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:
Oct. 04, 2005
Filed:
Aug. 10, 2000
Daniel J. Belnap, Pleasant Grove, UT (US);
Nathan R. Anderson, Pleasant Grove, UT (US);
Zhigang Fang, The Woodlands, TX (US);
Anthony Griffo, The Woodlands, TX (US);
Brian A. White, The Woodlands, TX (US);
Daniel J. Belnap, Pleasant Grove, UT (US);
Nathan R. Anderson, Pleasant Grove, UT (US);
Zhigang Fang, The Woodlands, TX (US);
Anthony Griffo, The Woodlands, TX (US);
Brian A. White, The Woodlands, TX (US);
Smith International, Inc., Houston, TX (US);
Abstract
PCD materials of this invention comprise diamond crystals that are bonded together with a catalyst/binder material. The PCD material is prepared by combining diamond grains with a catalyst/binder material either as a premixture or by infiltration during sintering. The PCD material comprises 15 percent by volume or less diamond grains sized 20 micrometers or less. The diamond grains are pressurized under elevated temperature conditions to form the desired PCD material. PCD materials of this invention can constitute the exclusive material phase of a PCD construction, or can form one or more material phase in a multi-phase material microstructure, wherein the multiple material phase can be arranged in an ordered/oriented or random fashion. PCD materials of this invention display improved properties of impact and fatigue resistance, and functional toughness, when used in complex wear environments, when compared to conventional PCs materials comprising intentionally added fine-sized diamond grains.