Polycrystalline compacts including nanoparticulate inclusions, cutting elements and earth-boring tools including such compacts, and methods of forming same
AssigneeBaker Hughes Incorporated
InventorAnthony A. DiGiovanni
Life of this patent
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Abstract
Polycrystalline compacts include non-catalytic, non-carbide-forming particles in interstitial spaces between interbonded grains of hard material in a polycrystalline hard material. Cutting elements and earth-boring tools include such polycrystalline compacts. Methods of forming polycrystalline compacts include forming a polycrystalline material including a hard material and a plurality of particles comprising a non-catalytic, non-carbide-forming material. Methods of forming cutting elements include infiltrating interstitial spaces between interbonded grains of hard material in a polycrystalline material with a plurality of non-catalytic, non-carbide-forming particles.
Claims25
A polycrystalline compact, comprising:
- a polycrystalline hard material comprising interbonded grains of hard material;
- rhenium-containing particles within interstitial spaces between the interbonded grains of the hard material;
- a catalyst material comprising at least one of cobalt, nickel, and iron at least partially surrounding the rhenium-containing particles within at least a portion of the interstitial spaces.
A polycrystalline compact, comprising:
- a plurality of grains of hard material, the plurality of grains of the hard material being interbonded to form a polycrystalline hard material;
- and
- a plurality particles disposed in interstitial spaces between the grains of the hard material, the plurality of particles comprising:
- a core comprising a first material;
- a first coating comprising rhenium on the core;
- a second coating comprising platinum;
- and
- a third coating comprising rhenium.
A method of forming a polycrystalline compact, comprising:
- forming a polycrystalline hard material comprising interbonded grains of hard material, rhenium-containing particles within interstitial spaces between the interbonded grains of the hard material, and a catalyst material comprising at least one of cobalt, nickel, and iron at least partially surrounding the rhenium-containing particles within at least a portion of the interstitial spaces.
Dependencies are inferred from the claim text.