Fabrication and physicochemical properties of particulate-reinforced precursor-derived Si-C-N ceramics

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概要

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• The present investigation reports the application of four different types of filler materials (Al2O3, Y2O3, SiC and Si3N4) for the preparation of particulate-reinforced composites (PRC) by precursor impregnation and pyrolysis (PIP) method. In the oxide filler systems, deterioration by crack formation was observed during repeated processing cycles. The large difference of the coefficient of thermal expansion between the oxide fillers and Si-C-N matrix is considered as the reasons for the deterioration. The PRC made with SiC filler showed the highest values of relative density, strength, Youngs modulus, hardness, and fracture toughness among the four types of PRC. The SiC-based PRC also offered the highest thermal mass stability and creep resistance.

• 公益社団法人 日本セラミックス協会の論文

著者

• LEE Sea-Hoon

  Korea Institute of Materials Science

• KIM Hai-Doo

  Korea Institute of Materials Science

• Lee Sea-hoon

  Korea Inst. Of Materials Sci.

関連論文

• Fabrication and physicochemical properties of particulate-reinforced precursor-derived Si-C-N ceramics
• Synthesis of mono-phase, hexagonal plate-like Al_4SiC_4 powder via a carbothermal reduction process(SiAlons and Non-oxides)
• Effects of SiO2 formed on SiC filler particulates on the thermal and mechanical properties of a SiC/Si–C–N composite
• Low temperature sintering of sub-micrometer scale SiC using spark plasma sintering

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