High density silicon nitride bodies

Details High density silicon nitride bodies High density silicon nitride bodies

1984-05-02

1989-11-07

Derrington, James

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

501 97, C04B 3544

Patent

active

048790800

ABSTRACT:
A pressureless sintering process is disclosed for producing silicon nitride bodies of near theoretical density from an admixture of silicon nitride and sintering aids of mixtures of lanthanum oxide and aluminum oxide, lanthanum aluminate, and mixtures of lanthanum aluminate and aluminum oxide and mixtures of lanthanum aluminate and lanthanum oxide.

REFERENCES:
patent: 3950464 (1976-04-01), Masuki et al.
patent: 3969125 (1976-07-01), Komeya
patent: 4211758 (1980-07-01), Buhrer
patent: 4332909 (1982-01-01), Nishida et al.

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