The Tb-Re-B system: Phase equilibria and crystal structures

被引：0
作者：
Mykhalenko, SI [1 ]
Kuz'ma, YB [1 ]
机构：
[1] Ivan Franko State Univ Lviv, UA-290005 Lviv, Ukraine
来源：
POLISH JOURNAL OF CHEMISTRY | 2000年 / 74卷 / 02期
关键词：
terbium; rhenium; boron; boride; phase diagram; crystal structure;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The phase diagram at 1270 K of the Tb-Re-B system is constructed by X-ray analysis. The existence of the earlier known compounds is confirmed: Tb3ReB7 (Er3CrB7 structure type), TbReB4 (YCrB4 structure type, refined lattice parameters a = 5.9776(4), b = 11.5640(9), c = 3.6058(3) Angstrom) and Tb2ReB6 (Y2ReB6 structure type, refined lattice parameters a = 9.206(4), b = 11.560(4), c = 3.669(1) Angstrom). New ternary compounds are found and their crystal structures are determined: Tb8Re13-xB12 (DRON-3M powder diffractometer, R (3) over bar m space group, Pr8Re3-xB12, structure type, a = 10.6233(6), c = 14.318(1) Angstrom, N-hkl = 286, R = 0.095) and TbepsilonRe4B4 (a single crystal method, the tetragonal incommensurate structure, a = 10.624(9), c = 38.29(9) Angstrom).
引用
收藏
页码：163 / 171
页数：9
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