Process for forming high density silicon carbide and products therefrom

Abstract From the Canadian patent

High density sintered silicon carbide articles are formed by first forming a green blank or billet out of powdered silicon carbide, heat treating the billet to cause it to lightly sinter and become partially densified shaping, the billet to the desired final dimensions and configuration and fully sintering and densifying the partially sintered shape by heat alone or by heat in the presence of silicon. The product of the process possesses high mechanical strength and may be very fine grained.