Sintered silicon nitride products

Details Sintered silicon nitride products Sintered silicon nitride products

1989-12-14

1991-07-16

Dixon, Jr., William R.

Compositions: ceramic

Ceramic compositions

Refractory

501 98, C04B 3558

Patent

active

050325540

ABSTRACT:
A sintered silicon nitride product comprises from 72 to 98% by weight of silicon nitride, from 1 to 8% by weight of vanadium pentoxide, and from 1 to 20% by weight of one or more oxides of rare earth elements. The vanadium pentoxide and the oxide of rare earth elements accelerate the densification of the sintered product, and provide high strength at high temperature as well as excellent oxidation resistance to the sintered product.

REFERENCES:
patent: 4407970 (1983-10-01), Komatsu
patent: 4511402 (1985-04-01), Miura et al.

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