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US 11,873,256 B2Granted
Polycrystalline diamond with iron-containing binder
OwnerAntionette Can, Xiaoxue Zhang +4inventors
InventorsAntionette Can, Xiaoxue Zhang, Igor Petrusha, Alexander Osipov, Denis Stratiichuk, Vladimir Turkevich
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Abstract
This disclosure relates to a polycrystalline diamond (PCD) body comprising a PCD material formed of intergrown diamond grains forming a diamond network, and an iron-containing binder.
Claims19
A method of producing a polycrystalline diamond (PCD) body, comprising the steps:
- a. Forming a precursor binder mixture of FexN and graphite powders;
- b. Adding the precursor binder mixture to a refractory cup in a layer;
- c. Adding a diamond feed stock to the cup, adjacent to the precursor binder mixture;
- d. Compacting the precursor binder mixture and diamond feed stock in the cup to form a green body;
- e. Sintering the green body at a temperature of 1700° C. to 2300° C. and at a pressure of about 7 GPa, or higher for at least 30 seconds to form a sintered PCD body.
2 more elements
Dependencies are inferred from the claim text.