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ウエダ ヨシオ
Ueda Yoshio
上田 良夫 所属 追手門学院大学 理工学部 電気電子工学科 職種 教授 |
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| 言語種別 | 英語 |
| 発行・発表の年月 | 2011/08 |
| 形態種別 | 論文 |
| 査読 | 査読あり |
| 標題 | Surface damage characteristics of CFC and tungsten with repetitive ELM-like pulsed plasma irradiation |
| 執筆形態 | 共著・編著（代表編著を除く） |
| 掲載誌名 | JOURNAL OF NUCLEAR MATERIALS |
| 掲載区分 | 国外 |
| 出版社・発行元 | ELSEVIER SCIENCE BV |
| 巻・号・頁 | 415(1),pp.S55-S58 |
| 国際共著 | 国際共著 |
| 著者・共著者 | Y. Kikuchi,D. Nishijima,M. Nakatsuka,K. Ando,T. Higashi,Y. Ueno,M. Ishihara,K. Shoda,M. Nagata,T. Kawai,Y. Ueda,N. Fukumoto,R. P. Doerner |
| 概要 | Surface damage of carbon fiber composite (CFC) and tungsten (W) due to repetitive ELM-like pulsed plasma irradiation has been investigated by using a magnetized coaxial plasma gun. CX2002U CFC and stress-relieved W samples were exposed to repetitive pulsed deuterium plasmas with duration of similar to 0.5 ms, incident ion energy of similar to 30 eV, and surface absorbed energy density of similar to 0.3-0.7 MJ/m(2). Bright spots on a CFC surface during pulsed plasma exposures were clearly observed with a high-speed camera, indicating a local surface heating. No melting of a W surface was observed under a single plasma pulse exposure at energy density of similar to 0.7 MJ/m2, although cracks were formed. Cracking of the W surface grew with repetitive pulsed plasma exposures. Subsequently, the surface melted due to localized heat absorption. (C) 2010 Elsevier B.V. All rights reserved. |
| DOI | 10.1016/j.jnucmat.2010.12.019 |
| ISSN | 0022-3115 |