Production of beta-alumina ceramic articles

Details Production of beta-alumina ceramic articles Production of beta-alumina ceramic articles

1977-03-09

1978-09-26

White, Robert F.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By mechanically introducing gas into material

264 65, 264 66, 264 85, 264320, 264332, 429193, C04B 3510

Patent

active

041170563

ABSTRACT:
Beta-alumina ceramic articles of improved strength and durability particularly for use in sodium sulphur cells are produced by compacting beta-alumina particles or a mixture of powders which react to form beta-alumina, sintering the compacted material in air or oxygen to form an impervious polycrystalline ceramic body and then further densifying the sintered body by subjecting it to the direct isostatic pressing action of a fluid, e.g. a gas at a pressure of at least about 5,000 psi and at a temperature between 1200.degree. C and 1500.degree. C which is above the elastic/plastic transformation, said fluid being inert and non-permeating with respect to said fired body and subsequently cooling the body under pressure to a temperature below the elastic/plastic transformation.

REFERENCES:
patent: 3795723 (1974-03-01), Clendenen et al.
patent: 3950463 (1976-04-01), Jones

Affiliated with

Also associated with

Rating

Production of beta-alumina ceramic articles does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Production of beta-alumina ceramic articles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Production of beta-alumina ceramic articles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2089828