new t.b.massalski. binary alloy phase diagrams. asm international,...
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T.B.Massalski. Binary Alloy Phase Diagrams.
ASM International, 1990.
T.B.Massalski. Binary Alloy Phase Diagrams.
ASM International, 1990.
P.Villars, L.D.Calvert. Pearson´s Handbook of Crystallographic Data for Intermetallic Phases. ASM International, v.1 a v.4, 1997.
P.Villars, L.D.Calvert. Pearson´s Handbook of Crystallographic Data for Intermetallic Phases. ASM International, v.1 a v.4, 1997.
Grupos espaciais
International Tables for X-ray crystallography 230 grupos
Grupos espaciais
Ex: P4mm (#99)
Wyckoff
position8g x, y, z -x, -y, z -x, y, z x, -y, z
y, x, z -y, -x, z -y, x, z y, -x, z
4f x, 1/2, z -x, 1/2, z 1/2, x, z 1/2, -x, z
4e x, 0, z -x, 0, z 0, x, z 0, -x, z
4d x, x, z -x, -x, z -x, x, z x, -x, z
2c 1/2, 0, z 0, 1/2, z
1b 1/2, 1/2, z
1a 0, 0, za b
c
PowderCell 2 .0
átomo posição
Wyckoff
x y z
A 1a 0 0 0,15
B 1b 1/2 1/2 0,4
C 2c 1/2 0 0,6
D 4f 0,8 1/2 0,3
International Tables for X-ray crystallography
ABC2D4
BDEC – Base de Dados de Estruturas Cristalinas (CAPES)
fichas JCPDS ICDD – International Centre for Diffraction Data
d (Å) I (%)
3,046 100
2,638 30
1,866 30
1,591 22
4,309 10
Exercício – amostra X
d (Å) I (%)
3,046 100
2,638 30
1,866 30
1,591 22
4,309 10
Método Hanawalt