Superhard constructions & methods of making same

A super hard polycrystalline construction comprises a body of polycrystalline super hard material, said body having an exposed working surface. The body of polycrystalline super hard material comprises a first region adjacent the working surface and a second region adjacent the first region; the fir...

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creator Nedret Can
description A super hard polycrystalline construction comprises a body of polycrystalline super hard material, said body having an exposed working surface. The body of polycrystalline super hard material comprises a first region adjacent the working surface and a second region adjacent the first region; the first region being more thermally stable than the second region; and a plurality of apertures or channels, one or more of said apertures or channels extending from the exposed working surface of the body into the second region.
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subjects CASTING
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MAKING METALLIC POWDER
MANUFACTURE OF ARTICLES FROM METALLIC POWDER
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
WORKING METALLIC POWDER
title Superhard constructions & methods of making same
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