Grinding amorphous silicon nitride powder prior to heating to pr

Details Grinding amorphous silicon nitride powder prior to heating to pr Grinding amorphous silicon nitride powder prior to heating to pr

1983-07-26

1985-05-14

McCarthy, Helen M.

Chemistry of inorganic compounds

Silicon or compound thereof

Binary compound

501 97, C01B 21068, C04B 3558

Patent

active

045171688

ABSTRACT:
Crystalline silicon nitride powder in the form of granular particles having a large tap density and having good filling characteristics is produced by heating amorphous silicon nitride powder under an inert or reducing gas atmosphere. The amorphous silicon nitride powder is ground prior to the heating and the powder to be heated is maintained at a temperature of 1250.degree. C. to 1430.degree. C. for at least one hour in the course of temperature rise.

REFERENCES:
patent: 4073845 (1978-02-01), Buljan et al.
patent: 4196178 (1980-04-01), Iwai et al.
patent: 4208215 (1980-06-01), Kleiner et al.
patent: 4376652 (1983-03-01), Buljan
patent: 4405589 (1983-09-01), Iwai et al.

Affiliated with

Also associated with

Rating

Grinding amorphous silicon nitride powder prior to heating to pr does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Grinding amorphous silicon nitride powder prior to heating to pr, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Grinding amorphous silicon nitride powder prior to heating to pr will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-767938