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. 21, 1996
Filed:
Sep. 13, 1983
David M Shuford, Grand Prairie, TX (US);
Loral Vought Systems Corporation, Grand Prairie, TX (US);
Abstract
In accordance with the invention, a composition of matter is provided for forming a coating for protecting carbonaceous substrates from degradation at elevated temperatures. The composition is a mixture of particulate silicon, silicon carbide and boron. The mixture contains between about 25% and 40% silicon by weight of the total composition, between about 50% and 70% by weight silicon carbide by weight of the total composition, between about 1% and 15% boron by way of the total composition and a minor amount of magnesium. The compositions can be used in a method for forming a primary protective coating on carbonaceous substrates including, in particular, reinforced carbon-carbon materials produced using chemical vapor deposition techniques.