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
来源：
POWDER DIFFRACTION | 1998年 / 13卷 / 03期
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]
引用
收藏
页码：159 / 162
页数：4
相关论文
共 21 条
[1]  
Akselrud L. G., 1989, 12 EUR CRYSTALLOGRAP, V3, P155
[2]   THE STRUCTURE OF FEAL3 .1. [J].
BLACK, PJ .
ACTA CRYSTALLOGRAPHICA, 1955, 8 (01) :43-48
[3]   THE STRUCTURE OF FEAL3 .2. [J].
BLACK, PJ .
ACTA CRYSTALLOGRAPHICA, 1955, 8 (03) :175-182
[4]  
Bradley AJ, 1938, Z KRISTALLOGR, V99, P480
[5]  
Bradley AJ, 1939, J I MET, V64, P81
[6]   LIMITATION OF COORDINATION SPHERE AND DETERMINATION OF COORDINATION COEFFICIENT IN CRYSTAL STRUCTURES [J].
BRUNNER, GO ;
SCHWARZENBACH, D .
ZEITSCHRIFT FUR KRISTALLOGRAPHIE KRISTALLGEOMETRIE KRISTALLPHYSIK KRISTALLCHEMIE, 1971, 133 :127-+
[7]   STRUCTURE REFINEMENT OF THE IRON-ALUMINUM PHASE WITH THE APPROXIMATE COMPOSITION FE2AL5 [J].
BURKHARDT, U ;
GRIN, Y ;
ELLNER, M ;
PETERS, K .
ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1994, 50 :313-316
[8]  
Burkhardt U., 1996, POWDER DIFFR, V11, P123
[9]   CRYSTAL STRUCTURE OF HEXAGONAL RH2AL5 [J].
EDSHAMMAR, LE .
ACTA CHEMICA SCANDINAVICA, 1967, 21 (03) :647-+
[10]  
ELLNER M, 1990, Z METALLKD, V81, P847
123