原子能科学技术2012，Vol.46Issue(z1)：23-26,4.
NdFe10.5Mo1.5微观结构变温中子衍射研究
Neutron Diffraction Study on Microstructure of NdFe10.5 Mo1.5 at Different Temperatures
摘要
Abstract
The crystal and magnetic structure of NdFeio.5 M01.5 intermetallic compound was studied by neutron powder diffraction at room temperature and low temperature (77 K). The data were analyzed by the Rietveld method. The results of neutron diffraction indicate that the lattice parameter a increases and lattice parameter c decreases for NdFeio. 5 M01.5 compounds when the temperature decreases from room temperature to 77 K. The thermal expansion anomalies of NdFe10. sMoL5 could not be explained only by the Fe-Fe interatomic distances and the number of the nearest neighbors of Fe. This implies that not only the direct interaction of Fe-Fe contributes to the phenomenon, Nd-Fe and Nd-Nd indirect interaction also have a contribution to the thermal expansion anomalies.关键词
中子衍射/金属间化合物/微观结构Key words
neutron diffraction/ intermetallic compound/ microstructure分类
数理科学引用本文复制引用
李峻宏,刘蕴韬,李天富,张莉,韩文泽,高建波,陈东风,杜红林..NdFe10.5Mo1.5微观结构变温中子衍射研究[J].原子能科学技术,2012,46(z1):23-26,4.基金项目
国家重点基础研究发展计划资助项目(2010CB833105) （2010CB833105）
国家自然科学基金资助项目(11175265) （11175265）
