Refractory metal mask and methods for coating an article and...

Details Refractory metal mask and methods for coating an article and... Refractory metal mask and methods for coating an article and...

2005-03-08

2005-03-08

Parker, Fred J. (Department: 1762)

Coating processes

Spray coating utilizing flame or plasma heat

Nonuniform or patterned coating

C427S450000, C427S451000, C427S455000, C427S282000

Reexamination Certificate

active

06863930

ABSTRACT:
In one embodiment, a method for coating an article, comprises: masking an area of an article with a mask comprising elemental tungsten at least on a surface of the mask opposite the article, heating a coating material, directing the material at the article and the mask, and forming a coating of the material on the article.In another embodiment, the method for coating an article comprises: masking an area of an article with a mask comprising a material having melting point of greater than or equal to about 2,000° C., a start of oxidation temperature of greater than or equal to 400° C., in air, heating a material, directing the heated material at the masked article, and forming a coating of the material on the article. A difference in a mask coefficient of thermal expansion and a coating material coefficient of thermal expansion is greater than or equal to about 10%.

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