Silicon nitride compositions

Details Silicon nitride compositions Silicon nitride compositions

C - Chemistry, Metallurgy

04

B

C04B 35/584 (2006.01) C04B 35/56 (2006.01) F41H 5/04 (2006.01)

Patent

CA 2540048

The present invention provides silicon nitride with tungsten carbide additives in a sinterable material comprising silicon nitride and tungsten carbide, in which the silicon nitride content is a minimum of about 80% and wherein the total nitride component is about 28-40 w/w% N2, and further comprising about 1.5-3.5 w/w% AI, about 2-6 w/w% Y, about 1.5-7 w/w% W, and about 3-9 w/w%O2 which after sintering will produce ceramic bodies with a high degree of toughness suitable for armor applications.

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