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. 06, 2022
Filed:
May. 31, 2017
Applicant:
Element Six (Uk) Limited, Didcot, GB;
Inventors:
Assignee:
Element Six (UK) Limited, Didcot, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B 35/5831 (2006.01); C04B 35/626 (2006.01); C04B 35/645 (2006.01); C22C 26/00 (2006.01); B22F 1/107 (2022.01); B22F 9/04 (2006.01);
U.S. Cl.
CPC ...
C04B 35/5831 (2013.01); B22F 1/107 (2022.01); B22F 9/04 (2013.01); C04B 35/6261 (2013.01); C04B 35/645 (2013.01); C22C 26/00 (2013.01); B22F 2202/01 (2013.01); B22F 2998/10 (2013.01); B22F 2999/00 (2013.01); C04B 2235/3217 (2013.01); C04B 2235/386 (2013.01); C04B 2235/3813 (2013.01); C04B 2235/3843 (2013.01); C04B 2235/3856 (2013.01); C04B 2235/3865 (2013.01); C04B 2235/3886 (2013.01); C04B 2235/5436 (2013.01); C04B 2235/5445 (2013.01); C04B 2235/5454 (2013.01); C04B 2235/72 (2013.01); C04B 2235/783 (2013.01); C04B 2235/784 (2013.01); C22C 2026/003 (2013.01);
Abstract
Polycrystalline cubic boron nitride, PCBN, material and methods of making PCBN. A method includes providing a matrix precursor powder comprising particles having an average particle size no greater than 250 nm, providing a cubic boron nitride, cBN, powder comprising particles of cBN having an average particle size of at least 0.2 intimately mixing the matrix precursor powder and the cBN powder, and sintering the intimately mixed powders at a temperature of at least 1100° C. and a pressure of at least 3.5 GPa to form the PCBN material comprising particles of cubic boron nitride, cBN dispersed in a matrix material.