| LaNi5Dx(x=0,0.3)化合物的中子粉末衍射研究 |
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| 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 |
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| 作者姓名： | 樊志剑 陈波 孙光爱 薛艳杰 陈东风 张晓安 |
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| 作者单位： | 1．中国工程物理研究院 ;核物理与化学研究所，四川 ;绵阳 621900； ;2. ; 中国原子能科学研究院 ;核物理研究所，北京 102413 ; |
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| 基金项目： | 中国工程物理研究院科学技术基金资助项目(20050212) |
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| 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。
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| 关 键 词： | 5')" >LaNi5, 晶体结构, 中子粉末衍射 |
| 文章编号： | 1000-6931（2006）01-0111-05 |
| 收稿时间： | 2004-04-24 |
| 修稿时间： | 2004-04-242004-10-23 |
Investigation of Compounds LaNi5Dx (x=0, 0.3) by Means of Neutron Powder Diffraction |
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| FAN Zhi-jian,CHEN Bo,SUN Guang-ai,XUE Yan-jie,CHEN Dong-feng,ZHANG Xiao-an. 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 |
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| Authors: | FAN Zhi-jian CHEN Bo SUN Guang-ai XUE Yan-jie CHEN Dong-feng ZHANG Xiao-an |
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| Affiliation: | 1. China Academy of Engineering Physics, P.O.Box 919-213, Mianyang 621900, China;2. China Institute of Atomic Energy, P.O.Box 275-30, Beijing 102413, China ; |
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| Abstract: | The structural properties of intermetallic compound LaNi_(5) and its deuteride LaNi_(5)D_(0.3) were studied by means of neutron powder diffraction.The data analysis of(LaNi_(5)D_(0.3)) 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.LaNi_(5)D_(0.3) is crystallized in the space group P6/mmm as well as LaNi_(5) and the 12n site is occupied by D atom in it. |
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| Keywords: | LaNi_5 crystallographic structure neutron powder diffraction |
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