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:
Dec. 08, 1987
Filed:
Jul. 26, 1985
Applicant:
Inventor:
George Simkovich, State College, PA (US);
Assignee:
Pennsylvania Research Corporation, University Park, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22C / ;
U.S. Cl.
CPC ...
75244 ; 501 97 ; 4162 / ; 428937 ;
Abstract
An oxidation resistant alloy comprising about 3 to 14 percent Cr by weight, about 3 to 50 percent by volume Si.sub.3 N.sub.4, and the balance selected from the group consisting of Fe, Ni, Co and alloys of these metals. Preferably, the Cr content is between 8 to 12 percent by weight, the Si.sub.3 N.sub.4 content is between about 3 to 22 percent by volume, and the alloy further includes between 1 to 2 percent Si by weight and between about 0.05 and 0.2 percent by weight of a reactive element.