Silicon carbide matrix composite material, process for...

Details Silicon carbide matrix composite material, process for... Silicon carbide matrix composite material, process for...

2007-06-26

2007-06-26

Group, Karl (Department: 1755)

Compositions: ceramic

Ceramic compositions

Carbide or oxycarbide containing

C501S090000

Reexamination Certificate

active

10518646

ABSTRACT:
Silicon carbide matrix composite material (1) comprises silicon carbide matrix (2) as a host. The silicon carbide matrix (2) comprises first silicon carbide phase (3) of 0.1 to 10 μm average crystal grain diameter and second silicon carbide phase (4) of 0.01 to 2 μm average crystal grain diameter. In interstices of silicon carbide crystal grains constituting the silicon carbide matrix (2), liberated silicon phase (5) amounting to, for example, 5 to 50 mass % based on the composite material (1) is present continuously in network form. This fine structure enables realizing high strength and high toughness of the silicon carbide composite material (1).

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Kameda, Tsuneji et al. “Development of Continuous SiC Fiber-Reinforced Reaction Sintered SiC Matrix Composite”, Journal of the Ceramic Society of Japan, vol. 107, No. 4, pp. 327-334, with English abstract, 1999.

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