Abstract: There is disclosed a method of abrading a product where a corrosive environment is experienced which includes the steps of using, as the abrading element, a composite diamond compact comprising a diamond compact bonded to a cemented carbide substrate, the diamond compact comprising a polycrystalline mass of diamond particles and a second phase containing diamond catalyst/solvent and a noble metal.

Abstract: There is disclosed a method of abrading a product where a corrosive environment is experienced which includes the steps of using, as the abrading element, a composite diamond compact comprising a diamond compact bonded to a cemented carbide substrate, the diamond compact comprising a polycrystalline mass of diamond particles and a second phase containing diamond catalyst/solvent and a noble metal.

Abstract: Disclosed is a method of making a composite diamond having a cutting edge comprising a diamond compact bonded to a cemented carbide substrate, the diamond compact having a working surface, an edge of which provides the cutting edge, wherein the diamond compact comprises a first phase containing a polycrystalline mass of diamond particles and a second phase containing a diamond catalyst/solvent and ruthenium, which method includes the steps of providing a cemented carbide substrate, providing a layer of diamond particles on a surface of the substrate, providing a source of diamond catalyst/solvent and ruthenium, wherein the source of the diamond catalyst/solvent and ruthenium is the cemented carbide substrate.

Abstract: The invention provides a method of manufacturing an abrasive body which includes the steps of providing a mixture comprising a mass of nanosized ceramic particles and a mass of ultra-hard abrasive particles, typically diamond and cubic boron nitride, and sintering the mixture into a coherent body. The sintering conditions used are hot-pressing conditions.