C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
25/123
C04B 35/65 (2006.01) B22F 3/00 (2006.01) C04B 35/10 (2006.01)
Patent
CA 1308885
TITLE METHOD OF MAKING SHAPED CERAMIC ARTICLES BY SHAPE REPLICATION OF AN EXPENDABLE PATTERN APPLICANT LANXIDE TECHNOLOGY COMPANY, LP INVENTOR E. Allen LAROCHE ABSTRACT A method of producing shaped, self-supporting ceramic bodies includes preparing a mold by applying a permeable, conformable material to a shape-defining surface of an expendable pattern. The permeable, conformable material, when set or stable, provides a mold with a shaped surface which is defined by, and is therefore substantially congruent to, the shape-defining surface. Upon heating, the material of the expendable pattern combusts or volatilizes and thus establishes the shaped cavity mold. A molten parent metal is then vaporized with a vapor-phase oxidant in such a manner as to form a ceramic body which grows into the mold cavity, and is shaped by it. The ceramic body is recovered from the mold having a shaped surface replicating the shape-defining surface of the expendable pattern.
556270
Lanxide Technology Company Lp
Mitches & Co.
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