Reaction sintered boride-oxide-silicon nitride for ceramic cutti

Details Reaction sintered boride-oxide-silicon nitride for ceramic cutti Reaction sintered boride-oxide-silicon nitride for ceramic cutti

1988-08-24

1989-10-24

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Refractory

501 98, 51309, C04B 3558

Patent

active

048762270

ABSTRACT:
This invention is directed to the production of oxide-boride-silicon nitride ceramics consisting essentially of ceramic bodies of oxide and boride phases which have silicon nitride added to improve the properties of the ceramic body for use as wear material, durable interface material, and cutting tool inserts. The addition of Si.sub.3 N.sub.4 to the oxide-boride body provides a durable ceramic material which provides a range of cutting speeds that may be utilized in both turning and milling operations.

REFERENCES:
patent: 4650498 (1987-03-01), Buljan
patent: 4748138 (1988-05-01), Watanabe et al.

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