Method for molding ceramic powders

Details Method for molding ceramic powders Method for molding ceramic powders

1988-02-22

1990-01-16

Derrington, James

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

264 63, 264236, 264344, C04B 3806

Patent

active

048941948

ABSTRACT:
A method for molding ceramic powders comprises forming a slurry mixture including ceramic powder, a dispersant for the metal-containing powder, and a monomer solution. The monomer solution includes at least one multifunctional monomer, a free-radical initiator, and an organic solvent. The slurry mixture is transferred to a mold, and the mold containing the slurry mixture is heated to polymerize and crosslink the monomer and form a firm polymer-solvent gel matrix. The solid product may be removed from the mold and heated to first remove the solvent and subsequently remove the polymer, whereafter the product may be sintered.

REFERENCES:
patent: 2939199 (1960-07-01), Strivens
patent: 3351688 (1967-11-01), Kingery
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patent: 4478790 (1984-10-01), Huther
patent: 4560527 (1984-07-01), Kato
patent: 4587068 (1986-05-01), Borase
Cullen, F. M. et al, Forming Precision Shapes from Powdered Materials, IBM Technical Disclosure Bulletin, vol. 14, No. 10, Mar. 1972.

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