MALUF, S. SERGEENKOV, Solid State Communications 131, 759-762 (2004).

147. “Current-induced conductance jumps in mechanically controllable junctions of La0.7Sr0.3MnO3 manganese”; J. BASZYNSKI, W. KOWALSKI, C. A. CARDOSO, F. M. ARAUJO-MOREIRA, M. R. B. ANDREETA, A. C. HERNANDES, Czechslovak Journal of Physics 54 D39-D42 Part 1 Suppl. D (2004).

148. “Manifestation of Geometric Effects in Temperature Behavior of AC Magnetic Response of Josephson Junction Arrays” S. SERGEENKOV, F. M. ARAÚJO-MOREIRA; Journal Experimental Theoretical Physics Letters 80 (9), 580 (2004).

149. “Investigation of Spin Glass Behavior in LnRu-122 [Ln:Gd, Dy, Y, Ho]” C. A. CARDOSO, F. M. ARAUJO-MOREIRA, V. P. S. AWANA, E. TAKAYAMA-MUROMACHI, O. F. DE LIMA, H. YAMAUCHI,, M. KARPPINEN, Physica C 408, 183 (2004).

150. “Anomalous magnetic behavior of electrodeposited chromium thin films” L. FELICIANO, A. DE OLIVEIRA, W. SCHREINER, E. PEREIRA, Journal of Electroanalytical Chemistry 574, 333-338 (2005).

24

151. “Foundry sand recycling in the troughs of blast furnaces: a technical note” R.M. ANDRADE, S. CAVA, S.N. SILVA, E. LONGO, Journal of Materials Processing Technology 159 (1), 125-134 (2005).

152. “The nature of the photo luminescence in amorphized PZT” M.S. SILVA, M. CILENSE, E. ORHAN, Journal of Luminescence 111 (3), 205-213 (2005).

153. “Absence of relaxor-like ferroelectric phase transition in (Pb,Sr)TiO3 thin films” F.M.

PONTES, S.H. LEAL, E.R. LEITE, Applied Physics A-Materials Science & Processing 80 (4), 813-817 (2005).

154. ”Structural and ferroelectric properties of Pb1-xSrxTiO3 thin films” F.M. PONTES, S.H.

LEAL, M.R.M.C. SANTOS, Applied Physics A-Materials Science & Processing 80 (4), 875-880 (2005).

155. ”Recent research developments in SnO2-based varistors” M.R. CASSIA-SANTOS,

V.C. SOUSA, M.M. OLIVEIRA, Materials Chemistry and Physics 90 (1), 1-9 (2005).

156. “Semi-empirical studies of alkaline metals-fullerene MxC60, M@C-60 interactions” J.D. SANTOS, E. LONGO, M.E. BANJA, Journal of Molecular Structure (Theochem) 713 (1-3), 161-169 (2005).

157. “Effect of the excess of bismuth on the morphology and properties of the

BaBi2Ta2O9 ceramics” A.Z. SIMOES, G.C.C .DA COSTA, M.A. RAMIREZ, Materials Letters 59 (6), 656-661 (2005).

158. “In situ oriented crystal growth in a ceramic nanostructured system”

C. RIBEIRO, E.J.H. LEE, T.R. GIRALDI, Journal of Applied Physics 97 (2), Art. No. 024313 (2005).

159. “Theoretical analysis of the structural deformation in Mn-doped BaTiO3”

J.R. SAMBRANO, E. ORHAN, M.F.C. GURGEL Chemical Physics Letters 402 (4-6), 491-496 (2005).

160. “Effect of La2O3 addition and O2 atmosphere on the electric properties of nO2

TiO2” L.G.P. SIMÕES, M.R. CASSIA-SANTOS, M.M. OLIVEIRA, E. LONGO, J.A. VARELA, Materials Chemistry and Physics 90, 234-238 (2005).

161. “Synthesis of CaxSr1-xWO4 by the polymeric precursor method” S.L. PORTO, M.R.

CASSIA-SANTOS, I.M.G. SANTOS, Journal of Thermal Analysis and Calorimetry 79 (2), 401-406 (2005).

162. “Thermal and structural characterization of Sr1xCoxTiO3 obtained by polymeric

precursor method” M.A.F. SOUZA, R.A. CANDEIA, S.J.G. LIMA, Journal of Thermal Analysis and Calorimetry 79 (2), 407-410 (2005).

25

163. “Synthesis and characterization of SrCoxTi1-xO3” MAF DE SOUZA, AG SOUZA, RA CANDEIA, Journal of Thermal Analysis and Calorimetry 79 (2), 411-414 (2005).

164. ”Stability studies on undoped and doped Mg2TiO4, obtained by the polymeric

precursor method” M.R.S. SILVA, S.C. SOUZA, I.M.G. SANTOS, Journal of Thermal Analysis and Calorimetry 79 (2), 421-424 (2005).

165. “The effects of Co, Ni and Mn on the thermal processing of Zn2TiO4 pigments” S.C. SOUZA, M.A.F. SOUZA, S.J.G LIMA Journal of Thermal Analysis and Calorimetry 79 (2), 455-459 (2005).

166. ”Thermochemical parameters and calculations ab-initio of the

bisdimethyldithiocarbamate zinc(II) complex” J.R. BOTELHO, A.G. SOUZA, A.D. GONDIM, Journal of Thermal Analysis and Calorimetry 79 (2), 309-312 (2005).

167. “Influence of pH on iron doped Zn2TiO4 pigments” S.C. SOUZA, I.M.G. SANTOS,

M.R.S. SILVA, ournal of Thermal Analysis and Calorimetry 79 (2), 451-454 (2005).

168. “Structural and electronic properties of PbTiO3: Density functional theory applied to periodicmodels” RC DE LAZARO E LONGO, A BELTRAN, Quimica Nova 28 (1), 10-18 (2005).

169. “Thin-doped indium oxide nanobelts grown by carbothermal reduction method” M.O. ORLANDI, R. AGUIAR, A.J.C. LANFREDI, E. LONGO, J.A. VARELA, E.R. LEITE, Applied Phyisics A 80, 23025 (2005).

170. "Preparation and electrochemical characterization of perovskite/YSZ ceramic

films" D. Z. DE FLORIO, R. MUCCILLO, V. ESPOSITO, E. DI BARTOLOMEO, E. TRAVERSA, Journal Electrochemical Society 152 (1), A88-A92 (2005).

171. “The CeO2-TiO2-ZrO2 sol-gel film: a counter-electrode for electrochromic devices”

C. AVELLANEDA, L.O.S. BULHOES, A. PAWLICKA, Thin Solid Films 471 100-104 (2005).

172. “Electrodeposition of lead on ITO electrode: influence of copper as an additive”

C. AVELLANEDA, M. NAPOLITANO, E. KAIBARA , L.O.S. BULHOES, Electrochimica Acta 50, 1317-1321 (2005 ).

173. “The use of a metallic bilayer for the oxidation of small organic molecules” R.

OLIVEIRA, M. SANTOS, B. MARCUSSI, P. NASCENTE, L.O.S. BULHOES,, E.C. PEREIRA, Journal of Electroanalytical Chemistry 575 , 177-182 (2005).

174. “An EQCM investigation of charging RuO2 thin films prepared by the polymeric

precursor method” M. SANTOS, A. TEREZO, V. FERNANDES, E.C. PEREIRA, L.O.S. BULHOES, Journal of Solid State Electrochemistry, 9 91-95 (2005).

26

175. “Thermal analysis of Caucasian human hair” V.F. Monteiro, A.P. Maciel, E. Longo,

Journal of Thermal Analysis and Calorimetry 79(2), 289-293 (2005).

176. “Magnetic and superconducting properties of RuSr2Gd1.5Ce0.5 Cu2O10-δ samples: Dependence on the oxygen content and aging effects” C.A.CARDOSO, A.J.C.LANFREDI, A.J.CHIQUITO, F.MARAUJO-MOREIRA, V.P.SAWANA, H.KISHAN, R.L.DE ALMEIDA, O.F.DE LIMA, Physical Review B 71, 1 (2005).

177. “Optical properties of potassium niobate thin films prepared by the polymeric

precursor method” A. Z. SIMOES, A. RIES, C. S. RICCARDI, M. A. ZAGHETE, J. A. VARELA, Materials Letters 59 (5), 598-602 (2005).

Chapter in Books:

1. "Magnetic properties of artificially prepared highly ordered two-dimensional shunted and unshunted Nb–AlOx–Nb, Josephson junctions arrays”; F. M. Araújo-Moreira and S. Sergeenkov; invited chapter to the book: Progress in Josephson Junction Research, Editor Frank Columbus, Nova Science Publishers (2004).

2. “Spin Glass Behavior in Rutheno-Cuprates”; C. A. Cardoso, and F. M. Araujo-Moreira; invited chapter to the book: Horizons in Superconductivity Research, Ed. Frank Columbus, Nova Science Publishers, New York (2004).

27

1.4 Results of the Innovation Division

INNOVATION RESEARCH

SUBPROJECT

SITUATION

1) Development of industrial process for production of nanoparticles of niobium oxide for application in electronic ceramics, using a clean chemical route.

CBMM Concluded

2) Development of industrial process for production of nanoparticles of niobium oxide for application in electronic ceramics, using spray pyrolysis.

CBMM Concluded

3) Development of high voltage ZnO varistor. The objective is to characterize the raw materials, optimization of the processing conditions and formulation of the varistor composition.

DELMAR Ltda Concluded

4) Development of Temperature Sensors. Actual Situation: A prototype of a temperature sensor has concluded based on NTC perovskites. The main processing parameters for the reproducible fabrication of a batch Quantity of sensors was studied.

INDUSTRY 2 Concluded

5) Study on the Behavior of the Al2O3-Cr2O3 and Al2O3-ZrO2 Refractory Systems, Working in Close Contact with Molten Glasses, for the Production of Bio-Compatible Ceramic Fibers.

RCR Concluded

6) Influence of the Product Composition and Operational Parameters on the Taphole Mix Operational Performance. The objective was to study the behavior of different taphole mixes under critical operational conditions, in order to optimize the performance of commercial products.

CSN Concluded

7) Enhanced behavior of the torpedo car refractory by the nanoparticle impregnation technique. It was developed a cerium solution able to partially occupy the free pores in the microstructure of the Al2O3/SiC/C/MgAl2O4 refractory lining used in the torpedo cars.

CSN Concluded

8) Electrofused refractory aggregates for cement kiln Elfusa Concluded

9) Recycling of Ceramic Industry Waste

FAPESP Concluded

10) Development of a Vitreous Silica Based refractory Composition For the Crucibles Used on The Foundry of Dental metallic Alloys and Precious metals (assaying)

Deflotec Ind. Com. de Produtos Refratários LTDA

Concluded

28

11) Development of a Glass Reject Based Deffloculant for Masses in the Ceramic Triaxial

Ceramic Industry Union of Porto Ferreira – SP

Concluded

12) Fireclay Refractories Produced with Low Temperature (<500°C) Refractory Aggregates (grog)

Refratário Scandelari S/A

Under development

13) Development of automotive temperature sensors

Metalurgica Iguaçu Ltda

Under development

14) Development of Translucent Alumina Pieces for the Industrial of dentistry Products

Tecnident Under development

15) Ceramic processing of graphite Faber Castell Under development

16) Chemical/Ceramic Synthesis/Inovation FAPESP Under development

17) Fiber reinforcement FAPESP Under

development

18) Aluminum silicate (fireclay class) refractory CSN Under development

19) Development of a fuel leak sensor for commercial and industrial reservoirs

The Ipiranga Petroleum Company

Under development

20) Development of a low-cost multi-use laser gun for law-enforcement forces

UFSCar Under development

21) Development of an industrial process to obtain large quantities of ferromagnetic graphite

National de Grafite Inc.

Under development

22) Refractory products for anode baking furnaces. Togni S.A. Materiais Refratários

Under development

29

PATENTS DEPOSITED

During this year four patents were deposited and are described bellow:

- Method for producing corrosion resistant refractories

Silica-based refractories are impregnated with protective material that is more resistant towards attack by corrosive species. The protective material coats the surface of the refractory matrix and fills some of the cavity volume of its pores, crevices, surfaces imperfections and irregularities. The protective material is positioned by impregnating the refractory with a precursor which, under the input of energy, is converted into the corrosion resistant protective material.

Praxair, Technology, Inc.

US6,667,074 B2

- Method to transform amorphous carbon in crystalline

graphite in graphite mines using transition metal

nanoparticles. Abstract: The performance of a graphite mine can be described by the obtained graphite mechanical resistance (bending resistance, tip breaking, etc) and by its graduation (mainly the blackness level). However, based on the usual production methods used in graphite mines, these two characteristics are difficult to be maximized simultaneously, that is, higher the mechanical resistance smaller is the blackness level. The degree of black in a graphite mine is related with the amount of graphite and the amount of amorphous carbon. As higher is the amorphous carbon, smaller will be the degree of blackness and higher is the mechanical resistance. The present invention has as main objective decrease the amount of amorphous carbon in a composition of the graphite based mine, by means of the transformation of this disordered material (amorphous carbon) into crystalline graphite. For this, it is proposed the use of nanoparticles (particles with 3 to 70 nm size) of transition metals such as Fe, Ni and Co. These particles will be generated during the sintering through the decomposition of a chemical compound, that is, the precursor raw material containing the proposed transition metals. With the transformation or conversion of amorphous carbon, is possible to intensify the blackness level of the graphite carbon mine, reducing the dispersion of both, the mechanical resistance and the blackness level.

FABER CASTELL

Submitted

Ferromagnetic graphite

Development of an industrial process to obtain large quantities of ferromagnetic graphite

Patent deposited at INPI under protocol Nr. 003025

Submitted

30

Preparation of thin film of Pt over inexpensive substrate FAPESP Submitted

Development of a Glass Reject Based Deffloculant for

Masses in the Ceramic Triaxial

FAPESP Submitted

A New Method for The Dosing of Structural Concrete

FAPESP Being

Prepared

Development of Ceramic Fiber Furnace of slag of

blast furnace

CSN Submitted

P R I Z E S

Finep Prize of Technological Innovation, category

Research Institution, granted to MCDCM.

Honorable Mention from the Brazilian Association of

Expertness and Evaluations in the category Technical

Expertness for Steelmaking Refractories.

Senior Research Prize given by the Prefeitura de São

Carlos granted by E. Longo for the technical

contribution in Ceramics.

Prize Intendente Câmara, a ABM, Brazilian Metals

Association granted to the technical contribution

"Desenvolvimento de refratários para carro torpedo"

XXXII Seminário de Redução de Minério de Ferro e

Matérias Primas (58Th Annual Congresso of ABM).

FINEP

São Carlos

ABM

31

1.5 – Continuous Education and Dissemination Results ACTIVITY RESEARCH

SUBPROJECT

“NANOPARTiCLES: OLD IDEAS WITH NEW USES”

Prof. Dr. Edson Roberto Leite – Prof. Dr. Elson Longo

Place: Winter School of Physics Department (DF/UFSCar)

“TRANSMISSION ELECTRON MICROSCOPY: APPLICATIONS IN NANOTECHNOLOGY” Prof. Dr. Daniel Mário Ugarte and Daniela Zanchet (Laboratório de Microscopia – Laboratório Nacional de Luz Sincrotron)

Place: VII Winter School of Physico-Chemistry and Analytical Chemistry (DQ/UFSCar)

Mini-course

“SINTERING STUDY BY THERMAL ANALYSIS”

Prof. Dr. Jürgen Blumm

(Netzsch Geratebau GmbH)

Place: Materials Science Department

Seminars

“Simulation of Ceramics Materials”

Prof. Dr. Juan Andres

(Universitat Jaume I)

Castellon-Espanha

Place: Chemical Department (DQ/UFSCar)

“Simulation of Semiconductors Oxides-SnO2 and TiO2”

Prof. Dr. Armando Beltran


Castellon-Espanha


“Nitrate Ceramics”

Prof. Dr. Roger Marchand

Universitè de Rennes - France


Undergraduate and Graduate Level

32

“Densification and Grain Growth of Advanced Tin Oxide Ceramics “ Prof. Dr. Richard Bradt

University of Alabama USA


“Photoluminescence of titanates”

Profa. Dra. Emmanuelle Orhan

Universitè de Rennès – France


“New Materials for a New Millenium”

Prof. Dr. Elson Longo

MCDCM/LIEC-UFSCar

Place: Institut of Chemistry (IQ/UNESP-Araraquara)

State of São Paulo – Materials Science Engineering Students Congress

“CORROSION IN REFRACTORIES MATERIALS”

Ph.D. Sidiney Nascimento Silva, Ph.D. Fernando Vernilli Jr

MCDCM/LIEC-UFSCar

Courses of 8 hours of classes

State of João Pessoa – Paraíba - Universidade Federal da Paraíba


Prof. Dr. Elson Longo, Dr. Carlos Alberto Paskocimas, (MCDCM/LIEC-UFSCar)

Courses of 8 hours of classes

33

ACTIVITY RESEARCH SUBPROJECT

The excellence of the activities of MCMDC has been recognized by the Brazilian radio, TV and written press. Several reports on such activities were publicized also with the objective of contributing to the diffusion, throughout the whole Brazilian society, of the science and technology developed by MCMDC. As examples of such public recognition and important diffusion support one can cite the newspapers:

- O Imparcial, Araraquara, SP.

- A Folha, São Carlos, SP.

- A Tribuna, Sáo Carlos, SP.

- Primeira Página, São Carlos, SP.

- O Estado de São Paulo, São Paulo, SP.

As for magazines:

- Notícias, a magazine from FIESP and CIESP.

- Pesquisa, from FAPESP, one of the most active R&D supporting organizations in Brazil

-

As for the TV, MCMDC can rely upon TV Company covering the whole Central Region of São Paulo state, produced as series of reports covering the activities of MCDCM and TV-Cabo Branco of the Paraíba and TV Ponta Negra of the Rio Grande do Norte who has been

helping in the public diffusion of a series of MCMDC achievements, either related with its basic research, or related to the industrial use of technologies developed by MCMDC.

Diffusion to the Public

34

2 – Results in Basic Research

2.1 – Chemical Synthesis

Nanostructured ceramics materials have become a topic of increasing interest in the

research center. This is mainly due to the ability of nanomaterials to display novel or

better properties when compared to bulk materials which may lead to the

development of electronic and opto-electronic nanodevices with superior performance.

It is well known that size and morphology are very important parameters in

nanostructures. Therefore, it is of fundamental importance to be able to control these

aspects and to reproduce them, in order to control the final properties of the

material.The hydrolysis of metal halides and other inorganic salts is a method widely

employed to process metal oxide nanoparticles, such as TiO2, doped and undoped

SnO2, ZnO, and ZrO2. The cation is normally hydrolyzed by pH changing, which promotes

the precipitation of an insoluble amorphous hydrous metal oxide. The main problem of

this approach is the crystallization step, since heat treatment or hydrothermal treatment

is required to promote crystallization. During the crystallization step, each hydrous metal

oxide particle can generate several nuclei, rendering it very difficult to control particle

morphology and shape .The synthesis of metal oxides based on the hydrolysis of

inorganic salts or metal alkoxides, with a high degree of crystallinity at room

temperature, is still a challenge.

In a recent work, published in the J. of nanoscience and Nanotechnology, we describes

the synthesis, at room temperature, of doped and undoped SnO2 nanocrystals (particle

size ranging from 1-3nm) with no thermal or hydrothermal treatment. To the best of our

knowledge, this is the first time that the synthesis of doped and/or undoped SnO2

nanocrystals at room temperature has been reported. This new synthesis method is

based on the controlled oxidation, hydrolysis, and polycondensation of tin ions, in an

ethanol solution. Another novel aspect of this method is the possibility of using

surfactants, which may provide improved control over the particle size. This synthesis

method allowed us to conduct several basic studies concerning nanocrystal growth as

well as optical properties of SnO2 nanostructured. For instance, we studied the effect of

the initial tin (II) ion concentration, in an ethanolic solution, on the mean particle size of

the nanoparticles. The Sn2+ concentration was varied from 0.0025 M to 0.1 M, while all

other synthesis parameters were kept fixed. Moreover, an investigation of the effect of

agglomeration on the nanoparticle characteristics (i.e. size and morphology) was also

done, by modifying the pH of SnO2 suspensions. Several samples were characterized by

transmission electron microscopy, optical absorption spectroscopy in the ultraviolet

range and photoluminescence measurements. The results show that higher initial ion

concentrations and agglomeration lead to bigger nanoparticles. The concentration

effect is explained by an enhanced growth due to a higher supersaturation of the liquid

medium. On the other hand, it was observed that agglomeration of the nanoparticles in

suspension induce coarsening by the oriented attachment mechanism. This study was

published in the J. Phis. Chem. B.

We studied also the quantum confinement effect in colloidal SnO2 nanocrystals. We

observed by photoluminescence (PL) study that the SnO2 nanocrystal presents intense

PL around 320 nm. This PL was attributed to band-to-band transition and the gap energy

35

showed a dependence with the crystal size. This crystal size dependence suggest that

the PL behavior stem from a free exciton decay process. This dependence was well

described by the weak confinement regime predict by the effective mass model. This

work was published in the Appl. Phys. Letters.

In this period we maintained the development of ferroelectric oxides. We started

the crystallization study of amorphous precursor processed by oxidant peroxo method

(OPM) under hydrothermal condition. The OPM process is an interesting route that allow

to obtain an inorganic amorphous precursor free of carbon and Cl and it crystallization

occurs around 600oC. The crystallization of this precursor under hydrothemal condition is

a project that was born in our laboratory. The preliminary results showed that it is possible

to obtain crystalline lead titanate (PT) in a temperature as low as 120oC. Other important

result was the control over the particle morphology of the PT. It was obtained particle

with cubic and fibers morphology, changing the lead concentration and temperature

during the hydrothermal treatment. Conventional (zirconia- and barium cerate-based)

and non-conventional (bismuth-copper-oxide and lanthanum-molybdenum-oxide)

oxide ion solid electrolytes were synthesized also by different chemical techniques for the

production of nanosized sinteractive ceramic powders. Intergranular and intragranular

conductivities were determined and related to the microstructure.

2.2 – Semiconductors and Ferroelectric Materials

The main results obtained during the present period in the area of ferroelectric thin

films and ceramics are discussed below. The main goal in this period was to develop

ferroelectric thin films by controlling the chemical and microstructural features aiming for

applications in FeRAM and DRAM memories. Also the fatigue resistance and retention

characteristics of the films deposited on metal and oxide conductor electrodes as well

as the preparation of amorphous films were investigated for DRAM memory. Significant

advances in the processing and microstructural features of ferroelectric ceramics

indicate that the chemical phase control with more than two cations is extremely

important, especially to obtain very good electrical properties. The use of microwave

oven allows the preparation of bottom electrodes and ferroelectric thin films with great

stoichiometric control and with superior properties than films annealed in the

conventional furnace. The advantages of microwave oven for thin films and ceramics

are: decrease in the temperature and time of the thermal treatment, reduced

processing costs, better production quality. To obtain reasonable ferroelectric and

dielectric properties it is necessary to grow textured films. For this purpose, the microwave

annealing is an excellent choice because the crystallization starts from the interface of

film-substrate leading to an ordered film. Several ferroelectric systems were investigated

in the thin films and ceramics forms such as: Pure lead zirconate titanate (PZT) and

modified with niobium (PZTN), pure lead magnesium niobate (PMN) and modified with

lead titanate (PMN-PT), lithium niobate and tantalate (LNO e LT), strontium titanate (STO),

barium strontium titanate (BST), pure lead titanate and modified with calcium and

strontium (PCT and PST), strontium and barium niobate and tantalate (SBT, SBN, BBT and

BBN), barium and zirconium titanate (BZT), lanthanum bismuth titanate (BIT and BLT).

The main activities developed in this period in this field were:

36

1. Ferroelectric phases were obtained by mechano-chemical synthesis. The powders were compacted and sintered and their crystal structure and microstructure

characterized;

2. The polymeric solutions were prepared and their viscosities and ionic concentrations adjusted. The films were deposited in silicon and platinum coated silicon

substrates and thermally treated in a conventional furnace to obtain the desired

crystalline phase;

3. Crystalline phases obtained in the thin films and ceramic were characterized by Rietveld method. The micro-deformation and crystallite size were also obtained;

4. Atomic force microscopy, scanning electron microscopy and transmission electron microscopy were used to characterize thin films and ceramics.

5. The electrical characterization of thin films and ceramics were performed by depositing conducting electrodes by using platinum and gold "sputtering" ;

6. Thermal treatments in the microwave furnace were performed with the objective to avoid interfacial reactions and favor the texture growth of the films.

Regarding the research in semiconductors oxides, the focus was in the grain

boundary properties in tin oxide ceramics, as well as, in the synthesis of SnO2 and ITO

(Indium tin oxide) nanobelts by carbothermal reduction process. For instance, we

reported for the first time in the literature the synthesis of ITO nanobelts (communication

published in the Appl. Phys. A).

2.3 – Optical and Electrochromic Materials

The main focus of the research in optical properties was the study of PL in amorphous

materials (basically amorphous oxides). Based on theoretical calculations, we try to

understand the source of photoluminescence in the amorphous phase of thin films and

ceramics powders of the following materials BaWO4, PbWO4, CaWO4, Li2TiSiO5 and SnO2.

Besides the theoretical study, thin films and powders were experimentally evaluated by

photoluminescent properties. By using theoretical and experimental models based on

quantum mechanics it was possible to understand the source of photoluminescence in

the amorphous phase.

2.4 – Crystal Growth and Non-crystalline materials

The main results were related to the use of laser to develop dense

ceramics and single crystal fibers. We have used the laser sintering

technique with success to produce dense ferroelectric ceramic and

translucent thermoluminescence ceramics. We also grown single crystal

fibers with high optical quality for solid state laser development,

specially when doped with Nd3+ ions. Other interesting results were the

preparation and characterization of -BaB2O4 (BBO) thin films and

nanopowders. Borate glasses also were produced and its optical properties

characterized. The second harmonic generation intensity of a BBO layer was

controlled by the adjustment of the fraction of crystallized layer."

37

2.5 – Magnetic materials

The research focus still in magnetic properties of nanostructured materials.

Now we are applying the synthesis route used to process nanocomposite in the powder

shape, to process nanocomposite thin film. The liquid precursor used to process the

material is deposited by spin coating and sintered in H2 atmosphere. The results indicate

that it is possible to process SiO2-Ni nanocomposite thin film, with thickness of 200-800 nm,

with interesting superparamagnetic behavior.

We have reported also a novel and inexpensive chemical route leading to

undoubtedly obtain macroscopic quantities of room temperature magnetic carbon. The

material obtained by this procedure has an stable and strong ferromagnetic response

even at room temperature where it can be attracted by a commercial magnet. We

have obtained this magnetic carbon by a vapor reaction consisting of a controlled

etching on the graphite structure. This outstanding behavior has been previously

postulated to be associated to micro-structural characteristics breaking the continuity of

the de-localized π-electron clouds of the graphitic material, thus allowing the existence

of magnetic centers related to the topology. The production of bulk carbon magnetic

material in a macroscopic amount opens new and novel applications of this material in

engineering, as well as in medicine and biology as a unique biocompatible magnetic

material (article in press in Physical Review B-Rapid Communications, March/2005)

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3. Technological Results

In terms of technological innovations, the center developed several projects of strong industrial interest, which resulted in several patents and papers . The interaction with industries was conducted through specific projects with the different segments.

The projects developed of metallurgical sector, consisted in advanced refractories have to be applied in order to secure high metal quality from economical and ecological aspects. During services refractories must note only tolerate high temperature but also withstand stress (thermal and / or mechanical) as well resist combined attack by liquids such as molden metals, slags and fluxes.

Researchers of the MCDCM also support the improvement of the quality of ceramic products by means of determining the characteristics of the products being processed by several companies and improving the processing of those products. New products have been developed for several companies by means of technically and economically feasible chemical processes. This effort is exemplified with the projects of technical and scientific cooperation with Companhia Brasileira de Metalurgia e Mineração (CBMM). The nanosized niobium oxide being processed using polymeric precursor method and spray pyrolysis has been used for production of niobium oxide powders.

The most important projects related to the technological section are: 1) Development of industrial process for production of nanoparticles of niobium

oxide for application in electronic ceramics, using a clean chemical route. This project was concluded with CBMM and consists in obtaining of nanosized niobium oxide powders using an appropriated chemical solution and precipitation at low temperatures.

2) Development of industrial process for production of niobium oxide nanoparticles for application in electronic ceramics using spray pyrolysis. This project was concluded with CBMM and consists in use a chemical solution of niobium to obtain a spray by means of high energy piezoelectric ceramic as well as to precipitate the nanoparticles from the spray by using heating.

3) Development of high voltage ZnO based varistor. This project was concluded with DELMAR and the goal is to characterize the raw materials, optimization of the processing conditions and formulation of the varistor composition.

4) Development of temperature sensors. This project concluded and was contracted by a not disclosed company. A prototype of a temperature sensor was concluded based on NTC perovskites. The main processing parameters for the reproducible fabrication of the batch quantity of sensors was studied.

5) Study of the behavior of the Al2O3–Cr2O3 and Al2O3-ZrO2 refractory systems, working in close contact with molten glasses for the production of biocompatible ceramic fibers. This study was contracted by RCR Corporation was concluded. The main objective was verify the influence of the impurities come from the refractory lining during the production of biocompatible glasses (or fibers).

6) Influence of the product composition and operational parameters on the Taphole mix operational performance. This project was contracted by CSN was concluded. The objective was to study the behavior of different taphole mixes under critical operational conditions, in order to optimize the performance of commercial products. This study involved laboratory simulations and post mortem studies of different taphole mixes used.

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7) Enhanced behavior of the torpedo car refractory by the nanoparticulate cerium impregnation technique. This project was contracted by CSN was concluded. A cerium solution was developed to occupy the free pores in the microstructure of the torpedo car refractory lining aiming the enhancement of the corrosion resistance. It was observed that the nanoscale protection mechanism introduced by the use of nanoparticulate cerium impregnation technique. After the dynamic slag and fracture energy tests, it was verified that this new corrosion prevention technique decreased to 8% the damages in the torpedo car refractory lining.

8) The group is working along with ELFUSA Gerla de Eletrofusão in the development of new electrofused refractory aggregates for cement kilns refractory linings. A special CaTiO5 electrofused aggregate was concluded and early tests indicated a very promising material.

9) Recycling of Ceramic Industry Waste. The group has proved that it is possible to recycle virgin (despite un-appropriate to sell) scrap from the brick, floor and roof tile and sanitary ware industry, as a substitute for the normal coarse aggregate and sand in non structural concrete and mortars for laying and masonry purposes.

10) Development of a Vitreous Silica Based refractory Composition For the Crucibles Used on The Foundry of Dental metallic Alloys and Precious metals (assaying). Sponsoring Company – Deflotec Ind. Com. de Produtos Refratários LTDA Localization – São Carlos – SP. Crucibles made by slip casting the above developed mix, performed very well comparatively to imported materials based on the same mineralogical phases. Comparatively to the commonly used mulcorite based crucibles, the ones developed at LAMARCO performed 10 times better (number of runs).

11) Development of a Glass Reject Based Deffloculant for Masses in the Ceramic Triaxial. This development was one of the last ramifications of the SEBRAE PROJECT implemented with the Ceramic Industry Union of Porto Ferreira – SP. The project also is part of our Research Division on Recycling. This new deffloculant was technologically evaluated comparatively to the sodium silicate. It is cheaper and as effective as this last one.

12) Fireclay Refractories Produced with Low Temperature (<500°C) Refractory

Aggregates (grog), Sponsoring Company – Refratário Scandelari S/A Localization – Lapa – PR. Anew processing route was developed for the production of fireclay aggregates (grog) to be used in the fabrication of fireclay refractories (class of 30 –35% Al2O3). There is a great demand for this kind of aluminum silicate refractories, specially in the sugar cane and agro business. The generic use of hard fired fireclay grogs (>1300°C) leads to a low

profit margin in the final product. The developed technology is very attractive commercially considering it brought the grog cost to one third of the current one, providing a larger profit margin.

13) Development of automotive temperature sensors. Metalurgica Iguaçu Ltda Different kinds of perovskite-based NTC temperature sensors have been sinthesized by mixing, pressing and sintering Ni, Cu, Mn, and Co oxides. Some compositions have also been synthesized by a modified polymeric precursor technique. The electrical characterization was carried out by dc methods. An experimental sequence for producing large quantities of each composition was evaluated for the scaling up of the thermistor production. The challenge

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posed by local industries looking for Brazilian-made temperature sensors for application in the automotive industry has been overcome: four out of six thermistors with behavior similar to commercial thermistors have been successfully developed.

14) Development of translucent alumina pieces for dentistry applications. This project was contracted by Tecnident Ltda, of the dendistry sector aiming to produce translucent alumina bracts.

15) Ceramic processing of graphite. This project was contracted by Faber Castell and is under development. The project consists in adjustment of processing of the graphite aiming to obtain graphite with higher mechanical resistance by using the injection molding and nanoestructured dopants. This project resulted the patent 4 described in this report.

16) Chemical/Ceramic Synthesis/Inovation. The group devoted efforts to the development of a new class of ceramic powders defloculant based on pre-polymeric chemicals and managed to do so. A patent manuscript has been submitted for FAPESP appreciation and sponsorship.

17) The group devised a new testing method for pure shear evaluation of concrete specimens, devoted to evaluate the effect of fiber reinforcement on shear of Portland concrete, specially for keyed structures in bridges.

18) The group has developed a new aluminum silicate (fireclay class) refractory composition for the Company Refratário Scandelari, using cheaper raw materials mined near the company head quarters, in substitution of a special flint clay which was mined 500km away from the company.

19) Development of a fuel leak sensor for commercial and industrial reservoirs; project financed by The Ipiranga Petroleum Company.

20) Development of a low-cost multi-use laser gun for law-enforcement forces; project financed by UFSCar.

21) Development of an industrial process to obtain large quantities of ferromagnetic graphite ; project financed by National de Grafite Inc.

22) Refractory products for anode baking furnaces. Refractories used in anode baking furnaces must be renewed regularly. There are several stresses acting on the refractory lining. The extent of these stresses will vary somewhat between an open and a closed pit furnace, but generally the origin and the implications of the stresses are the same. This project contracted by Togni S.A. Materiais Refratários has been concluded. A post mortem study objective of determining the mechanism of the corrosion developed during the industrial application. It was concluded that containing a high amount of calcium and sodium aluminum-silicate interacts with the microstructure of the refractory promoting the corrosion.

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CONTINUOUS EDUCATION AND DISSEMINATION DIVISION

Our activities in this year can be resumed in:

1. A trip to the ceramic world - This activity started last year and has given scientific information to students living up to 400 km far from MCDMC. Four towns were visited: Monte Aprazível, Promissão, Buritama and Birigui, all located in the northeast region of the São Paulo state. A total of 200 students took part on the activities. It was the first time that researchers from the university visited schools in Buritama and Birigui. The idea was to explain the difference between glass, crystal and traditional and advanced ceramics. Several experiments were shown in order to introduce basic concepts associated with chemical reaction, fluids, magnetic and electrical phenomena and optics. It was possible also to speak on the importance to finish their studies and to make them think about interesting and exciting scientific themes. 2. Teaching Physics Through Experiments - As part of the continuation of this project, high school students from São Carlos and Cajuru (nearby town) participated on physics demonstration and lectures at the Institute of Physics of São Carlos. A total of 92 students took part on that activity. The students from high schools spent one morning talking and discussing science. All those activities have two major objectives: the first one is to teach the basic concepts of science with a different point of view and pointing out where those concepts are applied in the day by day situations. The second one is to show to those students (potential future undergraduate students) and teachers the ambient of the university life and to try to create the questioning and thinking behavior on several issues, and not just in believing what the teachers tell them. 3. Students at the MCDCM labs - As an extension of the earlier projects, we introduce a new approach on the teaching the concepts of chemical and physical process involved in the ceramic properties and production process. This project consists in transform the high school senior students from nearby cities in graduation students for one day. The students have the opportunity to live as real graduate students, with a visit to the Universidade de São Paulo and university ambient and MCDCM laboratory activities. The visit starts with a lecture about the Universidade de São Paulo Campus, and after this lecture the high school students are invited to visit the several units of the campus, including its infrastructure (restaurants, sports center, etc..). The following activity is the lunch time, where everyone eats at the university restaurant. During this lunch time the high school students have the opportunity to talk with the actual graduate students about the course they are interested and its characteristics. In the afternoon the students are separated into groups of 3-5 people and they visit the researches laboratory of MCDCM. In this part of the day they are treated as real researches and some simple laboratory problems and tasks are presented to the group and they are asked to solve them. They must work as a team and they actually feel the need of the rationalizing about the problem, and how important is the basic knowledge in physic and chemistry.

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4. Ceramic Materials Educational Project - As presented in our last report, the approach used in this specific project is the interaction with the students through classes given by the members of the MCDCM in public schools (specially the ones with low income students). Last year the school that was chosen for participating on that project was "Gabriel Félix do Amaral" from São Carlos. One hundred and fifty students from 5th to 6th grades participated of the activities that occurred in their classroom. Each step of the activities occurred in the free time period of the students during one whole week and once a month. The theme chosen to develop in the Gabriel Félix do Amaral school was clay. The methodology used included 5 steps: basic concepts; experimental activity with clay; importance and use; environmental classes and classifying other ceramic material. The procedure was to offer comic books to the students; the comic books were developed by the MCDCM members, with a story, for example, about the clay composition, usage in ancient times, evolution of writing and so on. In the following activity, the teacher discussed the theme and let the students free to write, with their own knowledge, small texts, for example, about clay and its importance. These texts were analyzed with the objective to verify the understanding of the theme and to detect deficiency in basic science. All information was collected and a meeting was performed with the coordination of the school for discussion of some points. This action helped the school to define strategy to remove deficiency of the students. It is very important to keep in mind that our project does not have the objective to transfer responsibility. Our focus is to motivate the students for basic and material science. Up to now, about 300 students have been assisted by this project. 5. School on Crystal Growth and Advanced Materials

The objective of the School on Crystal Growth and Advanced Materials (SCGChA) is to foster activities connected with the growth and characterization of crystals, with particular emphasis on training, scientific research and technological applications. The idea is that researchers in this field from all over the Brazil will be able to meet and learn from each other. The SCGChA also promoted the training and development of young students and researchers. Themes in principles and methods of crystal growth were presented together with different characterization techniques. The SCGChA was a forum for discussion of aspects of crystal growth, the challenges we face at the present time, and perspectives for the future.

6. Workshop on Nanostructured Ceramics Interface MCDCM has structured and developed the Workshop on Nanostructured Ceramics Interface held in June at Anacã Hotel. In this workshop were given classes with the objective of offering to the teachers and students a comprehensive vision of Nanotechnology and its implications for the economic and industrial development, as well as the basic concepts that guide its development. There was an extensive discussion between the teachers and students the improvement on Nanostructured Ceramics Interface.

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7. Combining Nanostructured materials with alternative energy in order to

improve device efficiency

The inaugural MRS Symposium S, Nanostructured Materials in Alternative Energy Devices, provided a dynamic overview of how nanostructured materials can improve alternative energy devices. The main problem concerning new technologies of energy conversion and storage remains on the device's efficiency. Projects based on nanostructured materials can offer new or improved technologies in devices involving electrochemical reactions and heterogeneous catalysis such as fuel and solar cells, batteries, etc. Nanoscale structures alter dramatically the surface reaction rates and electrical transport throughout the material, causing a dramatic improvement in energy storage, conversion and generation. During the symposium, spectacular examples were shown to demonstrate the advantage of nanostructured materials to fabricate devices with superior performance. M. Grätzel, from EPFL, Switzerland, discussed recent results about dye sensitized solar cells (DSSC), showing devices with very good performance (efficiency higher than 11%). It was clear that modifications and new architectures of semiconductor nanostructured thin films (fundamental part of DSSC and other solar cells devices) are the best way to improve solar cell performance. Significant results were also shown in the processing and performance of lithium-ion batteries and fuel cells. Debra Rolison of Naval Research Laboratory discussed the processing and design of new nanostructured architectures in order to obtain lithium-Ion batteries with higher performances. The sol-gel process showed to be the best option in order to obtain such controlled nanostructures. The combination between nanostructured materials and alternative energy devices is a promising way to develop a wide range of new technologies for a healthy future and is an active research area. 8. The Ceramic Center Hosts High School Teachers and Students In this period were scheduled visits to the Ceramic Center of high school teachers and students. The visits were held at the Group of Crystal Growth and Ceramic Materials – USP and at the Interdisciplinary Laboratory of Electrochemistry and Ceramics of the Department of Chemistry of UFSCar and UNESP. These students, during a 8 hour period received explanations and participated of mini-analyses in several pieces of equipment: X-ray diffractometer, scanning electron microscope, atomic force microscope and tunneling microscope. They were also given a short lecture on Molecular Modeling using the first principles of Quantum Mechanics. The four modules were taught in practical classes of 100 minutes. These courses are opened the whole year, only needing that the high school is registered at USP or in LIEC-UFSCar. The activities undertaken by the Ceramic Center were shown to be perfectly aligned with such tendency of high school students getting in touch with laboratories during scheduled visits. Therefore there is a team in the center available to organize and carry out such diffusion work. High schools from the cities of São Carlos, Cajuru and Catanduva have visited the Center.

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9. Comic Book

Researchers of the MCDMC staff have developed a specific text of elementary level to be distributed to the students during activities in schools aiming to motivate them to read and to discuss themes on Materials Science. This book has been used also along with the Ceramic Materials Education Project. The chosen theme of the first book is clay. The second book will be about glasses and recycling.

10. Production of 3D Animation

In this period were elaborated five 3D animations (films during 2 or 3 minutes). They were exhibited in the high schools and during paper presentations in Brazil and abroad. The basic objective of the animations is to show in a clear and scientific way the development of the research activities of the Center, moreover in nanostructured ceramics, nanoparticles, ceramics interfaces, refractory corrosion, hair care and sensors. On the other hand, there has been a great interest from the regional TV stations to show the animations associated with the research activities undertaken by the Center, what resulted in an average of one monthly interview in TV channel of highest audience in the region. Nowadays this way of diffusion has already guaranteed a space in the national media in closed TV channels.

11. One Day of Undergraduate Student - Researchers of MCDMC have participated of the open school day in the Diocesano School of São Carlos presenting the comic book to stimulate the students for discussing about clay, mineral exploration and electronic ceramics. 12. Participation of the Center in National and International Reviews

a) The Ceramic Center, by means of Prof. Dr. Reginaldo Muccillo selects and edits the Revista Cerâmica, official organism of the Brazilian Ceramic Society. Prof. Dr. J. A. Varela and Prof. Dr. E. Longo, other members of the Center are also members of the editorial committee of Revista Cerâmica.

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b) The Center has also a strong participation in the review Revista Cerâmica Informação, edited by Faenza Editrice do Brasil Ltda. Prof. Dr. J.O. Paschoal, a member of the Center is the Technical – Scientific Editor of the review and Prof. Dr. E. Longo is also one of the members of the technical – scientific council of the review.

c) Members of the ceramic center had strong participation as reviewer of international journal such as J. Am. Ceram Soc., Advanced Materials, J. Am. Chem. Soc and others. The group has a member (Prof. Dr. Edson R. Leite) of the editorial board of the J. Nanoscience and Nanotechnology.

13. Extension Course for Teachers

A great amount of knowledge with a lot of practical work in the classroom, this was the conclusion of the high school teachers that participated of the Extension Course for Teachers. In this course were offered notions of fundamental chemistry from a series of practical experiments, involving also video and 3D animation. The participation of 70 teachers in the course has showed the great interest of the teachers in getting up to date in order to make more dynamic their classes. On the other hand, each participant received a set of 30 Craftsman Handouts, which were employed in the teaching for the students in the ceramic art and in the connections with chemistry and physics, associated with materials. This program incorporated around 14000 high school students in São Paulo metropolitan region. In a second step, the teachers will visit São Carlos, in order to know the modern techniques of materials characterization, organized in 16 teacher-groups.

14. New Method for The Dosing of Structural Concrete.

The new dosing method was developed as a Master Thesis Theme under the orientation of Prof. Dr. João B. Baldo. The rationale behind the new method was the use of the principles of particle packing instead of pre-designed requirements of the concrete mixes (as usually done). The water amount determination was based on the parcels needed by each of the solid components of the concrete. Finally a judicious mixing order was employed. When these thred procedures were combined a structural concrete of the 40 MPa strength can be made using half of the cement normally used when the current methods are used. 15. Development of an automated device - to stimulated the recycling of used batteries for children and teenagers; project developed in association with Colégio São Carlos. 16. Josephson junction - In this period we have contributed with two chapters in books, one focused on the physical properties of ruthenocuprates, and the other focused on the magnetic properties of Josephson junction arrays devices. We have also developed an automated device to stimulated the recycling of used batteries for children and teenagers. Finally, we have participated in about eleven (11) interviews (newspapers, radio and TV) reporting to the general society our scientific and technological activities.

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17. Mini-Baja Project – The building of out of road monopost cars by engineering students and their participation on national competitions. Prof. Libardi of Lamarco is the Coordinator of this Program. 18. Aero-Design Project - The building of low scale airplane models by engineering students and their participation on national competitions. Prof. Libardi of Lamarco is the Coordinator of this Program. 19. Professional Enhancement Program – Prof. Baldo of Lamarco gave a Short Curse for 30 Engineers of Petrobrás ( Brazilian Oil Company) on Advanced Refractory Castables under the auspices of The Brazilian Ceramic Society.

20. Prof. Libardi of LAMARCO - participated on the Organization of Summer School in Materials Engineering for Students and High School Teachers of São Public and Private Schools - Period – January 19, 20 e 21 2005, at the Materials Engineering Department DEMa.

21. Diffusion in Newspapers, Radio and TV

Last, but no least, it is important to comment the interface of MCDCM with the media. In this period, information about Ceramic Materials was disseminated by means of the written press, radio and TV.

Newspapers from São Carlos (Primeira Página, A Folha, Notícias FIESP/CIESP and Tribuna), Araraquara (Imparcial), São José do Rio Preto (A Tribuna) and Bauru (Journal da Cidade) (covered news about MCDCM achievements in the Innovation Projects, emphasizing the development of materials made in partnership with CSN, White Martins (PRAXAIR), CBMM, and Faber-Castell. O Diário Oficial (Imprensa Oficial), O Estado de São Paulo and Folha de São Paulo, a newspaper of undoubtfully national coverage, also covered the achievements of MCDCM emphasizing also the advantages that the industrial partners of MCDCM are having with such a fruitful partnership, Magazines: Ciência Hoje, Terra da Gente (Rede Globo), Pesquisa (FAPESP), Veja and Época.

The technical developments obtained on Materials (photoluminescence, nanoparticles, and nanostructure) benefited the whole region, showing clearly the multiplying role of the University-Company interaction. As a consequence, EPTV, the TV Company covering the whole Central Region and National (Globo Reporter), Jornal da Band, Bom dia São Paulo (Rede Globo) of São Paulo state, produced as series of reports covering the activities of MCDCM and TV-Cabo Branco of the Paraíba, TV Piauí, TV Paraná and TV Ponta Negra of the Rio Grande do Norte.

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1.5 – Continuous Education and Dissemination Results ACTIVITY RESEARCH

SUBPROJECT

- School on Crystal Growth and Advanced Materials

- Workshop on Nanostructured Ceramics Interface

- Combining Nanostructured materials with alternative energy in order to improve device efficiency

“NANOPARTiCLES: OLD IDEAS WITH NEW USES”


Place: Universidade Federal da Paraíba, João Pessoa, PB

- Mini-course

“SINTERING STUDY BY THERMAL ANALYSIS”

Prof. Dr. Jürgen Blumm

(Netzsch Geratebau GmbH)

Place: Materials Science Department

- Seminars

“Simulation of Ceramics Structures”

Prof. Dr. Juan Andres


Castellon-Espanha


“Thin films ceramics”

Prof. Dr. Valerie Bouquet

Universitè de Rennes - France


“Nanostructured materials”

Profa. Dra. Emmanuelle Orhan

Universitè de Limmognes – France


Graduate

Undergraduate and

Graduate Level

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MCDCM/LIEC-UFSCar

Place: Institut of Chemistry (IQ/UNESP-Bauru)

- State of São Paulo – Workshop on Nanostructured Ceramics and Interface. This was the first workshop organized by the center in this subject. Researchers of Brazil and Europe showed recent researchers results in nanostructured ceramics and interfaces.

Prof. Dr. Edson R. Leite

MCDCM/LIEC-UFSCar

- SBPMat Meeting (MRS)

III SBPMat (MRS) meeting was composed of thematic symposia and interdisciplinary workshops, tackling frontier subjects and/or subjects interesting to our community.

Foz do Iguaçu, Paraná State, Brazil – Hotel Bourbon

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ACTIVITY RESEARCH

SUBPROJECT

The excellence of the activities of MCMDC has been recognized by the Brazilian radio, TV and written press. Several reports on such activities were publicized also with the objective of contributing to the diffusion, throughout the whole Brazilian society, of the science and technology developed by MCMDC. As examples of such public recognition and important diffusion support one can cite the newspapers:

- O Imparcial, Araraquara, SP.

- A Folha, São Carlos, SP.

- A Tribuna, São Carlos, SP.

- Primeira Página, São Carlos, SP.

- O Estado de São Paulo, São Paulo, SP.

- Folha de São Paulo, SP.

- A Tribuna, São J. Rio Preo, SP.

- Jornal da Cidade, Bauru, SP.

- Imprensa Oficial, SP.

As for magazines:

- Ciência Hoje.

- Terra da Gente.

- Veja.

- Época.

- Notícias, a magazine from FIESP and CIESP.

- Pesquisa, from FAPESP, one of the most active R&D supporting organizations in Brazil

As for the TV, MCMDC can rely upon TV Company covering the whole Central Region of São Paulo state, produced as series of reports covering the activities of MCDCM and TV-Cabo Branco of the Paraíba and TV Ponta Negra of the Rio Grande do Norte, TV Piauí, Globo Reporter, Bom Dia Brasil e Bom Dia São Paulo (Rede Globo), Jornal da Band (TV Bandeirantes) who has been helping in the public diffusion of a series of MCMDC achievements, either related with its basic research, or related to the industrial use of technologies developed by MCMDC.

Diffusion to the

Public

multidisciplinary center for the development of …

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