Deuterium retention of boron-titanium and reduction of deuterium retention after helium ion irradiations

Hino, T.; Hashiba, Y.; Yamauchi, Y.; Nishimura, K.; Ashikawa, N.; Sagara, A.; Noda, N.; Komori, A.; Motojima, O.

Deuterium retention of boron-titanium and reduction of deuterium retention after helium ion irradiations

Hino, T.; Hashiba, Y.; Yamauchi, Y. et al.

Fusion Engineering and Design, 2010, 85(5), 655-660

Permalink : https://hdl.handle.net/2115/43900

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アクセス権	open access
URI	https://hdl.handle.net/2115/43900
タイトル	Deuterium retention of boron-titanium and reduction of deuterium retention after helium ion irradiations
著者	Hino, T. ; Hashiba, Y. ; Yamauchi, Y. ; Nishimura, K. ; Ashikawa, N. ; Sagara, A. ; Noda, N. ; Komori, A. ; Motojima, O.
著者名 Hino, T.
著者名 Hashiba, Y.
著者名 Yamauchi, Y.
著者名 Nishimura, K.
著者名 Ashikawa, N.
著者名 Sagara, A.
著者名 Noda, N.
著者名 Komori, A.
著者名 Motojima, O.
言語	英語
キーワード	Boron-titanium
	Titanium-boroid
	Boron
	Titanium
	Deuterium retention
	Desorption temperature
	Crystal structure
	Amorphous
発行日	2010-08
出版者	Elsevier B.V.
収録物名	Fusion Engineering and Design
巻(号)	85(5)
ページ	655-660
抄録	Deuterium ion irradiations with an ion with energy of 1.7 keV were conducted for boron-titanium (B-Ti) film prepared by electron beam evaporation and hot pressed titanium-boride, TiB2. The amount of retained deuterium was measured for these materials using a technique of thermal desorption spectroscopy. The amount of deuterium retained in TiB2 was comparable with that in B-Ti. Desorption peaks of deuterium in B-Ti were 470 and 620K, corresponding to a desorption in the low temperature regime observed in boron (B) and a desorption in titanium (Ti), respectively. The desorption peaks in TiB2 were 620K and 750K, which correspond to the desorption in Ti and that in the high temperature regime in B, respectively. The desorption temperature in B-Ti was approximately 100 K lower than that in TiB2. This difference is discussed based upon chemical bindings and crystal structures of B-Ti and TiB2. Irradiation of helium ion with energy of 5 keV was conducted for B-Ti after the deuterium ion irradiation. The amount of retained deuterium decreased and the desorption temperature shifted to the lower temperature regime, as the helium ion fluence increased. The shift to the low temperature regime is due to the enhancement of amorphous structure of B in B-Ti.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
PISSN	0920-3796
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1016/j.fusengdes.2010.03.008