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. 17, 1996
Filed:
Aug. 30, 1994
Applicant:
Inventors:
Helene S Brandrup-Wognsen, Ingaro, SE;
Stefan S Ederyd, Saltsjo-Boo, SE;
Assignee:
Sandvik AB, Sandviken, SE;
Primary Examiner:
Int. Cl.
CPC ...
C22C / ;
U.S. Cl.
CPC ...
428323 ; 428336 ; 428403 ; 428404 ; 428408 ; 428697 ; 428698 ; 428457 ; 428469 ; 428701 ; 428704 ; 51295 ; 51307 ; 51309 ;
Abstract
According to the present invention there is provided a wear resistant material consisting of 3-60% by volume of diamond in a matrix containing at least one hard constituent consisting of carbide, nitride and/or carbonitride of one metal of group IV, V and VI in the Periodic Table and a binder phase based upon Co, Ni and/or Fe at which the diamonds are surrounded by a layer >1 .mu.m of refractory metals, carbides, nitrides, oxides, borides or silicides. In this way, a dissolution of diamonds during the sintering is prevented by a special combination of layer material and sintering compaction process.