METHOD OF PROCESSING POLYCRYSTALLINE DIAMOND MATERIAL

A method of processing a polycrystalline diamond (PCD) material having a non- diamond phase with a catalyst/solvent material includes leaching an amount of the catalyst/solvent from the PCD material by exposing at least a portion of the PCD material to a leaching mixture, the leaching mixture compri...

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Bibliographische Detailangaben
Hauptverfasser:	Aldmington, David William, Zvoriste-Walters, Carmen Elena, Baleca, Cristian
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	A method of processing a polycrystalline diamond (PCD) material having a non- diamond phase with a catalyst/solvent material includes leaching an amount of the catalyst/solvent from the PCD material by exposing at least a portion of the PCD material to a leaching mixture, the leaching mixture comprising hydrofluoric acid at a molar concentration of between 12 M to around 28 M, nitric acid at a molar concentration of between around 3 M to around 10 M, and water.