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:
Oct. 01, 1985
Filed:
Jun. 01, 1984
Applicant:
Inventors:
Richard D Veltri, East Hartford, CT (US);
Francis S Galasso, Manchester, CT (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D / ;
U.S. Cl.
CPC ...
1062865 ; 501 88 ;
Abstract
Carbon-carbon composite materials are provided with significantly enhanced oxidation resistance by the formation of a SiC coating. The coating is produced from a pack containing a small but effective amount of boron. The balance of the pack is preferably based on Al.sub.2 O.sub.3, SiO.sub.2, and Si. The composite to be coated is embedded in the pack and heated to an elevated temperature. The boron addition provides a conversion SiC coating having enhanced resistance to oxidation.