Home / Store / Journals / Electronic Articles / Fusion Science and Technology / Volume 44 / Number 1
A. Hasegawa, S. Nogami, S. Miwa, K. Abe, T. Taguchi, N. Igawa
Fusion Science and Technology
Volume 44 / Number 1 / July 2003 / Pages 175-180
Format:electronic copy (download)
The mechanical properties of advanced SiC/SiC composite and polycrystalline, monolithic -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 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 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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