B - Operations – Transporting – 05 – D
Patent
B - Operations, Transporting
05
D
117/53
B05D 1/10 (2006.01) B23B 27/14 (2006.01) C04B 41/50 (2006.01) C23C 4/04 (2006.01) C23C 4/06 (2006.01)
Patent
CA 1119357
ABSTRACT OF THE DISCLOSURE This application discloses a new powder compo- sistion which may be plasma sprayed onto the surface of an article to provide a protective coating therefor. The protective coating may be resistant to heat, wear, and corrosion. The coating may also provide a thermal or radiation barrier. In particular, the coating composition for arc plasma spraying consists of finely divided silicon carbide mixed with finely divided silicon. This coating composition is applied to a substrate by developing a plasma spray, feeding the coating composition to the surface of the substrate so that the exposed substrate is coated with a coating which consists essentially of beta silicon carbide and silicon. The new article of manufacture disclosed in this application, is a substrate with a tightly adherent coating thereon consisting essentially of beta silicon either metallic or non-metallic, to which the coating adheres. The coating may provide the substrate with wear resistant characteristics as, for example, if the substrate is to be used for machining metals or as a valve seat in an aluminum engine. The substrate, with the coating thereon, may be used to withstand severe temperatures as, for example, in rocket nozzles and other areas where a substrate would be subjected to extreme temperature.
325672
Alsten Roy L. Van
Moskowitz David
Terner Leslie L.
Ford Motor Company Of Canada Limited
Sim & Mcburney
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