Dehydrogenation of TiH2

被引：188

作者：

Bhosle, V ^{[1
]}

Baburaj, EG ^{[1
]}

Miranova, M ^{[1
]}

Salama, K ^{[1
]}

机构：

[1] Univ Houston, Dept Mech Engn, Houston, TX 77204 USA

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2003年 / 356卷 / 1-2期

关键词：

titanium hydride (TiH2); dehydrogenation; nanocrystalline;

D O I：

10.1016/S0921-5093(03)00117-5

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Hydrogen is a unique alloying element for titanium because it can be introduced into the metal to form solid solutions or stoichiometric compounds by exposure to the gas at elevated temperatures and removed by vacuum annealing. Studies on dehydrogenation of fine titanium hydride are important for several applications such as thermohydrogen processing of Ti and Ti based alloy components, hydrogen storage materials and bonding of metals and ceramics using TiH2. Effect of particle size on dehydrogenation of TiH2 is studied here, using thermal analysis along with structural investigations. Dehydrogenation of nanocrystalline hydride powder differs considerably from the micron size starting powder. A two step dehydrogenation process, (TiH2 --> TiHx --> alpha-Ti) where 0.7 < x < 1.1, is observed and thermal stability of TiHx at high temperatures is suggested. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：190 / 199

页数：10

共 17 条

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