Process and composition for slip casting a ceramic powder

Details Process and composition for slip casting a ceramic powder Process and composition for slip casting a ceramic powder

1996-09-23

1997-11-25

Brunsman, David

Compositions: coating or plastic

Coating or plastic compositions

Carbohydrate or derivative containing

501104, 501 1, C08L 128, C04B 3500

Patent

active

056907249

ABSTRACT:
A process and composition are disclosed for slip casting a ceramic powder in a porous mold. In this invention, a ceramic powder is blended with a polymeric cellulose ether. A slurry of ceramic powder-cellulose ether is formed. A porous mold is coated with a hydrophilic colloid of ammonium alginate to form a treated mold. The slurry is then poured in the treated mold and a slip is formed. This invention is particularly useful for forming crack-free slips made from difficult to cast ceramic powders.

REFERENCES:
patent: 2316745 (1943-04-01), Robertson et al.
patent: 2322179 (1943-06-01), Van Zwet et al.
patent: 5102836 (1992-04-01), Brown et al.
patent: 5538681 (1996-07-01), Wu
CA 83:83963, Hagiwara et al, "Porcelain coating for inorganic molded products", Dec. 12,1974.

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