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:
Aug. 24, 1993
Filed:
Jul. 17, 1992
Applicant:
Inventors:
Assignee:
United Kingdom Atomic Energy Authority, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; C23C / ; C23C / ; C23C / ;
U.S. Cl.
CPC ...
428366 ; 427569 ; 427576 ; 427577 ; 427249 ; 427250 ; 4272557 ; 2041921 ; 20429805 ; 20429826 ; 501 91 ; 501 95 ; 428367 ; 428368 ; 428381 ; 428386 ; 428389 ; 428408 ; 428472 ; 428698 ; 428699 ; 428704 ;
Abstract
Silicon carbide filaments are coated to protect them from attack by a titanium matrix material when incorporating them into a metal matrix composite. The coating method comprises coating the filaments firstly with a carbon layer and then with a titanium carbide or boride layer whose carbon or boron content decreases progressively from its interface with the carbon layer to its exterior surface. A layer of titanium or a titanium based alloy may be provided on the titanium carbide or boride layer to facilitate incorporation into a metal matrix. Preferably, the layers are applied by sputter ion plating.