New T.B.Massalski. Binary Alloy Phase Diagrams. ASM International,...
Transcript of New T.B.Massalski. Binary Alloy Phase Diagrams. ASM International,...
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