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

Akira Hasegawa; S. Nogami; S. Miwa; K. Abe; T. Taguchi; N. Igawa

doi:10.13182/FST03-A329

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

Akira Hasegawa, S. Nogami, S. Miwa, K. Abe, T. Taguchi, N. Igawa

ENG - Quantum Science and Energy Engineering

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

The mechanical properties of advanced SiC/SiC composite and polycrystalline, monolithic β-SiC under dual- and triple-ions irradiation to 1 and 10 dpa at 800°C, 1000°C, and 1300°C were investigated by a Nano-indentation test. Preliminary microstructural analysis is 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 1000°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.

Original language	English
Pages (from-to)	175-180
Number of pages	6
Journal	Fusion Science and Technology
Volume	44
Issue number	1
DOIs	https://doi.org/10.13182/FST03-A329
Publication status	Published - 2003 Jul

ASJC Scopus subject areas

Civil and Structural Engineering
Nuclear and High Energy Physics
Nuclear Energy and Engineering
Materials Science(all)
Mechanical Engineering

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AU - Hasegawa, Akira

AU - Nogami, S.

AU - Miwa, S.

AU - Abe, K.

AU - Taguchi, T.

AU - Igawa, N.

PY - 2003/7

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N2 - The mechanical properties of advanced SiC/SiC composite and polycrystalline, monolithic β-SiC under dual- and triple-ions irradiation to 1 and 10 dpa at 800°C, 1000°C, and 1300°C were investigated by a Nano-indentation test. Preliminary microstructural analysis is 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 1000°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.

AB - The mechanical properties of advanced SiC/SiC composite and polycrystalline, monolithic β-SiC under dual- and triple-ions irradiation to 1 and 10 dpa at 800°C, 1000°C, and 1300°C were investigated by a Nano-indentation test. Preliminary microstructural analysis is 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 1000°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.

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

Abstract

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