Prevention of hydrogen generation reaction with water vapor by surface modification of beryllides as advanced neutron multipliers
Prevention of hydrogen generation reaction with water vapor by surface modification of beryllides as advanced neutron multipliers
复制标题
通过铍化物表面改性作为先进中子倍增剂来防止与水蒸气发生氢反应
DOI：
10.1016/j.fusengdes.2017.01.033
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发表时间：
2017
影响因子：
1.7
通讯作者：
Jae
中科院分区：
文献类型：
--
作者：
M. Nakamichi;Jae
原型卵石组成的Be 12 V显示在冷却过程中没有包埋反应，成功地制造没有均匀化。发现这些Be 12 V原型卵石具有良好的抗氧化性。Be12V卵石表面的BeO层被发现作为一个保护屏障，防止氢生成反应。因此，评价了BeO层作为铍化物表面改性的效果。使用表面改性的卵石，在1273 K下重复（3次）进行24 h的制氢实验。通过这种表面改性，氢气的产生速率几乎降低到背景水平。因此，表面改性的Be 12 V卵石显示无氢生成反应，成功地制造。
Prototypic pebbles composed of Be12V showing no peritectic reaction during cooling were successfully fabricated without homogenization. These Be12V prototypic pebbles were found to have a good oxidation resistance. BeO layer on the surface of Be12V pebbles was found to act as a protective barrier preventing the hydrogen generation reaction. Thus, the effect of BeO layer as a surface modification of beryllide was evaluated. Using surface-modified pebbles, hydrogen generation experiments were repetitively (3 times) carried out at 1273 K for 24 h. The hydrogen generation rate was nearly reduced to the background level by this surface modification. Thus, surface-modified Be12V pebbles showing no-hydrogen generation reaction were successfully fabricated.