Process for producing compact silicon nitride ceramics

Details Process for producing compact silicon nitride ceramics Process for producing compact silicon nitride ceramics

1978-08-22

1980-05-27

Parrish, John A.

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

106 63, 106 734, 106 735, 264332, C04B 3558

Patent

active

042050332

ABSTRACT:
A process for producing a compact silicon nitride ceramic product which comprises molding a powder mixture of Si.sub.3 N.sub.4, Ta.sub.2 O.sub.5 and Al.sub.2 O.sub.3 in proportions defined by the region A, B, C, D in the FIGURE within the ranges of 65.0 to 96.0% by volume Si.sub.3 N.sub.4, 1.0 to 32.0% by volume Ta.sub.2 O.sub.5 and 3.0 to 20.0% by volume Al.sub.2 O.sub.3, and then firing the powder mixture in a non-oxidizing atmosphere containing a carbon compound; or hot-pressing the powder mixture; in a graphite mold.

REFERENCES:
patent: 3969125 (1976-07-01), Komeya et al.
patent: 3989782 (1976-11-01), Lumby et al.
patent: 4127416 (1978-11-01), Lumby et al.

Affiliated with

Also associated with

Rating

Process for producing compact silicon nitride ceramics 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 producing compact silicon nitride ceramics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing compact silicon nitride ceramics will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1119510