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

页码：137 / 140

页数：4

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