POLYCRYSTALLINE DIAMOND COMPACT COATED WITH HIGH ABRASION RESISTANCE DIAMOND LAYERS
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United States of America Patent
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Issued Date -
Mar 6, 2014
app pub date -
Aug 31, 2012
filing date -
Aug 31, 2012
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Abandoned
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Abstract
A cutting element may comprise a substrate, a first polycrystalline diamond volume, and a second diamond or diamond like volume. The first polycrystalline diamond volume may contain a catalyst material. The first polycrystalline diamond volume may be bonded to the substrate. The second diamond or diamond like volume may be formed predominantly from carbon atoms and free of catalyst materials. The second diamond or diamond like volume may be adjacent to a working surface of cutting element. The second diamond or diamond like volume may be bonded to the first polycrystalline diamond volume.
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