Sinterable powders and methods of producing sintered ceramic...

Details Sinterable powders and methods of producing sintered ceramic... Sinterable powders and methods of producing sintered ceramic...

C - Chemistry, Metallurgy

04

B

261/6

C04B 35/56 (2006.01) C04B 35/565 (2006.01)

Patent

CA 1125316

ABSTRACT Sinterable powders of ceramic material, suitably silicon carbide, and methods of producing sintered articles from the powders are described. The particulate ceramic material which comprises the powders has a substantially uniform coating of the residue of a liquid sintering aid (source of boron) selected from solutions of H3BO3, B2O3, or mixtures thereof. The powders also include a carbon source material. Preferably, the particulate material is sub- stantially uniformly c???ed with a combination residue from liquid sintering aid and liquid carbon source material. The resulting powders may be shaped into articles and sintered to produce hard, dense articles.

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