C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
25/130
C04B 35/65 (2006.01) B28B 7/34 (2006.01)
Patent
CA 1307913
- 37 - TITLE METHOD OF MAKING CERAMIC COMPOSITE ARTICLES BY INVERSE SHAPE REPLICATION OF AN EXPENDABLE PATTERN APPLICANT LANXIDE TECHNOLOGY COMPANY, LP INVENTOR Andrew Willard URQUHART Evans Allen LAROCHE, JR. ABSTRACT There is disclosed a method of producing a self-supporting ceramic composite body having therein at least one cavity which inversely replicates the geometry of an expendable pattern. The method includes the steps of surrounding the expendable pattern with a filler material to thereby form a filled cavity within the filler material. The expendable pattern is chemically or physically removed from the filler material and a quantity of a parent metal is put into the cavity. The parent metal is heated to a temperature above its melting point and an oxidation reaction process begins whereby the oxidation reaction product infiltrates and embeds the surrounding filler material. Excess filler material and/or excess parent metal are removed, thus resulting in a self-supporting ceramic composite body having a cavity in the shape of the expendable pattern.
547465
Laroche Evans A. Jr.
Urquhart Andrew W.
Lanxide Corporation
Lanxide Technology Company Lp
Laroche Evans A. Jr.
Mitches & Co.
Urquhart Andrew W.
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