Method for producing a silicon nitride base sintered body

Details Method for producing a silicon nitride base sintered body Method for producing a silicon nitride base sintered body

1978-05-15

1979-12-25

Poer, James

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 735, C04B 3558

Patent

active

041804104

ABSTRACT:
A silicon nitride base sintered body having high strength and high density is formed by a normal sintering, namely by sintering without pressure. The sintered body is produced of silicon nitride and the metal oxides yttrium oxide and cerium oxide.
A silicon nitride base sintered body having yet a higher strength and higher density can be produced by heating yttrium oxide and cerium oxide together for forming Y.sub.2 O.sub.3.2CeO.sub.2 before sintering.

REFERENCES:
patent: 4043381 (1977-08-01), Mazdiyasni et al.

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