Patent · US Active

Polycrystalline diamond compact and method of making same

US8821604B2 · kind B2 · utility

16Cited by
100References
9Claims
0Family size

Assignee

Inventor

Key dates

Filing dateFeb 22, 2011
Grant dateSep 2, 2014
Priority date—
Expiry dateFeb 22, 2031

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16C2220/62
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

A polycrystalline diamond compact includes a substrate and a polycrystalline diamond table attached to the substrate. The polycrystalline diamond table includes an upper surface and at least one peripheral surface. Diamond grains of the polycrystalline diamond table define a plurality of interstitial regions. The polycrystalline diamond table includes a region having silicon carbide positioned within at least some of the interstitial regions thereof. In an embodiment, the first region extends over only a selected portion of the upper surface and/or at least a portion of the at least one peripheral surface. In another embodiment, the first region substantially contours the upper surface and a chamfer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.