Hydrogen behavior in damaged tungsten by high-energy ion irradiation
Hydrogen behavior in damaged tungsten by high-energy ion irradiation
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DOI：
10.1016/j.jnucmat.2008.12.213
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发表时间：
2009-04
影响因子：
3.1
通讯作者：
M. Fukumoto;H. Kashiwagi;Y. Ohtsuka;Y. Ueda;Y. Nobuta;J. Yagyu;T. Arai;M. Taniguchi;T. Inoue-T.-I
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文献类型：
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作者：
M. Fukumoto;H. Kashiwagi;Y. Ohtsuka;Y. Ueda;Y. Nobuta;J. Yagyu;T. Arai;M. Taniguchi;T. Inoue-T.-I
用氢-碳离子束和氚混合离子束研究了辐照损伤对氢在钨中捕获行为的影响。300和700keV的负氢离子束产生了辐射损伤。受辐射损伤的样品上形成的水泡的数量密度小于未损伤的样品。SIMS测量表明，注入后的氢主要被捕获在辐射损伤部位。这些结果表明，由于氢同位素在辐射损伤处的显著捕获，在晶界的氢积累大大减少。
Effects of radiation damage on the behavior of hydrogen trapped in tungsten were investigated using a mixed hydrogen–carbon ion beam and deuterium ion beam. Radiation damage was produced by 300 and 700keV negative hydrogen ion beams. The number density of blisters formed on the radiation-damaged samples was less than an undamaged sample. SIMS measurements showed that post-implanted deuterium was mainly trapped at radiation damage sites. These results suggest that hydrogen accumulation at the grain boundaries is greatly decreased due to significant trapping of hydrogen isotopes at radiation damage sites.