| Hydrogen desorption behaviors of zirconium hydride in oxygen containing atmosphere |
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| 引用本文： | 陈伟东 王建伟 王力军 卢世刚. Hydrogen desorption behaviors of zirconium hydride in oxygen containing atmosphere[J]. 中国有色金属学会会刊, 2007, 17(A02): 945-948 |
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| 作者姓名： | 陈伟东 王建伟 王力军 卢世刚 |
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| 作者单位： | Division of Mineral Resources, Metallurgy and Materials, General Research Institute for Nonferrous Metals, Beijing 100088, China |
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| 基金项目： | Project（50674015） supported by the National Natural Science Foundation of China |
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| 摘 要： | Hydrogen desorption behaviors of zirconium hydride at temperature range of 100-900 ℃in mixture gases of helium and oxygen was studied by gas phase analysis（GPA）. Meanwhile, the morphologies of the oxide scale formed on the surface of zirconium hydride were analyzed by scanning electron microscopy（SEM）. The hydrogen desorption is retarded effectively when zirconium hydride is exposed to an oxygen containing atmosphere. Hydrogen desorption in mixed gas of helium and oxygen starts at 525℃ and reaches maximum at 660℃ and ends eventually at 800 ℃. No hydrogen desorption is found at the temperature range from 800℃ to 900℃. An oxide scale with approximately 20 μm in thickness formed on the surface of zirconium hydride acts as an effective diffusion barrier.
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| 关 键 词： | 氢化锆 气相分析 氢解吸附作用 氧化物 |
| 收稿时间： | 2007-07-15 |
| 修稿时间： | 2007-09-10 |
Hydrogen desorption behaviors of zirconium hydride in oxygen containing atmosphere |
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| CHEN Wei-dong, WANG Jian-wei, WANG Li-jun, LU Shi-gang. Hydrogen desorption behaviors of zirconium hydride in oxygen containing atmosphere[J]. Transactions of Nonferrous Metals Society of China, 2007, 17(A02): 945-948 |
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| Authors: | CHEN Wei-dong WANG Jian-wei WANG Li-jun LU Shi-gang |
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