LaNi5Dx(x=0, 0.3)化合物的中子粉末衍射研究

樊志剑, 陈 波, 孙光爱, 薛艳杰, 陈东风, 张晓安

樊志剑, 陈 波, 孙光爱, 薛艳杰, 陈东风, 张晓安. LaNi5Dx(x=0, 0.3)化合物的中子粉末衍射研究[J]. 原子能科学技术, 2006, 40(1): 111-115. DOI: 10.7538/yzk.2006.40.01.0111
引用本文: 樊志剑, 陈 波, 孙光爱, 薛艳杰, 陈东风, 张晓安. LaNi5Dx(x=0, 0.3)化合物的中子粉末衍射研究[J]. 原子能科学技术, 2006, 40(1): 111-115. DOI: 10.7538/yzk.2006.40.01.0111
Investigation of Compounds LaNi5Dx(x=0, 0.3) by Means of Neutron Powder Diffraction[J]. Atomic Energy Science and Technology, 2006, 40(1): 111-115. DOI: 10.7538/yzk.2006.40.01.0111
Citation: Investigation of Compounds LaNi5Dx(x=0, 0.3) by Means of Neutron Powder Diffraction[J]. Atomic Energy Science and Technology, 2006, 40(1): 111-115. DOI: 10.7538/yzk.2006.40.01.0111

LaNi5Dx(x=0, 0.3)化合物的中子粉末衍射研究

详细信息
  • 中图分类号: TG115.23

Investigation of Compounds LaNi5Dx(x=0, 0.3) by Means of Neutron Powder Diffraction

  • 摘要: 利用中子粉末衍射实验研究了LaNi5、LaNi5D0.3的晶体结构。在对LaNi5D0.3的中子粉末衍射数据进行分析时,考虑了吸、放气过程中引入的微应变会使得衍射轮廓产生各向异性展宽的因素,从而使拟合效果取得较明显的改善。与LaNi5一样,LaNi5D0.3的空间群仍为P6/mmm。LaNi5D0.3中氘原子占据12n位。

     

    Abstract: The structural properties of intermetallic compound LaNi5 and its deuteride LaNi5D0.3 were studied by means of neutron powder diffraction. The data analysis of LaNi5D0.3 deuteride was performed taking into account the anisotropic diffraction line broadening due to microstrain introduced during the hydrogenation dehydrogenation cycles. Therefore, the fit to experimental data is achieved. LaNi5D0.3 is crystallized in the space group P6/mmm as well as LaNi5 and the 12n site is occupied by D atom in it.

     

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出版历程
  • 收稿日期:  2004-04-23
  • 修回日期:  2004-10-22
  • 刊出日期:  2006-01-19

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