Polycrystalline diamond member and method of making the same

A polycrystalline diamond member and a method for making the same. The member includes a backing and a layer of polycrystalline diamond on the backing wherein the layer of polycrystalline diamond has a rake surface and a flank surface. The layer of polycrystalline diamond has an interior region adja...

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Bibliographische Detailangaben
1. Verfasser:	OLES EDWARD J
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE BORING CEMENTS CERAMICS CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL COMBINED OPERATIONS COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LIME, MAGNESIA MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY OTHER WORKING OF METAL PERFORMING OPERATIONS REFRACTORIES SLAG SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING TREATMENT OF NATURAL STONE TURNING UNIVERSAL MACHINE TOOLS
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Beschreibung
Zusammenfassung:	A polycrystalline diamond member and a method for making the same. The member includes a backing and a layer of polycrystalline diamond on the backing wherein the layer of polycrystalline diamond has a rake surface and a flank surface. The layer of polycrystalline diamond has an interior region adjacent to the backing and an exterior region adjacent to the interior region wherein the exterior region terminates at the rake surface. The interior region includes interior diamond particles and a catalyst with the interior diamond particles being bridged together so as to form interstices therebetween. The catalyst is at the interstices of the interior diamond particles. The exterior region includes exterior diamond particles bridged together so as to form interstices therebetween with the exterior region being essentially free of the catalyst. A chemical vapor deposition-applied hard material essentially surrounds the exterior diamond particles.