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:
Jun. 26, 1984
Filed:
Dec. 18, 1981
Applicant:
Inventors:
Francis S Galasso, Manchester, CT (US);
John J Brennan, Portland, CT (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
427228 ; 427180 ; 427249 ; 427344 ; 4272554 ; 423345 ; 428446 ; 501 88 ;
Abstract
The impact resistance of hot pressed silicon carbide articles is improved by providing thereon a layer of material resulting from the reaction of silicon in a dilute hydrocarbon gas atmosphere. To form the impact absorbing layer of porous silicon carbide, a silicon powder compact is heated at about 1400.degree. C. in a gas stream comprised predominantly of a carrier gas such as hydrogen, with a reactive hydrocarbon gas such as methane. Unitary articles may also be formed.