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:
Sep. 01, 2015
Filed:
Apr. 20, 2011
Applicant:
Robert Fries, Springs, ZA;
Inventor:
Robert Fries, Springs, ZA;
Assignee:
Element Six Abrasives S.A., Luxembourg, LU;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B24D 3/00 (2006.01); B24D 3/34 (2006.01); B01J 3/06 (2006.01); C22C 1/05 (2006.01); C22C 26/00 (2006.01); E21B 10/567 (2006.01);
U.S. Cl.
CPC ...
B24D 3/348 (2013.01); B01J 3/062 (2013.01); C22C 1/051 (2013.01); C22C 26/00 (2013.01); E21B 10/567 (2013.01); B01J 2203/061 (2013.01); B01J 2203/062 (2013.01); B01J 2203/066 (2013.01); B01J 2203/0645 (2013.01); B01J 2203/0655 (2013.01); B01J 2203/0685 (2013.01); B22F 2998/10 (2013.01);
Abstract
A polycrystalline superhard material comprises a sintered mass of superhard grains having a mean superhard grain contiguity of at least 62 percent and at most 92 percent. There is also disclosed a method of making such a polycrystalline superhard material. The method comprises providing a precursor body comprising superhard grains and interstices between the superhard grains, and introducing additive particles into the interstices to form a pre-sinter body. The pre-sinter body is submitted to a temperature and pressure at which superhard material is thermodynamically stable, sintering it and forming polycrystalline superhard material.