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US 2015/0183091 A1Published application
Chemical leaching/thermal decomposing carbonate in carbonate pcd
AssigneeSmith International, Inc.
InventorsYahua Bao, J. Daniel Belnap, Liang Zhao
Life of this patent
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Abstract
A method for treating a polycrystalline diamond material includes subjecting the polycrystalline diamond material to a leaching process and to a thermal decomposition process.
Claims20
A method for treating a polycrystalline diamond material comprising;
- subjecting the polycrystalline diamond material to a leaching process or a thermal decomposition process, the polycrystalline diamond material comprising bonded crystals with carbonate catalyst material in interstitial spaces between the crystals;
- and
- subsequently subjecting the polycrystalline diamond material to the other of the leaching process or the thermal decomposition process.
A method for treating a polycrystalline diamond material comprising:
- simultaneously subjecting the polycrystalline diamond material to a leaching process and a thermal decomposition process, the polycrystalline diamond material comprising bonded crystals with carbonate catalyst material in interstitial spaces between the crystals.
Dependencies are inferred from the claim text.