Graphite coated metal nanoparticles for polycrystalline diamond compact synthesis
AssigneeBaker Hughes Incorporated
InventorsOleg A. Mazyar, Michael H. Johnson, Anthony A. DiGiovanni, Dan E. Scott
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Abstract
A method of forming polycrystalline diamond includes forming metal nanoparticles having a carbon coating from an organometallic material; combining a diamond material with the metal nanoparticles having the carbon coating; and processing the diamond material and the metal nanoparticles having the carbon coating to form the polycrystalline diamond. Processing includes catalyzing formation of the polycrystalline diamond by the metal nanoparticles; and forming interparticle bonds that bridge the diamond material by carbon from the carbon coating.
Claims23
A method of forming polycrystalline diamond, comprising:
- forming metal nanoparticles having a carbon coating from an organometallic material;
- combining a diamond material with the metal nanoparticles having the carbon coating;
- and
- processing the diamond material and the metal nanoparticles having the carbon coating to form the polycrystalline diamond, including:
- catalyzing formation of the polycrystalline diamond by the metal nanoparticles;
- and
- forming interparticle bonds that bridge the diamond material by carbon from the carbon coating,
- wherein the organometallic material is a metallocene comprising:
- a metal selected from magnesium, aluminum, titanium, vanadium, chromium, manganese, iron, cobalt, nickel, zirconium, ruthenium, hafnium, tantalum, tungsten, rhenium, osmium, or a combination comprising at least one of the foregoing;
- and
- a ligand selected from an alkyl, aryl, hydride, halide, amide, η2-alkene, CO, CS, amine, nitrile, isocyanide, phosphane, alkylidene, alkyldiide, nitrene, imide, oxide, alkylidyne, alkytriide, η3-allyl, η3-enyl, η3-cyclopropenyl, NO, η4-diene, η4-cyclobutadiene, η5-cyclopentadienyl, η6-arene, η6-triene, η7-tropylium, η7-cycloheptatrienyl, η8-cyclooctatetraene, or a combination comprising at least one of the foregoing.
A method of forming a polycrystalline diamond compact, comprising
- forming metal nanoparticles at least partially having a carbon coating from an organometallic material;
- disposing a diamond material and the metal nanoparticles having the carbon coating on a ceramic substrate;
- and
- processing the diamond material and the metal nanoparticles having the carbon coating to form the polycrystalline diamond compact, including
- catalyzing formation of the polycrystalline diamond by the metal nanoparticles;
- and
- forming bonds that bridge the diamond material by the carbon from the carbon coating,
- wherein the organometallic material is a metallocene comprising:
- a metal selected from magnesium, aluminum, titanium, vanadium, chromium, manganese, iron, cobalt, nickel, zirconium, ruthenium, hafnium, tantalum, tungsten, rhenium, osmium, or a combination comprising at least one of the foregoing;
- and
- a ligand selected from an alkyl, aryl, hydride, halide, amide, η2-alkene, CO, CS, amine, nitrile, isocyanide, phosphane, alkylidene, alkyldiide, nitrene, imide, oxide, alkylidyne, alkytriide, η3-allyl, η3-enyl, η3-cyclopropenyl, NO, η4-diene, η4-cyclobutadiene, η5-cyclopentadienyl, η6-arene, η6-triene, η7-tropylium, η7-cycloheptatrienyl, η8-cyclooctatetraene, or a combination comprising at least one of the foregoing.
Dependencies are inferred from the claim text.