INTERFACE MODIFICATION OF POLYCRYSTALLINE DIAMOND COMPACT
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Nov 9, 2012
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Nov 9, 2012
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Abstract
A cutting element and a method of providing the cutting element are provided. The cutting element may comprise a substrate, a first polycrystalline diamond zone, and a second polycrystalline diamond zone. The first polycrystalline diamond zone may have substantially free of a catalyst material. The second polycrystalline diamond zone rich in the catalyst material may be bonded to the substrate along an interface. The second polycrystalline diamond zone may be bonded to the first polycrystalline diamond zone along an effective transition zone. The effective transition zone may have a plurality of irregular projections toward the first polycrystalline diamond zone and the second polycrystalline diamond zone.
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