The 500 degrees C isothermal section of the phase diagram of the ternary Ho-Fe-Nb system

被引：5
作者：
Zhuang, YH
Qin, W
Zhou, HY
机构：
[1] Institute of Materials Science, Guangxi University, Nanning
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 1997年 / 248卷 / 1-2期
关键词：
ternary systems; Ho-Fe-Nb; phase diagrams;
D O I：
10.1016/S0925-8388(96)02493-0
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The 500 degrees C isothermal section of the Ho-Fe-Nb system was investigated by X-ray powder diffraction, differential thermal microanalysis and electron-probe microanalysis techniques. It consists of 10 single-phase regions, 18 two-phase regions and 9 three-phase regions. At 500 degrees C, the maximum solubilities of Nb in Ho2Fe17 and Ho in Fe2Nb and FeNb are about 2.0, 2.0 and 3.0 at.% respectively. In the Fe-Nb binary system, the composition ranges of the phases beta(Fe2Nb) and gamma(FeNb) were determined as 32.0 to 41.0 at.% Nb and 48.0 to 53.0 at.% Nb respectively. The other compounds, including the tetragonal compound HoFe11Nb, have no observable homogeneity ranges.
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收藏
页码：206 / 208
页数：3
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