Patent · US Active

Polycrystalline diamond compacts, and related methods and applications

US8080074B2 · kind B2 · utility

27Cited by
35References
15Claims
0Family size

Assignee

Inventor

Key dates

Filing dateNov 14, 2008
Grant dateDec 20, 2011
Priority date—
Expiry dateNov 13, 2029

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16C2352/00
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

Embodiments of the invention relate to polycrystalline diamond compacts (“PDCs”) and methods of fabricating such PDCs. In an embodiment of a “two-step” manufactured PDC, a PDC includes a substrate and a pre-sintered polycrystalline diamond (“PCD”) table bonded to the substrate. The pre-sintered PCD table includes bonded diamond grains defining interstitial regions. At least a portion of the interstitial regions include at least one material disposed therein selected from a silicon-cobalt alloy, silicon carbide, cobalt carbide, or a mixed carbide of silicon and cobalt. The pre-sintered PCD table lacks an intermediate contaminant region therein that includes at least one type of fabrication by-product generated during the fabrication of the pre-sintered PCD table.

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