SINTERING OF THICK SOLID CARBONATE-BASED PCD FOR DRILLING APPLICATION

摘要

A method of making a polycrystalline diamond compact includes forming multiple layers of premixed diamond particles and carbonate material, where the carbonate material includes an alkaline earth metal carbonate, and where each layer has a weight percent ratio of diamond to carbonate that is different from adjacent layers. The layers are subjected to high pressure high temperature conditions to form polycrystalline diamond.

主权项

1. A polycrystalline diamond construction, comprising:
a polycrystalline diamond body comprising a plurality of bonded together diamond grains forming a matrix phase, a plurality of interstitial regions interposed between the bonded together diamond grains, and a carbonate material disposed within the interstitial regions, the carbonate material comprising an alkaline earth metal carbonate.