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Donald A Uhlir, 66Gold Beach, OR

Donald Uhlir Phones & Addresses

Gold Beach, OR   

Crescent City, CA   

661 Mountain Side Way, Tucson, AZ 85745    520-6234160    520-6701546   

San Diego, CA   

661 N Mountain Side Way, Tucson, AZ 85745    520-6234160   

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Publications & IP owners

Us Patents

Method For Preparing A Cermet-Coated Article

US Patent:
5486382, Jan 23, 1996
Filed:
May 6, 1993
Appl. No.:
8/057392
Inventors:
Joseph A. Ference - San Diego CA
Ronald E. Bullock - Cardiff CA
Donald A. Uhlir - San Diego CA
Michael L. Duhl - San Diego CA
Sam A. Ropelato - San Diego CA
Assignee:
Hughes Missile Systems Company - Los Angeles CA
International Classification:
B05D 302
US Classification:
4273763
Abstract:
An article (22) is coated with a cermet coating (20) by first roughening and oxidizing the surface to be coated. A mixture is formed of a metallic powder having a mean particle size of less than about 5 micrometers, and a ceramic powder having at least some of the particle of a size less than the mean particle size of the metallic powder. The mixture of the metallic powder and the ceramic powder desirably has a coating coefficient of thermal expansion of about that of the article coefficient of thermal expansion after firing. The mixture of metallic and ceramic powders is slurried and applied to the prepared surface (24) of the article (22), preferably by spraying. The coated article is heated to an intermediate temperature to vaporize the carrier liquid, and thereafter to high temperature to sinter the coating.

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