Patent ID: 8882872

Claim:
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, η 2 -alkene, CO, CS, amine, nitrile, isocyanide, phosphane, alkylidene, alkyldiide, nitrene, imide, oxide, alkylidyne, alkytriide, η 3 -allyl, η 3 -enyl, η 3 -cyclopropenyl, NO, η 4 -diene, η 4 -cyclobutadiene, η 5 -cyclopentadienyl, η 6 -arene, η 6 -triene, η 7 -tropylium, η 7 -cycloheptatrienyl, η 8 -cyclooctatetraene, or a combination comprising at least one of the foregoing.