Abstract: A high temperature bonded abrasive includes alumina abrasive grits, and a vitreous bond matrix in which the alumina abrasive grits are distributed, the vitreous bond matrix having a cure temperature not less than 1000° C. The alumina abrasive grits include polycrystalline alpha alumina having a fine crystalline microstructure characterized by an alpha alumina average domain size not greater than 500 nm, and the alumina abrasive grits further include a pinning agent that is a dispersed phase in the polycrystalline alpha alumina.

Abstract: Embodiments of the invention relate to methods of fabricating a polycrystalline diamond compacts and applications for such polycrystalline diamond compacts. In an embodiment, a method of fabricating a polycrystalline diamond body includes mechanically milling non-diamond carbon and a sintering aid material for a time and aggressiveness sufficient to form a plurality of carbon-saturated sintering aid particles and sintering a plurality of diamond particles in the presence of the plurality of carbon-saturated sintering aid particles to form the polycrystalline diamond body.

Abstract: A micro end mill includes a shank made of a first material and a cutting tip made of a second, different material that is bonded to the shank. The first material can be, for example, carbide or high speed steel (HSS), and the second material can be, for example, cubic boron nitride (CBN), polycrystalline cubic boron nitride (PCBN), ceramic or polycrystalline diamond (PCD). The micro end mill is manufactured by producing a billet made of Superhard material using laser radiation, bonding the billet to a shank of the end mill, and removing material from the billet using laser radiation to produce a cutting tip made of the Superhard material. The laser radiation may comprise a laser beam encased in a water jet or a laser beam with a non-Gaussian intensity profile.

Abstract: Cutting elements for earth-boring tools may include a substrate and a polycrystalline diamond table secured to the substrate. At least a portion of the polycrystalline diamond table may be formed from a plurality of core particles comprising a diamond material and having an average diameter of between 1 ?m and 500 ?m. A coating material may be adhered to and covering at least a portion of an outer surface of each core particle of the plurality of core particles, the coating material being an amine terminated group. A plurality of nanoparticles selected from the group of carbon nanotubes, nanographite, nanographene, non-diamond carbon allotropes, surface modified nanodiamond, nanoscale particles of BeO, and nanoscale particles comprising a Group VIIIA element may be adhered to the coating material.

Abstract: A composite part comprises (a) a cutting element which comprises super-hard cutting table and a substrate and (b) a metal or alloy layer. Respective first surfaces of the superhard cutting table and the substrate are joined to each other, and the metal or alloy layer is located adjacent to second surfaces of the cutting table and the substrate so as to surround the joined first surfaces of the cutting table and the substrate. The metal or alloy layer and the second surfaces of one or both of the cutting table and substrate are co-operatively shaped substantially to prevent relative movement therebetween. The metal or alloy layer may be used to secure the cutting element within a tool body, and advantageously provides a convenient means to effect that securement, while simultaneously protecting the join between the superhard cutting table and the substrate during the process of securement of the cutting element to the tool body.

Abstract: There is disclosed a method of polishing a peripheral portion of a wafer having a hard film with use of an abrasive film while preventing damage to the abrasive film. The polishing method uses an abrasive film including a base film made of polyimide, a binder made of polyimide, and abrasive grains held by the binder. The polishing method includes: rotating a silicon substrate having a surface on which a silicon carbide film is formed; and removing the silicon carbide film from a peripheral portion of the silicon substrate by pressing the abrasive film at a low force against the silicon carbide film on the peripheral portion of the silicon substrate.

Abstract: An abrasive article comprising a first group including a plurality of shaped abrasive particles overlying a backing, wherein the plurality of shaped abrasive particles of the first group define a first non-shadowing distribution relative to each other.

Abstract: A bonded abrasive tool includes a bonded abrasive body having a bond matrix material with an organic bond material, abrasive grains contained within the bond matrix material, and chopped fiber bundles within the bond matrix material. The tool further has a porosity within the bonded abrasive body, wherein a majority of the porosity includes pores surrounding the chopped fiber bundles.

Abstract: The invention relates to a diamond tool comprising a tool body (1, 2, 3) provided with diamond segments (4) manufactured by sintering and each segment comprising at least one diamond part (5) and a base part (6), or base (6), which base (6) is fixed to the tool body (1, 2, 3), so that the diamond part protrudes from a cutting edge (10) of the tool body in a protruding direction. More specifically a number of notches (7) are arranged to cross through the cutting edge (10) in a lateral direction compared to the protruding direction, and at least one, and preferably all, of the diamond segments (4) are fixed to the tool body (1, 2, 3) through attachment of the base (6) of the diamond segment to at least one notch (7) by fixing methods comprising a base deforming force applied in a lateral direction to the base (6), compared to the protruding direction.

Abstract: The present invention provides a cutting tool that achieves cutting with high precision. The cutting tool of the present invention includes a cutting edge composed of a polycrystalline body including high-pressure-phase hard grains that contain one or more elements selected from the group consisting of boron, carbon, and nitrogen, the polycrystalline body being formed by subjecting a non-diamond carbon material and/or boron nitride, serving as a starting material, to direct conversion sintering under ultra-high pressure and high temperature without adding a sintering aid or a catalyst, in which letting the radius of curvature of the nose of the cutting edge of the cutting tool be R1, the sintered grains constituting the polycrystalline body have an average grain size of 1.2×R1 or less and a maximum grain size of 2×R1 or less.

Abstract: A method of making a superhard construction includes providing a polycrystalline superhard (PCS) structure comprising bonded grains of a superhard material, providing an aggregated mass comprising grains of the superhard material, and providing a substrate having a recess configured for accommodating the PCS structure. The PCS structure is placed into the recess with the aggregated mass of superhard grains positioned adjacent the PCS structure to form an unjoined assembly. Pressure and heat are then applied to the unjoined assembly to join the aggregated mass to the PCS structure and form the superhard construction.

Abstract: A method of making a polycrystalline diamond compact includes mixing a diamond particle feed with a binder to form a mixture, forming the mixture into a precompact, heating the pre-compact in a non-oxidizing atmosphere to substantially drive off the binder, oxidizing the pre-compact in an oxidizing atmosphere at a temperature and for a time sufficient to burn off non-diamond carbon without overoxidizing diamond, and sintering the pre-compact at high pressure and high temperature to form a polycrystalline diamond compact. The method may also include oxidizing the diamond particle feed prior to mixing with the binder.

Abstract: A fixture for etching PCD drill inserts is provided. The fixture design allows the fixture to be injection molded, significantly reducing costs and allowing the fixture to be disposed of after a single use. The fixture allows for faster use and more accurate etching of the PCD insert.

Abstract: Polishing pads with homogeneous bodies having discrete protrusions thereon are described. In an example, a polishing pad for polishing a substrate includes a homogeneous body having a polishing side and a back side. The homogeneous body is composed of a material having a first hardness. A plurality of discrete protrusions is disposed on and covalently bonded with the polishing side of the homogeneous body. The plurality of discrete protrusions is composed of a material having a second hardness different from the first hardness. Methods of fabricating polishing pads with homogeneous bodies having discrete protrusions thereon are also described.

Abstract: A method of manufacturing a bit for a rotary drill, the bit including a drill tip (30), the method including providing a precursor structure (10) comprising substrate body (14) and a super-hard structure (12) joined to an upper surface of the substrate body; cutting a plurality of conformal inserts (20) from the precursor structure (10), each insert (20) comprising a part of the super-hard structure; providing a drill tip (30) configured for receiving the insert (20); and joining the insert to the drill tip (30).

Abstract: Described herein are methods for polishing sapphire surfaces using compositions comprising colloidal silica, wherein the colloidal silica has a broad particle size distribution.

Abstract: Embodiments of the invention relate to polycrystalline diamond compacts (“PDC”) exhibiting enhanced diamond-to-diamond bonding. In an embodiment, PDC includes a sintered substantially single-phase polycrystalline diamond (“PCD”) body consisting essentially of bonded-together diamond grains exhibiting a morphology different than that of a PCD body formed by sintering diamond crystals. A substrate is bonded to the sintered substantially single-phase PCD body. Other embodiments are directed to methods of forming such PDCs, and various applications for such PDCs in rotary drill bits, bearing apparatuses, and wire-drawing dies.

Abstract: A method for making a conditioner disk used in a chemical mechanical polishing (CMP) process comprises applying a first layer of at least one binder over a substrate; disposing a plurality of diamond particles on the first layer of the at least one first binder at the plurality of locations; and fixing the plurality of diamond particles to the substrate by heating the substrate to a raised temperature and then cooling the substrate. The plurality of diamond particles disposed over the substrate are configured to provide a working diamond ratio higher than 50% when the conditioner disk is used in a CMP process.

Abstract: A sheet-like abrasive article includes a resilient backing sheet having opposed major surfaces and a continuous abrasive sheet affixed to the backing sheet. The abrasive sheet includes an abrasive support layer with abrasive particles arranged thereon, thereby defining an abrasive surface. A sanding tool assembly including such a sheet-like abrasive article is also disclosed.

Abstract: An apparatus and associated method for constructing an abrading tool having a desired surface texture for a lapping surface of the tool. The abrading tool has a platen defining an external surface and a cavity intersecting the external surface. An adhesive is disposed in the cavity. An abrasive member is adhered at a proximal end thereof to the platen in the cavity by the adhesive so that the abrasive member extends beyond the external surface at a distal end thereof to define the lapping surface.

Abstract: The specification relates to a gemstone setting. The gemstone setting includes a gemstone, a mounting surface and a braze joint. The braze joint is formed from a reactive metallic alloy with the reactive metallic alloy adhering the gemstone to the mounting surface. The braze joint is substantially concealed from a direct line of sight from a top portion of the gemstone by preventing excessive alloy from getting outside a desired braze area.

Abstract: Superabrasive tools and methods for the making thereof are disclosed and described. In one aspect, superabrasive particles are chemically bonded to a matrix support material according to a predetermined pattern by a braze alloy. The brazing alloy may be provided as a powder, thin sheet, or sheet of amorphous alloy. A template having a plurality of apertures arranged in a predetermined pattern may be used to place the superabrasive particles on a given substrate or matrix support material.

Abstract: An abrasive article comprising: a first body comprising a first bond material having abrasive particles contained within the first bond material, wherein the first body comprising the first bond material comprises a ratio of VAG(1)/VBM(1) of at least about 1.3; a second body comprising a second bond material having abrasive particles contained within the second bond material, wherein the second body comprising the second bond material comprises a ratio of VAG(2)/VBM(2) of less than about 1.3, and wherein VAG is a volume percent of abrasive particles within a total volume of the first or second body respectively and VBM is a volume percent of the first or second bond material within the total volume of the first or second body respectively.

Abstract: A method of making a cutter structure comprising super-hard material defining a rake face topology is provided.

Abstract: A convolute abrasive wheel formed from a spirally wound nonwoven abrasive web. The nonwoven abrasive web including a make coat and abrasive particles having a Vickers indentation hardness of at least 16 Gpa and a toughness of at least 3.0 Mpa m1/2. A first size coat comprising a phenolic resin is applied over the make coat and the abrasive prepolymer is applied over the first size coat.

Abstract: A method of forming an abrasive article includes directing a beam of electromagnetic radiation at a starting location on an abrasive preform comprising a bonding layer and abrasive grains within the bonding layer, and increasing the power of the beam of electromagnetic radiation to a scanning power while directed at the starting location. The method further includes changing the position of the beam relative to the abrasive preform from the starting location to a second location on the abrasive preform.

Abstract: In the production method for abrasive grains according to the invention, an aqueous solution of a salt of a tetravalent metal element is mixed with an alkali solution, under conditions such that a prescribed parameter is 5.00 or greater, to obtain abrasive grains including a hydroxide of the tetravalent metal element.

Abstract: Methods of forming a polycrystalline compact for use in an earth-boring tool include sintering a plurality of hard particles with catalyst material to form a polycrystalline material that includes a plurality of inter-bonded particles of hard material integrally formed with the catalyst material and introducing at least a portion of the polycrystalline material to a reactive material to remove at least a portion of the catalyst material contained within the polycrystalline material. The reactive material may include at least one of a molten glass, an ionic compound, a leaching liquor, and a chemical plasma. The reactive material may be introduced to the polycrystalline material at a temperature of greater than or equal to a melting point thereof.

Abstract: A method of manufacturing grooved polishing layers for use in chemical mechanical polishing pads is provided, wherein the formation of defects in the polishing layers are minimized.

Abstract: Polishing pads for polishing semiconductor substrates using eddy current end-point detection are described. Methods of fabricating polishing pads for polishing semiconductor substrates using eddy current end-point detection are also described.

Abstract: Embodiments of the invention relate to polycrystalline diamond compacts (“PDCs”) and methods of fabricating such PDCs. In an embodiment, a PDC includes a substrate and a preformed polycrystalline diamond table including an interfacial surface bonded to the substrate and an opposing working surface. The preformed polycrystalline diamond table includes a proximal region extending from the interfacial surface to an intermediate location within the preformed polycrystalline diamond table that includes a metallic infiltrant infiltrated from the substrate, and a distal region extending from the working surface to the intermediate location that is substantially free of the metallic infiltrant. A boundary exists between the proximal and distal regions that has a nonplanar irregular profile characteristic of the metallic infiltrant having been infiltrated into the preformed polycrystalline diamond table.

Abstract: Embodiments of the invention relate to polycrystalline diamond compacts (“PDCs”) comprising a polycrystalline diamond (“PCD”) table including a thermally-stable region having at least one low-carbon-solubility material disposed interstitially between bonded diamond grains thereof, and methods of fabricating such PDCs. In an embodiment, a PDC includes a substrate, and a PCD table bonded to the substrate. The PCD table includes a plurality of diamond grains exhibiting diamond-to-diamond bonding therebetween and defining a plurality of interstitial regions. The PCD table further includes at least one low-carbon-solubility material disposed in at least a portion of the plurality of interstitial regions. The at least one low-carbon-solubility material exhibits a melting temperature of about 1300° C. or less and a bulk modulus at 20° C. of less than about 150 GPa.

Abstract: An abrasive article includes a shaped abrasive particle including a body having a first height (h1) at a first end of the body defining a corner between an upper surface, a first side surface, and a second side surface, and a second height (h2) at a second end of the body opposite the first end defining an edge between the upper surface and a third side surface, wherein the average difference in height between the first height and the second height is at least about 50 microns. The body also includes a bottom surface defining a bottom area (Ab) and a cross-sectional midpoint area (Am) defining an area of a plane perpendicular to the bottom area and extending through a midpoint of the particle, the body has an area ratio of bottom area to midpoint area (Ab/Am) of not greater than about 6.

Abstract: Methods of making a superabrasive tool precursor are disclosed, along with such precursors and associated tools. Particularly, methods are disclosed for orienting superabrasive particles in a viscous binding material in order to provide tools based thereupon and having desired performance characteristics.

Abstract: The present invention discloses a cleaning cloth, an abrasive cloth, a cleaning buff and an abrasive buff which are each formed by knitting/weaving bamboo fibers having excellent cleaning, abrasive capacity and excellent ignition resistance.

Abstract: An abrasive element comprises a body of crystalline abrasive material. The body has an array of cutting elements formed of crystalline abrasive material which projects from a surface of the body. The shape, size and form of the projections is controlled in the production process. The body may be a natural or synthetic crystal. The body may be a film formed by deposition. The body may be diamond or cubic boron nitride. The body may be monocrystalline or polycrystalline. The projections may be aligned along a crystallographic plane or planes.

Abstract: An abrasive article including a bonded abrasive having a body formed of abrasive grains contained within a bond material, wherein the body grinds a superabrasive workpiece having an average Vickers hardness of at least about 5 GPa at an average specific grinding energy (SGE) of not greater than about 350 J/mm3, at a material removal rate of at least about 8 mm3/sec, and wherein grinding is a centerless grinding operation.

Abstract: A method for fabricating a semiconductor device includes (a) depositing an insulating film on a semiconductor substrate; (b) forming a recess in the insulating film; (c) depositing a conductive film on the insulating film while filling the recess with the conductive film; and (d) polishing the conductive film. Step (d) includes a first polishing substep of using a first polisher pad conditioned with a first dresser and a second polishing substep of using a second polisher pad conditioned with a second dresser different from the first dresser.

Abstract: A method of forming an abrasive article includes providing a green body having abrasive particles including microcrystalline alumina, and heating the green body via microwave radiation to form a bonded abrasive body including the abrasive particles and a bond material comprising a vitreous phase.

Abstract: In an embodiment, a polycrystalline diamond compact includes a substrate and a preformed polycrystalline diamond table having an upper surface, an interfacial surface, and at least one side surface extending therebetween. The interfacial surface of the polycrystalline diamond table is bonded to the substrate. The polycrystalline diamond table includes bonded diamond grains defining interstitial regions. The polycrystalline diamond table includes a first region extending inwardly from at least a portion of the upper surface and at least a portion of the at least one side surface. The first region spaced from the interfacial surface. The polycrystalline diamond table includes at least a second region extending inwardly from the interfacial surface to the upper surface. The first region includes at least a first infiltrant disposed interstitially between the bonded diamond grains thereof. The second region includes at least a second infiltrant disposed interstitially between the bonded diamond grains thereof.

Abstract: A method of forming a substantially homogeneous suspension of nanodiamond particles and microdiamond particles is disclosed The method includes disposing a first functional group on a plurality of nanodiamond particles to form derivatized nanodiamond particles, and combining the derivatized nanodiamond particles with a plurality of microdiamond particles and a solvent to form a substantially homogeneous suspension of the derivatized nanodiamond particles and microdiamond particles in the solvent. A method of making an article is also disclosed. The method includes forming a superabrasive polycrystalline diamond compact by combining: a plurality of derivatized nanodiamond particles, a plurality of derivatized microdiamond particles having an average particle size greater than that of the derivatized nanodiamond particles, and a metal solvent-catalyst. The method also includes combining the polycrystalline diamond with a substrate comprising a ceramic.

Abstract: Methods of forming a cutting element include immersing at least a portion of a volume of polycrystalline diamond in a liquid electrolytic solution, applying a voltage between the polycrystalline diamond and a cathode in contact with the liquid electrolytic solution, and removing at least a portion of metal catalyst from interstitial spaces between adjacent diamond grains. The polycrystalline diamond includes interbonded diamond grains and metal catalyst particles in the interstitial spaces between adjacent grains of polycrystalline diamond material. Some methods include forming a barrier over a portion of a volume of polycrystalline diamond and transferring at least a portion of the metal catalyst from a portion of the polycrystalline diamond not covered by the barrier to a liquid electrolyte. Some methods include encapsulating a volume of polycrystalline diamond in a barrier and selectively removing a portion of the barrier from a first portion of the volume of polycrystalline diamond.

Abstract: A method of making an abrasive particle distribution includes: sorting an initial lot of abrasive particles into a plurality of sublots including first and second sublots of the abrasive particles according to their average particle diameter and aspect ratio, and combining the first and second sublots. The initial lot conforms to an abrasives industry specified nominal grade. The first sublot has an average particle diameter and aspect ratio less than the second sublot. A sum of the first sublot and the second sublot contains fewer abrasive particles than the initial lot. The resultant abrasive particle distribution and abrasive articles including the same are also disclosed.

Abstract: Embodiments of methods for measuring one or more magnetic characteristics of a polycrystalline diamond (“PCD”) element and use of those results to adjust one or more process parameters for fabricating a PCD element and/or for quality control are disclosed. Measurements of one or more magnetic characteristics may be used to adjust process parameters for fabrication of a PCD element to, for example, control catalyst concentration and/or the extent of diamond-to-diamond bonding in the PCD element.

Abstract: A method of dressing a wheel using a polycrystalline CVD synthetic diamond dresser, the method comprising: rotating the wheel; and contacting a working surface of the wheel with a working surface of the polycrystalline CVD synthetic diamond dresser, wherein the polycrystalline CVD synthetic diamond dresser is oriented such that a leading edge of the working surface of the polycrystalline CVD synthetic diamond dresser is formed of larger grains than a trailing edge of the working surface of the polycrystalline CVD synthetic diamond dresser.

Abstract: A cloth backing for an abrasive article is treated by combining a phenolic resin, a latex and a colloidal silicon oxide composition to prepare a colloidal formulation, which is then applied to the cloth backing and cured. Coated abrasive articles are formed by applying a make coat formulation to the treated cloth backing, applying an abrasive and then curing the make coat formulation.

Abstract: Cutting elements for use with earth-boring tools include a cutting table having a base surface and a substrate having a support surface. An intermediate structure and an adhesion layer extend between the base surface of the cutting table and the support surface of the substrate. Earth-boring tools include such cutting elements. Methods for fabricating cutting elements for use with earth-boring tools include forming an intermediate structure on and extending from a support surface of a substrate and adhering a cutting table comprising a superabrasive material to the support surface of the substrate.

Abstract: A system for producing thermally stable cutting elements may include a heat source, a pressure vessel, at least one polycrystalline diamond body attached to a carbide substrate, and a leaching agent is disclosed, wherein the heat source includes a container comprising at least one receiving mechanism and at least one retention mechanism, and wherein the carbide substrate is disposed in the at least one receiving mechanism of the pressure vessel, and wherein the leaching agent is disposed in the pressure vessel, and wherein the leaching agent removes the catalyzing material from the interstitial spaces interposed between the diamond particles of the at least one polycrystalline diamond body, and wherein the at least one retention mechanism of the pressure vessel seals at least a portion of the carbide substrate into the at least one receiving mechanism and prevents the leaching agent from contacting at least a portion of the carbide substrate.

Abstract: An abrasive article having at least one edge, and a dross ridge extending from at least a portion of the edge. The edge can define the periphery of the abrasive article or an aperture formed in a portion the abrasive article. The dross ridge can have a width dimension of at least 101 ?m, and not greater than about 500 ?m. The dross ridge can also have height dimension of at least about 1 ?m, and not greater than about 50 ?m. The edge and the dross ridge can be formed by a laser.

Abstract: Embodiments of the invention relate to methods of fabricating a polycrystalline diamond compacts and applications for such polycrystalline diamond compacts. In an embodiment, a method of fabricating a polycrystalline diamond compact includes at least saturating a sintering aid material with non-diamond carbon to form a carbon-saturated sintering aid material and sintering a plurality of diamond particles in the presence of the carbon-saturated sintering aid particles to form a polycrystalline diamond table.