POLYCRYSTALLINE DIAMOND COMPACTS, AND RELATED METHODS AND APPLICATIONS

摘要

Embodiments relate to polycrystalline diamond compacts (“PDCs”) including a polycrystalline diamond (“PCD”) table in which a metal-solvent catalyst is alloyed with at least one alloying element to improve thermal stability and/or wear resistance of the PCD table. In an embodiment, a PDC includes a substrate and a PCD table bonded to the substrate. The PCD table includes diamond grains defining interstitial regions. The PCD table includes an alloy comprising at least one Group VIII metal and at least one metallic alloying element such as phosphorous.

主权项

1. A polycrystalline diamond compact, comprising:
a substrate; and a polycrystalline diamond table including:
an upper surface;at least one side surface;an interfacial surface spaced from the upper surface and bonded to the substrate;a plurality of bonded diamond grains defining a plurality of interstitial regions;a first region extending inwardly from the upper surface and the at least one side surface, the first region including an alloy disposed in at least a portion of the plurality of interstitial regions in the first region, the alloy comprising at least one intermediate compound including at least one Group VIII metal and phosphorous; anda second region extending inwardly from the interfacial surface that is substantially free of phosphorous.