Permeation of hydrogen through vanadium under helium ion irradiation

被引：5
|
作者：
Hatano, Y [1 ]
Nanjo, Y [1 ]
Hayakawa, R [1 ]
Watanabe, K [1 ]
机构：
[1] Toyama Univ, Hydrogen Isotope Res Ctr, Toyama 9308555, Japan
来源：
JOURNAL OF NUCLEAR MATERIALS | 2000年 / 283卷
关键词：
D O I：
10.1016/S0022-3115(00)00139-2
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Hydrogen permeation through vanadium was examined under helium ion irradiation. The upstream surface of a vanadium membrane was exposed to hydrogen gas at 673 K and 640 Pa, and the downstream surface was irradiated with 5 keV helium ions. No significant variation in the permeation rate was observed in the initial stage of irradiation. The permeation rate, however, started to decrease at a helium ion dose of 10(21) m(-2) with further irradiation. In this region, the permeation rate dropped immediately by intermission of irradiation and shot up by resumption. These results were successfully explained with a model that helium bubbles act as trapping sites of hydrogen and detrapping is enhanced under irradiation. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：868 / 871
页数：4
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