Hydrogen Blister Formation on Cold-Worked Tungsten with Layered Structure
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概要
- 論文の詳細を見る
Low-energy (${<}100$ eV) and high-flux (${>}10^{21}$ m-2s-1) hydrogen plasma exposures were performed on cold-worked powder metallurgy tungsten (PM-W), recrystallized cold-worked PM-W and hot-worked PM-W. Large blisters with a diameter of approximately 100–200 μm were observed only on the surface of cold-worked PM-W. The blister formation mechanism has not been clarified thus far. PM-W has a consisting of 1-μm-thick layers, which is formed by press-roll processing. A detailed observation of the cross section of those blisters shows for the first time that the blisters are formed by cleaving the upper layer along the stratified layer. These experimental results indicate that the manufacturing process of tungsten material is one of the key factors for blister formation on the tungsten surface.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2005-01-15
著者
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Sugimoto Takanori
Department Of Chemistry Tohoku University
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Nishijima Dai
Department Of Energy Engineering And Science Graduate School Of Engineering Nagoya University
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Ye Minyou
Max-planck-institut Fuer Plasmaphysik Euratom Association
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Takamura Shuichi
Department of Energy Engineering and Science, Graduate School of Engineering, Nagoya University, Furo-cho, Nagoya 464-8603, Japan
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Ohno Noriyasu
EcoTopia Science Institute, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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Ohno Noriyasu
EcoTopia Research Institute, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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Sugimoto Takanori
Department of Energy Engineering and Science, Graduate School of Engineering, Nagoya University, Furo-cho, Nagoya 464-8603, Japan
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TAKAMURA Shuichi
Department of Electrical and Electronic Engineering, Faculty of Engineering, Aichi Institute of Technology, Toyota 470-0392, Japan
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