Thermal expansion anomalies in R2Fe17 compounds before and after nitrogenation (R: Y and Sm)

被引:4
作者
Ezekwenna, PC
Shumsky, M
James, WJ
lHeritier, P
机构
[1] ECOLE NATL SUPER PHYS GRENOBLE,LMGP,URA 1109 CNRS,F-38402 ST MARTIN DHER,FRANCE
[2] OBAFEMI AWOLOWO UNIV,CERD,IFE,NIGERIA
[3] UNIV MISSOURI,GRAD CTR MAT RES,ROLLA,MO 65401
关键词
samarium iron nitride; yttrium iron nitride; X-ray dilatometry; thermal expansion;
D O I
10.1016/S0304-8853(96)00678-6
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The lattice expansion of R2Fe17 and R2Fe17N3 compounds (R: Y and Sm) have been measured by X-ray diffractometry from 12 K up to 873 K. Upon nitrogenation, the low temperature anomalous expansion along the c-axis disappears; nevertheless, the spontaneous volume magnetostriction is larger.
引用
收藏
页码:149 / 153
页数:5
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