Patent ID: 6632761
Filing Date: 2003-10-14
Classification: C01B,C04B

Abstract:
A silicon carbide powder comprising a silicon carbide powder (A) which has a modal diameter of 1.7 to 2.7 &mgr;m and a silicon carbide powder (B) which has a modal diameter of 10.5 to 21.5 &mgr;m, at a particulate volume ratio (the volume of silicon carbide powder (A)/the volume of silicon carbide powder (A) and the volume of silicon carbide powder (B)) of 20% to 80%, whereina ratio (D90/D10) of a cumulative diameter that accounts for 90% of all volume of powder (D90) to a cumulative diameter that accounts for 10% of all volume of powder (D10) calculated according to particle size distribution in the silicon carbide powder (A) is 10 or less, and a ratio (D90/D10) of a cumulative diameter that accounts for 90% of all volume of powder (D90) to a cumulative diameter that accounts for 10% of all volume of powder (D10) calculated according to particle size distribution in the silicon carbide powder (B) is 10 or less.