Synergistic effect of displacement damage, helium and hydrogen of silicon carbide composite

被引：8

作者：

Hasegawa, A ^{[1
]}

Nogami, S ^{[1
]}

Miwa, S ^{[1
]}

Abe, K ^{[1
]}

Taguchi, T ^{[1
]}

Igawa, N ^{[1
]}

机构：

[1] Tohoku Univ, Dept Quantum Sci & Energy Engn, Sendai, Miyagi 9808579, Japan

来源：

FUSION SCIENCE AND TECHNOLOGY | 2003年 / 44卷 / 01期

关键词：

D O I：

10.13182/FST03-A329

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：

The mechanical properties of advanced SiC/SiC composite and polycrystalline, monolithic beta-SiC under dual- and triple-ions irradiation to I and 10 dpa at 800degreesC, 1000degrees C, and 1300degrees C were investigated by a Nano-indentation test. Preliminary microstructural analysis by transmission electron microscopy was performed. Hardness and elastic modulus changes in response to ion irradiation were observed, but synergistic effects on these mechanical properties were not significant. In contrast, microstructural observation of the composites after 10 dpa at 1000degrees C showed that cavity formation behavior was dependent on the material and the helium or hydrogen implanted mode. The effect of gas elements on cavity formation and the mechanical properties are discussed.

引用

页码：175 / 180

页数：6

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