Deuterium permeation and thermal behaviors of amorphous silicon carbide coatings on steels

被引：40

作者：

Chikada, Takumi ^{[1
]}

Suzuki, Akihiro ^{[2
]}

Terai, Takayuki ^{[1
,3
]}

机构：

[1] Univ Tokyo, Sch Engn, Dept Nucl Engn & Management, Bunkyo Ku, Tokyo 1138656, Japan

[2] Univ Tokyo, Sch Engn, Nucl Profess Sch, Naka, Ibaraki 3191188, Japan

[3] Univ Tokyo, Sch Engn, Inst Engn Innovat, Bunkyo Ku, Tokyo 1138656, Japan

来源：

FUSION ENGINEERING AND DESIGN | 2011年 / 86卷 / 9-11期

关键词：

Hydrogen; Tritium permeation barrier; Coating; Silicon carbide; Magnetron sputtering; BARRIER DEVELOPMENT; TRITIUM; 316L;

D O I：

10.1016/j.fusengdes.2011.01.036

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

In this study, deuterium permeation measurements for 55316 and F82H steels coated with amorphous silicon carbide films by radio frequency magnetron sputtering are performed. The driving deuterium pressure dependence of the coated sample shows a large surface contribution. Deuterium trapping in the amorphous structure is suggested by the temporal change in the permeation flux. Permeation reduction factors of 10(3) are achieved with 1.5-mu m-thick coated F82H at 723-823 K; however, the coating degraded at 873 K. Cracks are generated in the coating because of the tensile stress derived from a large difference in the thermal expansion between the coating and the steel. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：2192 / 2195

页数：4

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