Helium retention and surface morphology of oxidized vanadium alloy

Yamauchi, Y.; Oku, D.; Hino, T.; Shibayama, T.; Nobuta, Y.; Nagasaka, T.; Muroga, T.

Helium retention and surface morphology of oxidized vanadium alloy

Yamauchi, Y.; Oku, D.; Hino, T. et al.

Journal of Nuclear Materials, 2011, 417(1-3), 327-329

Permalink : https://hdl.handle.net/2115/47978

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アクセス権	open access
URI	https://hdl.handle.net/2115/47978
タイトル	Helium retention and surface morphology of oxidized vanadium alloy
著者	Yamauchi, Y. ; Oku, D. ; Hino, T. ; Shibayama, T. ; Nobuta, Y. ; Nagasaka, T. ; Muroga, T.
e-Rad_Researcher 80312388 著者名 Yamauchi, Y.
著者名 Oku, D.
著者名 Hino, T.
著者名 Shibayama, T.
著者名 Nobuta, Y.
著者名 Nagasaka, T.
著者名 Muroga, T.
言語	英語
キーワード	Helium retention
	oxidation
	vanadium alloy
	thermal desorption
	blister formation
発行日	2011-10-01
出版者	Elsevier B.V.
収録物名	Journal of Nuclear Materials
巻(号)	417(1-3)
ページ	327-329
抄録	The effects of the surface oxidation on the helium desorption and retention behaviors of vanadium alloy were investigated. V-4Cr-4Ti alloy, which was thermally oxidized at 873 K for 15 minutes with 0.05 Pa, was irradiated by helium ions with energy of 5 keV at room temperature. Then, the helium desorption and retention behaviors were evaluated using a technique of thermal desorption spectroscopy. The changes in surface structures by the irradiation were also evaluated. Helium desorption behavior in low temperature region were significantly changed by the oxidation. Helium desorption around 700 K became large for the oxidized sample. The amount of retained helium and the blister size in the oxidized sample were smaller than of those in the non-oxidized one. These results indicate that the surface oxidation significantly affects the helium retention and desorption behaviors of the vanadium alloy.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
PISSN	0022-3115
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1016/j.jnucmat.2010.12.103