Powder diffraction refinement of the Co2Al5 structure

被引:33
作者
Burkhardt, U
Ellner, M
Grin, Y
Baumgartner, B
机构
[1] Max Planck Inst Met Forsch, D-70174 Stuttgart, Germany
[2] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany
[3] STOE Applicat Lab, D-64295 Darmstadt, Germany
关键词
D O I
10.1017/S0885715600010022
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The structure of Co2Al5 (hP28, P6(3)/mmc) was refined by means of Rietveld method. The shortest Co-Al distance amounts 2.338 Angstrom. Co2Al5 shows a homogeneity range between Co29Al71 and Co27.5Al72.5 at 1125 K. The concentration dependence of lattice parameters was also measured. The axial ratio c/a increases with increasing mole fraction of aluminum. (C) 1998 International Centre for Diffraction Data. [S0885-7156(98)00701-5]
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页码:159 / 162
页数:4
相关论文
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[21]  
WELLS AF, 1975, STRUCTURAL INORGANIC, P1047