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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 | 1998/10 |
| 形態種別 | 論文 |
| 査読 | 査読あり |
| 標題 | Erosion and surface morphology of graphite materials under high flux beam 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 | 258(Pt.A),pp.628-633 |
| 著者・共著者 | Y Ueda,T Sugai,K Shiota,Y Ohtsuka,Y Isobe,M Nishikawa |
| 概要 | Surface morphology and its relation to the erosion mechanism of graphite materials (pyrolytic graphite (PG) and isotropic graphite) irradiated by high flux beams were studied. The irradiation was made by a 5 keV Ar beam with a maximum flux of 1.3 x 10(21) Ar/m(2) s with irradiation angles and fluences, and sample temperatures as experimental parameters. In the case of PG, the surface morphology was different between irradiation at RT (physical sputtering) and at elevated temperatures (1980 K, radiation enhanced sublimation (RES)). In addition, irradiation at oblique incidence (60 degrees) tended to Batten the surface at RT, while at 1980 It the surface roughness developed to some extent. No clear flux dependence of the surface morphology was observed at 1980 K as long as the mean eroded depth was similar, though the RES yield was flux-dependent(decrease with flux). |
| DOI | 10.1016/S0022-3115(98)00111-1 |
| ISSN | 0022-3115 |
| NAID | 80010706083 |