Process for making silicon nitride articles

Details Process for making silicon nitride articles Process for making silicon nitride articles

1987-10-23

1988-11-01

Derrington, James

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

423344, C04B 3558

Patent

active

047818743

ABSTRACT:
A process for making silicon nitride articles such as an internal combustion valve (8) by coating or causing silicon to grow on powdered silicon nitride particles through a vapor phase reaction and then forming and nitriding the articles in substantially less time than had the article been formed entirely from powdered silicon.

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patent: 4632849 (1986-12-01), Ogawa et al.
patent: 4710260 (1987-12-01), Witter et al.

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