Sintered silicon nitride ceramic articles having surface layers

Details Sintered silicon nitride ceramic articles having surface layers Sintered silicon nitride ceramic articles having surface layers

1981-12-21

1983-08-23

McCarthy, Helen M.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

428446, 501 98, 501152, B32B 904, C04B 3558

Patent

active

044004273

ABSTRACT:
Sintered silicon nitride-silica-yttria ceramic articles having silica-rich or yttria-rich casing layers are disclosed. The surface layers are formed by sintering pre-compacted bodies in a powder setter bed to produce unitary sintered bodies having surface layers in which the atom ratio of yttrium to silicon has a smooth gradient from the surface of the article to the interior body of the article.

REFERENCES:
patent: 4234343 (1980-11-01), Andersson
patent: 4285895 (1981-08-01), Mangels et al.
patent: 4323323 (1982-04-01), Lumby et al.
patent: 4323325 (1982-04-01), Samanta et al.
patent: 4336305 (1982-06-01), Tanaka
patent: 4356136 (1982-10-01), Mangels

Affiliated with

Also associated with

Rating

Sintered silicon nitride ceramic articles having surface layers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sintered silicon nitride ceramic articles having surface layers , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sintered silicon nitride ceramic articles having surface layers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1947494