Processing silicon nitride by use of boron nitride as a barrier

Details Processing silicon nitride by use of boron nitride as a barrier Processing silicon nitride by use of boron nitride as a barrier

1984-05-09

1985-09-17

Van Balen, William J.

Stock material or miscellaneous articles

Composite

Of silicon containing

156 89, 428688, 428689, 428698, C09J 100, B32B 904

Patent

active

045420726

ABSTRACT:
A process is disclosed for producing a ceramic body coated with boron nitride. A green ceramic body is coated with boron nitride and sintered at a temperature and for a time sufficient for the body to achieve near theoretical density.
Ceramic bodies of near theoretical density can be produced without deformation by coating the bodies with boron nitride, assembling the bodies with a supporting ceramic member which is also coated with boron nitride, sintering the assembly at a temperature and for a time for the bodies to achieve near theoretical density without deformation.

REFERENCES:
patent: 4447283 (1984-05-01), Ebata et al.
patent: 4485143 (1984-11-01), Inoue et al.

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