Method of manufacturing a dense silicon carbide ceramic

Details Method of manufacturing a dense silicon carbide ceramic Method of manufacturing a dense silicon carbide ceramic

1980-10-03

1982-03-09

Meros, Edward J.

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

501 90, C04B 3556

Patent

active

043188761

ABSTRACT:
A method of manufacturing a dense silicon carbide ceramic includes heat treating an alpha silicon powder in a vacuum to between 1200.degree. and 1400.degree. C., adding a boron powder either before or after heat treating, then, adding a substance containing carbon, milling the mixture, compressing the milled mixture into a desired shape, sintering the formed shape at 2100.degree. C. in an argon atmosphere. The method has particular application to manufacturing parts for gas turbines.

REFERENCES:
Bocker et al., "The Influence of Boron and Carbon Additions on the Microstructure of Sintered Alpha Silicon Carbide", Powder Metallurgy International, vol. 10, No. 2 (1978) pp. 87-89.

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