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, wherein the carbonate material is selected from an alkaline earth metal carbonate, and wherein each layer has a weight percent ratio of diamond to carbonate that is different between adjacent layers. The layers are subjected to high pressure high temperature conditions to form polycrystalline diamond.