diagramas de fasemunozv/teaching/tecnologia materiales... · 2007. 1. 31. · diagramas de fase...

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VICENTE MUÑOZ SANJOSÉ

Diagramas de Fase

Permiten un prediseño de la experiencia

Permiten una explicación inicial de los resultados y/o indican los caminos para modificarlos

Los diagramas de fases pueden ser :

Temperatura - Composición ( en general a p.atm.)Temperatura - PresiónPresión - Composición

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The Ni-Cu binary phase diagram

T

% Cu 100

Liquid (L)

L + S

Solid (S)

0

Simple Binary Phase Diagrams

The simplest binary phase diagram is that in which there is perfect solid solubility

Nickel and copper are mutually soluble according to the Hume-Rothery rules for the formation of intermetallics

Since copper and nickel are FCC with almost the same lattice parameter a two phase mixture is not expected

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AComposition

B

T

α + β

α + L β + L

L

α β

More Complex Phase Diagrams

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Algunos casos significativos. Aplicaciones y consideraciones generales

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.

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Método de Bridgman

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Diagrama de fases del In-Se

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InSe Método Bridgman

Intensity (%)

2 θ (°)

0 5 10 15 20 25 30 35 40 45 500

10

20

30

40

50

60

70

80

90

100

(10.63,23.2)0,0,3

(21.35,71.7)0,0,6

(25.93,100.0)1,0,1

(26.67,68.2)1,0,-2

(29.46,50.1)1,0,4

(31.40,30.0)1,0,-5

(32.27,3.6)0,0,9

(36.12,32.4)1,0,7

(38.82,64.8)1,0,-8

(43.50,3.6)0,0,12

(44.72,53.6)1,0,10

(45.28,77.9)2,-1,0

(46.65,2.5)2,-1,3

(47.90,22.5)1,0,-11

InSe

Semiconductores laminares III-VI

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InSe Método Bridgman

Intensity (%)

2 θ (°)

0 5 10 15 20 25 30 35 40 45 500

10

20

30

40

50

60

70

80

90

100

(10.63,23.2)0,0,3

(21.35,71.7)0,0,6

(25.93,100.0)1,0,1

(26.67,68.2)1,0,-2

(29.46,50.1)1,0,4

(31.40,30.0)1,0,-5

(32.27,3.6)0,0,9

(36.12,32.4)1,0,7

(38.82,64.8)1,0,-8

(43.50,3.6)0,0,12

(44.72,53.6)1,0,10

(45.28,77.9)2,-1,0

(46.65,2.5)2,-1,3

(47.90,22.5)1,0,-11

InSe


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Método Bridgman


GaSe

Ga

γ -Ga 2 S

β -G a 2 S

α -Ga 2 S

L 1 L 2

L 1 + L 2

β -Ga 4 S

0 1 0 2 0 3 0 4 0 5 0 6 0 7 0SA t o mic P e r c en t G a

0

1 0 0

2 0 0

3 0 0

4 0 0

5 0 0

6 0 0

7 0 0

8 0 0

9 0 0

1 0 0 0

1 1 0 0

1 2 0 0

1 3 0 0

1 4 0 00 1 0 2 0 3 0 4 0 5 0 6 0 7 0

GaS GaTe

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Diagrama de fases Zn-P

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Zn3P2 PVT

Crecimiento cristalino y caracterizaciónde materiales semiconductores

Bridgmanno

estequiométrico

Intensity (%)

2 θ (°)

0 10 20 30 40 50 60 70 80 90 100 110 1200

10

20

30

40

50

60

70

80

90

100

(37.44,26.7)1,0,1

(42.58,0.2)1,1,0(45.30,0.9)

0,0,2

(55.15,29.7)1,0,2

(61.80,1.1)2,0,0

(63.92,0.1)1,1,2

(66.52,36.3)2,0,1

(74.54,51.6)2,1,1

(78.43,18.6)1,0,3

(79.87,70.0)2,0,2

(87.47,60.9)2,1,2

(93.14,100.0)2,2,0

(100.76,34.7)0,0,4

(101.24,73.1)2,0,3

(105.12,18.2)3,0,1

(108.57,2.4)1,0,43,1,0

(109.07,30.6)2,1,3

(110.58,0.0)2,2,2

(113.12,0.2)3,1,1

(118.90,39.7)3,0,2

1 1 7 3

1 0 4 0

5 59 8 0

8 5 0

4 1 6

9 9 0

3 . 7

0 . 6 6

L

Z n

0 1 0 2 0 3 0 4 0 5 0 6 0 7 0

PA t o m ic P e r c e n t Z n

3 0 0

4 0 0

5 0 0

6 0 0

7 0 0

8 0 0

9 0 0

1 0 0 0

1 1 0 0

1 2 0 0

0 1 0 2 0 3 0 4 0 5 0 6 0 7 0

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Diagrama de fases Cd-Te

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CdTeMétodo

Bridgman

Materiales II-VI

diagramas de fasemunozv/teaching/tecnologia materiales... · 2007. 1. 31. · diagramas de fase...

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