Neutron diffraction study of the deuterides of Zr0.9Ti0.1MnCr Laves phase alloy

被引：6
|
作者：
Sun, Kai
Gu, Xiumei
Wu, Erdong [1 ]
Liu, Yuntao
Wang, Hongli
机构：
[1] Chinese Acad Sci, Met Res Inst, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
[2] China Inst Atom Energy, Beijing 102413, Peoples R China
来源：
PHYSICA B-CONDENSED MATTER | 2006年 / 385卷
基金：
中国国家自然科学基金;
关键词：
Laves phase; hydrogen storage alloy; neutron diffraction; structure;
D O I：
10.1016/j.physb.2006.05.302
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The structures of three deuterides with different D contents for C14-type Laves phase Zr0.9Ti0.1MnCr alloy are studied by neutron and X-ray diffraction. A saturated deuteride containing similar to 3.5 D per mole of alloy is formed at 500 kPa. The structures of the deuterides are similar to that of ZrMn2D3 with all D atoms in the interstices formed by two Zr/Ti and two Mn/Cr atoms. The lattice constants of a deuteride formed at desorption stage appear to be larger than that of the saturated deuteride with higher D concentration. A solid solution containing similar to 0.1 D per mole of alloys is formed after de-hydrogenation. The remaining D atoms are in the more stable sites, which possess greater atom affinity and larger interstitial size. Strong diffuse scattering apparently due to hydrogen-induced amorphization has been observed in the diffraction patterns of the deuterides. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：137 / 140
页数：4
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