The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 01, 1984
Filed:
Sep. 16, 1982
Peter M Castle, Penn Hills, PA (US);
George G Sweeney, Penn Hills, PA (US);
Lymperios N Yannopoulos, Churchill Borough, PA (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
A method is disclosed for preparing a silicon carbide-coated substrate without subjecting the substrate to unnecessary thermal stress. A coating of a silicon carbide precursor polymer is placed on a substrate and the coating is subjected to a laser beam of sufficient energy to raise the temperature of the coating in the area of impingement of the laser beam to approximately 1200.degree. C. to 1600.degree. C. until the coating is converted into a silicon carbide ceramic material. The area of laser beam impingement is located in an inert atmosphere or vacuum while the reaction is taking place.