Ion-irradiation effects of hydrogen absorption in palladium metal

Yoneda, Yasuhiro ; Tamura, Kazuhisa ; Abe, Hiroshi; Oshima, Takeshi; Morimoto, Ryo*; Uchida, Hirohisa*; Mizuki, Junichiro

The effect of ion irradiation on palladium (Pd) metal was investigated by hydrogen-absorption measurements, SEM microscopy and synchrotron X-ray diffraction. N irradiation was made with an acceleration energy 350 keV. The initial hydrogen absorption rate of the irradiated Pd was three times larger than that of non-irradiated Pd. The microscopic structure was investigated by using the pair-distribution function (PDF) obtained by X-ray diffraction. Although the average structure of the Pd was f.c.c, the Pd atoms displaced and two occupancy sites are revealed. This site occupancy is closely related with the hydrogen-absorption rate.

Language	:	English
Journal	:	Transactions of the Materials Research Society of Japan
Volume	:	33
Number	:	4
Pages	:	p.1053 - 1056
Publication Year/Month	:	2008/12
Meeting title	:	第18回日本MRS学術シンポジウム
Held date	:	2007/12
Location (city)	:	東京
Location (country)	:	日本
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Registration No. : BB20072766
JAEA Abstracts No. : 37000338
Paper Submission No. : 5367

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