Mechanical properties of SiC/SiC composite with magnesium–silicon oxide interphase

A SiC fiber reinforced SiC composite with magnesium–silicon-based oxide interphase was fabricated by the chemical vapor infiltration process and its mechanical properties were evaluated. An interphase was prepared on the advanced SiC fiber, Tyranno SA, using the alkoxide method. The tensile strength...

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Bibliographic Details
Published in:Journal of nuclear materials 2007-08, Vol.367, p.725-729
Main Authors: Igawa, N., Taguchi, T., Yamada, R., Ishii, Y., Jitsukawa, S.
Format: Article
Language:English
Subjects:
Applied sciences
Controled nuclear fusion plants
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Fission nuclear power plants
Fuels
Installations for energy generation and conversion: thermal and electrical energy
Nuclear fuels
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Summary:A SiC fiber reinforced SiC composite with magnesium–silicon-based oxide interphase was fabricated by the chemical vapor infiltration process and its mechanical properties were evaluated. An interphase was prepared on the advanced SiC fiber, Tyranno SA, using the alkoxide method. The tensile strengths of SiC fiber with the Mg–Si–O coating retained at 85% or higher compared to uncoated-unheated fiber after heating below the 1300 °C, while strength were slightly degraded to 80% after heating at 1400 °C. The composite showed ductile failure behavior and the fiber pull-out effect was observed in the fracture surface of the composite.
ISSN:0022-3115
1873-4820
DOI:10.1016/j.jnucmat.2007.03.091