This disclosure relates to a method of making a shaped tool component from a precursor sintered body comprising polycrystalline diamond (PCD). The sintered body has a PCD table joined to a substrate, and the PCD table varies in depth. The resulting shaped tool component thus also has a PCD layer with varying depth. A method of making a shaped tool component comprising polycrystalline diamond (PCD), comprising the steps: h. Adding a diamond feed stock to a refractory cup; i. Adding a p re-shaped cemented carbide body to the refractory cup adjacent the diamond feed stock; j. Compacting the diamond feed stock and cemented carbide body to form a green body; k. Sintering the green body at a temperature between 1400? C. to 2100? C. and at a pressure of at least 7 GPa, for at least 30 seconds to form a sintered PCD precursor body that comprises a PCD table sinter-joined to the cemented carbide substrate at an interface;

A method of manufacturing a susceptor includes preparing an electrostatic chuck (ESC) and a base plate, each including a gas channel, preparing a bush-filter assembly disposed between the gas channel in the ESC and the gas channel in the base plate, and coupling the ESC to the base plate in such a manner that a portion of the bush-filter assembly is accommodated in a first accommodation part formed in a surface of the ESC and that a remaining portion of the bush-filter assembly is at least partially accommodated in a second accommodation part formed in a surface of the base plate.

A method of forming a super hard polycrystalline construction comprises forming a liquid suspension of a first mass of nano-ceramic particles and a mass of particles or grains of super hard material having an average particle or grain size of 1 or more microns, dispersing the particles or grains in the liquid suspension to form a substantially homogeneous suspension, drying the suspension to form an admix of the nano-ceramic and super hard grains or particles, and forming a pre-sinter assembly comprising the admix. The pre-sinter assembly is then sintered to form a body of polycrystalline super hard material comprising a first fraction of super hard grains and a second fraction, the nano-ceramic particles forming the second fraction. The super hard grains are spaced along at least a portion of the peripheral surface by one or more nano-ceramic grains, the super hard grains having a greater average grain size than that of the grains in the second fraction which have an average size of less than around 999 nm.

Polycrystalline diamond includes a working surface and a peripheral surface extending around an outer periphery of the working surface. The polycrystalline diamond includes a first volume including an interstitial material and a second volume having a leached region that includes boron and titanium. A method of fabricating a polycrystalline diamond element includes positioning a first volume of diamond particles adjacent to a substrate, the first volume of diamond particles including a material that includes a group 13 element, and positioning a second volume of diamond particles adjacent to the first volume of diamond particles such that the first volume of diamond particles is disposed between the second volume of diamond particles and the substrate, the second volume of diamond particles having a lower concentration of material including the group 13 element than the first volume of diamond particles. Various other articles, assemblies, and methods are also disclosed.

Polycrystalline diamond may include a working surface and a peripheral surface extending around an outer periphery of the working surface. The polycrystalline diamond includes a first volume including an interstitial material and a second volume having a leached region that includes boron and titanium. A method of fabricating a polycrystalline diamond element may include positioning a first volume of diamond particles adjacent to a substrate, the first volume of diamond particles including a material that includes a group 13 element, and positioning a second volume of diamond particles adjacent to the first volume of diamond particles such that the first volume of diamond particles is disposed between the second volume of diamond particles and the substrate, the second volume of diamond particles having a lower concentration of material including the group 13 element than the first volume of diamond particles.

This disclosure relates to a method of making a polycrystalline diamond (PCD) body comprising a PCD table with a height of at least 10 mm.

A sintered polycrystalline cubic boron nitride (PCBN) body includes between 40 and 85 vol % of cubic boron nitride (cBN) particles and between 15 and 60 vol % of a binder phase. The binder phase has at least one metal oxide and at least one metal nitride. The metal oxide includes between 20 and 100 vol % of zirconium oxide (ZrO.sub.2) and up to 80 vol % of alumina (Al.sub.2O.sub.3) counted as a volume percentage of the total metal oxide content of the binder phase. The metal nitride includes aluminium nitride (AlN) and at least one metal nitride selected from the group consisting of vanadium nitride (VN), niobium nitride (NbN) and hafnium nitride (HfN). The content of the selected metal nitride selected is at least 10 vol % of the total binder phase, and the content of the metal oxide is at least 10 vol % of the total binder phase.

Polycrystalline diamond compacts having parting compound within the interstitial volumes are disclosed herein. In one embodiment, a polycrystalline diamond compact includes a polycrystalline diamond body having a plurality of diamond grains bonded together in diamond-to-diamond bonds, interstitial volumes positioned between the adjacent diamond grains, and a parting compound positioned in at least a portion of the interstitial volumes of the polycrystalline diamond body.

A cBN sintered material cutting tool is provided. The cBN cutting tool includes a cutting tool body, which is a sintered material including cBN grains and a binder phase, wherein the sintered material comprises: the cubic boron nitride grains in a range of 40 volume % or more and less than 60 volume %; and Al in a range from a lower limit of 2 mass % to an upper limit Y, satisfying a relationship, Y=0.1X+10, Y and X being an Al content in mass % and a content of the cubic boron nitride grains in volume %, respectively, the binder phase comprises: at least a Ti compound; Al.sub.2O.sub.3; and inevitable impurities, the Al.sub.2O.sub.3 includes fine Al.sub.2O.sub.3 grains with a diameter of 10 nm to 100 nm dispersedly formed in the binder phase, and there are 30 or more of the fine Al.sub.2O.sub.3 grains generated in an area of 1 m1 m in a cross section of the binder phase.

Embodiments relate to polycrystalline diamond compacts (PDCs) and methods of manufacturing such PDCs in which an at least partially leached polycrystalline diamond (PCD) table is infiltrated with a low viscosity cobalt-based alloy infiltrant. In an embodiment, a method includes forming a PCD table in the presence of a metal-solvent catalyst in a first high-pressure/high-temperature (HPHT) process. The method includes at least partially leaching the PCD table to remove at least a portion of the metal-solvent catalyst therefrom to form an at least partially leached PCD table. The method includes subjecting the at least partially leached PCD table and a substrate to a second HPHT process effective to at least partially infiltrate the at least partially leached PCD table with a cobalt-based alloy infiltrant having a composition at or near a eutectic composition of the cobalt-based alloy infiltrant.