Method of producing a silicon carbide sintered compact

Details Method of producing a silicon carbide sintered compact Method of producing a silicon carbide sintered compact

1983-03-28

1985-08-27

Bell, Mark L.

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

264 65, 501 88, 501 90, C04B 3556

Patent

active

045377359

ABSTRACT:
In a method of producing a silicon carbide sintered compact comprising steps of placing silicon carbide fines, a sintering additive and a shaping additive as required into a dispersing medium solution to form a supensoid, sieving operation on said suspensoid, forming a green shape from powders obtained in said sieving operation, and pressureless sintering process; an improvement characterized is that solid content comprising said silicon carbide fines and sintering additive is limited within a range of 10-50% by volume to said suspensoid, and that in the sieving operation, the suspensoid is passed through a sieve having an opening less than 65 .mu.m under a pressure differential between before and after the sieve to remove coarse particles in the silicon carbide fines, sintering additive and others to form silicon carbide sintered compact having a high strength.

REFERENCES:
patent: 4342837 (1982-08-01), Suzaki et al.

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