METHOD FOR PRODUCING A SINTERED, SUPPORTED POLYCRYSTALLINE DIAMOND COMPACT

A sintered supported polycrystalline diamond compact (PCD) having improved abrasion resistance properties is manufactured by subjecting diamond crystals placed in adjacency with a metal carbide support containing a catalyst/sintering aid to high pressure/high temperature (HP/HT) processing. Said PCD...

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Bibliographische Detailangaben
Hauptverfasser:	RAGHAVAN, RAM, SCURLOCK, ROBERT, DEAN, MCHALE, JAMES, MICHAEL, JR
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ALLOYS CASTING CHEMISTRY FERROUS OR NON-FERROUS ALLOYS GRINDING MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY PERFORMING OPERATIONS POLISHING POWDER METALLURGY TOOLS FOR GRINDING, BUFFING, OR SHARPENING TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	A sintered supported polycrystalline diamond compact (PCD) having improved abrasion resistance properties is manufactured by subjecting diamond crystals placed in adjacency with a metal carbide support containing a catalyst/sintering aid to high pressure/high temperature (HP/HT) processing. Said PCD compact comprises: a) a body of diamond crystals comprising a mixture of about 60 wt % to about 80 wt. % of coarse fraction having an average particle size ranging from about 30 to 60 mum and a fine fraction being about not substantially greater than about 20% of the average particle size of said coarse fraction; and b) a support body comprising about 12 wt. % or less of a catalyst/sintering.