Process for sintering reaction bonded silicon nitride

Details Process for sintering reaction bonded silicon nitride Process for sintering reaction bonded silicon nitride

1978-12-18

1982-09-28

Parrish, John A.

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

204 66, 501154, C04B 3558

Patent

active

043517870

ABSTRACT:
Sintered silicon nitride articles are prepared from a silicon nitride compact by forming a silicon powder containing one or more sintering additives for silicon nitride into a compact having at density of at least 1.3 g/cm.sup.3, said additives being present in the powder in an amount such as to ensure an additive content of from 0.5 to 20 wt. % in the silicon nitride compact, nitriding the silicon compact by heating under nitrogen gas blanket at a temperature not exceeding 1500.degree. C., to convert said silicon into reaction bonded silicon nitride, and sintering the reaction bonded silicon nitride compact by heating in a nitrogen gas atmosphere at a temperature of at least 1500.degree. C.

REFERENCES:
patent: 3206318 (1965-09-01), Yamauchi et al.
patent: 4017319 (1977-04-01), Greskovich
patent: 4119690 (1978-10-01), Prochazka et al.
patent: 4127630 (1978-11-01), Washburn
Boyer et al., "A Mechanism for the Nitridation of Fe-Contaminated Silican", J. Materials Science, 13 (1938), p. 1637-1646.

Affiliated with

Also associated with

Rating

Process for sintering reaction bonded silicon nitride does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for sintering reaction bonded silicon nitride, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for sintering reaction bonded silicon nitride will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-399353