POLYCRYSTALLINE DIAMOND

An embodiment of a PCD insert comprises an embodiment of a PCD element joined to a cemented carbide substrate at an interface. The PCD element has internal diamond surfaces defining interstices between them. The PCD element comprises a masked or passivated region and an unmasked or unpassivated regi...

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Bibliographic Details
Main Authors LIVERSAGE, John Hewitt, FISH, Michael Lester, KAISER, Bronwyn Annette, SCOTT, Danny Eugene, SITHEBE, Humphrey Samkelo Lungisani, NAIDOO, Kaveshini
Format Patent
LanguageEnglish
Published 12.01.2023
Subjects
ALLOYS
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FERROUS OR NON-FERROUS ALLOYS
FIXED CONSTRUCTIONS
GRINDING
LIME, MAGNESIA
METALLURGY
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
PERFORMING OPERATIONS
POLISHING
REFRACTORIES
SLAG
TOOLS FOR GRINDING, BUFFING, OR SHARPENING
TRANSPORTING
TREATMENT OF ALLOYS OR NON-FERROUS METALS
TREATMENT OF NATURAL STONE
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Summary:An embodiment of a PCD insert comprises an embodiment of a PCD element joined to a cemented carbide substrate at an interface. The PCD element has internal diamond surfaces defining interstices between them. The PCD element comprises a masked or passivated region and an unmasked or unpassivated region, the unmasked or unpassivated region defining a boundary with the substrate, the boundary being the interface. At least some of the internal diamond surfaces of the masked or passivated region contact a mask or passivation medium, and some or all of the interstices of the masked or passivated region and of the unmasked or unpassivated region are at least partially filled with an infiltrant material.
Bibliography:Application Number: US202217946247