Preparation of hydrogen permeation barrier by reaction of O2 and zirconium hydride

被引：0

作者：

Chen, Weidong ^{[1
,2
]}

Yan, Shufang ^{[1
]}

Liu, Xiangdong ^{[1
]}

Fan, Xiujuan ^{[1
]}

Wang, Zhigang ^{[1
]}

Xu, Zhigao ^{[3
]}

机构：

[1] College of Materials Science and Engineering, Inner Mongolia University of Technology

[2] Division of Mineral Resources, Metallurgy and Materials, General Research Institute for Nonferrous Metals

[3] Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute of Technology

来源：

Xiyou Jinshu/Chinese Journal of Rare Metals | 2014年 / 38卷 / 01期

关键词：

Hydrogen permeation barrier; Oxidation in situ; Oxide film; Zirconium hydride;

D O I：

10.13373/j.cnki.cjrm.2014.01.011

中图分类号：

学科分类号：

摘要：

Hydrogen permeation barrier on the surface of zirconium hydride was prepared by oxidation in situ. The influences of oxidation parameters on the mass gain percentage of oxide film were investigated. The morphology, phase structure and damp property of oxide film were analyzed. The results indicated that oxidation temperature had a great influence on oxidation rate. The growth speed of oxide film was slow when oxidation temperature was below 450°C. The partial oxygen pressure had little effect on oxidation rate. The growth speed of oxide film increased with the increase of partial oxygen pressure and oxidation temperature. A parabolic law was observed in the curves of mass gain of the oxide film with oxidation time increasing. The main phase of oxide film was monoclinic and tetragonal ZrO2. Hydrogen lose of zirconium hydride with oxide film was below 0.2% in dehydrogenation processes at 650°C for 50 h.

引用

页码：71 / 76

页数：5

共 17 条

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