Method of forming silicon carbide and silicon nitride composite

Details Method of forming silicon carbide and silicon nitride composite Method of forming silicon carbide and silicon nitride composite

2006-04-18

2006-04-18

Griffin, Steven P. (Department: 1731)

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Autogenously or by activation of dry coated particles

C264S125000, C264S332000, C264S682000, C264S683000

Reexamination Certificate

active

07029613

ABSTRACT:
Densified composites of silicon nitride and silicon carbide that exhibit high creep resistance are obtained by mechanically activating a mixture of amorphous powders of silicon nitride and silicon carbide and sintering the mechanically activated mixture in the presence of an electric field under high pressure. The grain size in the resulting composite is less than 100 nanometers for all components of the composite, and the composite exhibits high creep resistance.

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