Decomposition kinetics study of zirconium hydride by interrupted thermal desorption spectroscopy

被引：26
|
作者：
Ma, Mingwang [1 ]
Liang, Li [1 ]
Tang, Binghua [1 ]
Xiang, Wei [1 ]
Wang, Yuan [1 ]
Cheng, Yanlin [1 ]
Tan, Xiaohua [1 ]
机构：
[1] China Acad Engn Phys, Inst Elect Engn, Mianyang 621900, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2015年 / 645卷
基金：
中国国家自然科学基金;
关键词：
Zirconium hydride; Thermal desorption spectroscopy; Desorption kinetics; Phase transforming; Phase diagram; HYDROGEN DESORPTION; THIN-FILMS; DEUTERIDE;
D O I：
10.1016/j.jallcom.2015.01.054
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Thermal desorption kinetics of zirconium hydride powder were studied using thermogravimetry and simultaneous thermal desorption spectroscopy. The activation energies for observed desorption peaks were estimated according to Kissinger relation. The intermediate phase composition was studied using X-ray diffraction by rapid cooling on different stages of heating. The origins of the peaks were described as the equilibrium hydrogen pressure of a number of consecutive phase regions that decomposition reaction passed through. The zirconium monohydride gamma ZrH was observed for extended periods of time at ambient conditions, which has been supposed to be metastable for a long time. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：S217 / S220
页数：4
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