Abstract: An insert includes a cBN sintered compact including cBN particles and a binder phase binding the cBN particles. The cBN particles occupy 60% or more of the cross-sectional area of the cBN sintered compact. The binder phase contains Al compound particles containing at least one of AlN or Al2O3. A particle distribution of the Al compound particles in a cumulative distribution based on the number of the Al compound particles in a cross section of the cBN sintered compact is as follows. The proportion of the Al compound particles with the particle diameter of 0.3 ?m or larger is 5% or more, and the proportion of the Al compound particles with the particle diameter of 0.5 ?m or larger is less than 5%.

Abstract: Various shaped abrasive particles are disclosed. Each shaped abrasive particle includes a body having at least one major surface and a side surface extending from the major surface.

Abstract: This disclosure relates to a high cBN content polycrystalline cubic boron nitride, PCBN, material. The binder matrix material comprises 2 to 15 wt. % titanium diboride (TiB2).

Abstract: A method for applying an abrasive comprises: applying, to a substrate, the integral combination of: a self-braze material; and an abrasive embedded in the self-braze material; and securing the combination to the substrate.

Abstract: A shaped ceramic abrasive particle, in particular on the basis of alpha-Al2O3, includes at least three faces, at least two faces of which form a common vertex on which at least one corner common to the three faces lies. The abrasive particle has at least one structural weakening element. The disclosure also relates to an abrasive article including the abrasive particles, and a method for producing the abrasive particles.

Abstract: The object of the present invention is to provide silicon doped metal oxide particles for UV absorption, which average molar absorption coefficient in the wavelength range of 200 nm to 380 nm, is enhanced. Provided is silicon doped metal oxide particles in which the metal oxide particles are doped with silicon, wherein an average molar absorption coefficient in the wavelength range of 200 nm to 380 nm, of a dispersion in which the silicon doped metal oxide particles are dispersed in a dispersion medium, is improved as compared with similar metal oxide particles not doped with silicon.

Abstract: Various shaped abrasive particles are disclosed. Each shaped abrasive particle includes a body having at least one major surface and a side surface extending from the major surface. The side surface can includes a toothed portion. The toothed portion can comprise a plurality of teeth. Each one of the teeth can have the same height.

Abstract: A cutting tool comprising a base material and a coating arranged on the base material; wherein: the coating comprises an ?-Al2O3 layer composed of a plurality of ?-Al2O3 particles; the average particle diameter a of the ?-Al2O3 particles in a first region of the ?-Al2O3 layer is 0.10 ?m or more and 0.30 ?m or less; the average particle diameter b of the ?-Al2O3 particles in a second region of the ?-Al2O3 layer is 0.30 ?m or more and 0.50 ?m or less; the average particle diameter c of the ?-Al2O3 particles in a third region of the ?-Al2O3 layer is 0.30 ?m or more and 0.50 ?m or less; and the ratio b/a is 1.5 or more and 5.0 or less.

Abstract: An elongate shaped abrasive particle comprises an elongate shaped ceramic body having opposed first and second ends joined to each other by at least two longitudinal sidewalls. At least one of the at least two longitudinal sidewalls is concave along its length. At least one of the first and second ends is a fractured surface. Methods of making elongate shaped abrasive particles and abrasive articles including them are also disclosed.

Abstract: An apparatus is disclosed as including a first material volume with at least a hardened portion and a second material volume that includes at least two layers. The first material volume is composed of at least a hardenable alloy of steel. The at least two layers is located adjacent to a first surface comprising the hardened portion of the first material volume. The at least two layers includes a first layer composed of at least a ductile low-carbon alloy of steel and a second layer composed of at least a cobalt-based hardfacing over the first layer. The apparatus is applicable in preparing shear ram blocks and shear ram blades to provide a hardened blade edge with an adjacent hardfacing surface.

Abstract: A handle configured to be attached to a pumice stone. The handle includes a gripping portion and a post extending from the gripping portion. The post is configured to support the pumice stone. The post includes a support member, a series of ribs spaced apart along a length of the support member, and a series of cavities defined between adjacent ribs. The cavities are configured to accommodate an adhesive for coupling the post of the handle to the pumice stone.

Abstract: A structured abrasive article comprises a plurality of shaped abrasive composites disposed on and secured to a major surface of a backing. The shaped abrasive composites comprise magnetizable abrasive particles retained in an organic binder. On a respective basis, each of the magnetizable abrasive particles has a ceramic body with a magnetizable layer disposed on at least a portion thereof. Methods of making and using the structured abrasive articles are also disclosed.

Abstract: The present invention relates to sintered platelet-like randomly shaped abrasive particles based on alpha alumina having a hardness HV of at least 20 GPa and a crystal structure with an average crystal size between 100 nm and 300 nm, whereby the abrasive particles comprise a body having a first surface and a second surface opposite to the first surface, both surfaces are separated from each other by a randomly shaped sidewall having a thickness (T) between 20 ?m and 500 ?m.

Abstract: An abrasive article including a substrate, a first bonding material including metal overlying the substrate, abrasive particles overlying the substrate and coupled to the first bonding material, and a second bonding material including a metal and phosphorus overlying at least a portion of the first bonding material.

Abstract: A polycrystalline cubic boron nitride comprising 98.5% by volume or more of cubic boron nitride, wherein the cubic boron nitride has a dislocation density of more than 8×1015/m2, the polycrystalline cubic boron nitride comprises a plurality of crystal grains, and the plurality of crystal grains have a median diameter d50 of an equivalent circle diameter of 0.1 ?m or more and 0.5 ?m or less.

Abstract: Disclosed herein, in certain embodiments, are composite materials, methods, tools and abrasive materials comprising a tungsten-based metal composition, a tungsten carbide, and an alloy. In some cases, the composite materials or matrix are resistant to oxidation.

Abstract: A method of producing a cubic boron nitride sintered material includes: forming an organic cubic boron nitride powder by attaching an organic substance onto a cubic boron nitride source material powder; preparing a powder mixture including more than or equal to 85 volume % and less than 100 volume % of the organic cubic boron nitride powder and a remainder of a binder source material powder by mixing the organic cubic boron nitride powder and the binder source material powder, the binder source material powder including WC, Co and Al; and obtaining the cubic boron nitride sintered material by sintering the powder mixture.

Abstract: A polishing liquid for polishing a surface to be polished containing a tungsten material, the polishing liquid comprising abrasive grains; a polymer having a cationic group at the terminal; an oxidizing agent; a metal oxide-dissolving agent; and water, in which the polymer has a structural unit derived from an unsaturated carboxylic acid, a weight average molecular weight of the polymer is 20000 or less, and a pH is less than 5.0.

Abstract: An abrasive slurry composition for chemical mechanical planarization/polishing (CMP) is provided. The abrasive slurry includes colloidal alumina, a dispersant, and a pH buffer. The colloidal alumina has a particle size of between about 5 nm and about 100 nm. The colloidal alumina may be alpha phase material having a first hardness of about 9 Mohs, or gamma phase material having a second hardness of about 8 Mohs. The abrasive slurry may further include polyacrylic acid (PAA), a down-force enhancer, or a polish-rate inhibitor.

Abstract: A coated cutting tool includes a substrate of cemented carbide, cermet, cBN, ceramics or HSS and a coating of a nitride layer, which is a High Power Impulse Magnetron Sputtering (HIPIMS) deposited layer of a nitride of one or more of Ti, Zr, Hf, V, Ta, Nb, Cr, Si and Al, and a HIPIMS-deposited oxide layer being an (AlaMe1?a)2O3 layer, 0.05?a?1, wherein Me is one or more of Ti, Mg, Ag, Zr, Si, V, Fe, Hf, B and Cr. The oxide layer is situated above the nitride layer. Also, a method is disclosed for producing a coated cutting tool having the nitride layer and oxide layer, the nitride layer and the oxide layer being deposited by a HIPIMS process.

Abstract: A coated cutting tool comprising a substrate and a coating layer formed on a surface of the substrate, the coating layer including an alternating laminate structure in which two or more compound layers of each of two or three or more kinds, each kind having a different composition, are laminated in an alternating manner, wherein: the alternating laminate structure is constituted by: a compound layer containing a compound having a composition represented by formula (1) below: (TixMySiz)N??(1) [wherein M denotes an element of at least one kind selected from the group consisting of Zr, Hf, V, Nb, Ta, Cr, Mo, W and Al, x denotes an atomic ratio of Ti based on a total of Ti, an element denoted by M and Si, y denotes an atomic ratio of the element denoted by M based on a total of Ti, the element denoted by M and Si, z denotes an atomic ratio of Si based on a total of Ti, the element denoted by M and Si, x satisfies 0.20?x?0.50, y satisfies 0.20?y?0.50, z satisfies 0.03?z?0.

Abstract: An alumina sintered body including an inner layer in which alumina crystal grains contained have an average aspect ratio of 1.0 to 2.0 and an outer layer which covers at least a part of the inner layer from outside and in which alumina crystal grains contained have an average aspect ratio of more than 2.0, the alumina sintered body being free from silicon except unavoidable impurities.

Abstract: The present disclosure relates generally to coated abrasive articles that include a tribological performance enhancing composition in a make coat, a size coat, a supersize coat, or combinations thereof, as well as methods of making coated abrasive articles. The present disclosure also relates to coated abrasive articles including a supersize coating comprising a sulfide scavenging composition and/or a crosslinked zinc acrylic binder, as well as methods for making and using such abrasive articles. The present disclosure also relates generally to abrasive articles that include aggregates having an anti-wear composition or grinding aid disposed on or within the aggregates.

Abstract: A surface-coated cutting tool includes a base material and a coating film provided on a surface of the base material, wherein the coating film includes a first alternating layer provided on the base material and a second alternating layer provided on the first alternating layer, the first alternating layer includes A and B layers, the second alternating layer includes C and D layers, each of one or plurality of the A layers is composed of a nitride or carbonitride of AlaCrbM1(1-a-b), each of one or plurality of the B layers is composed of a nitride or carbonitride of AlcTidM2(1-c-d), each of one or plurality of the C layers is composed of a nitride or carbonitride of TieSifM3(1-e-f), and each of one or plurality of the D layers is composed of a nitride or carbonitride of TigSihM4(1-g-h).

Abstract: A cam follower is provided. The cam follower includes a polycrystalline diamond element, including an engagement surface. The engagement surface of the polycrystalline diamond element is positioned on the cam follower for sliding engagement with an opposing engagement surface of a cam. The cam includes at least some of a diamond reactive material.

Abstract: There is provided a non-contacting seal assembly for a gas turbine engine, having a housing that houses a sealing ring; and a counter component cooperating with the sealing ring. The sealing ring and the counter component are rotatable relative to each other about a central axis and define sealing faces circumferentially extending around the central axis. The sealing faces face each other and are spaced apart from each other by a controlled gap. At least one of the sealing faces is coated with a non-abradable material. A method of operating a non-contacting seal assembly is also provided.

Abstract: A coated cutting tool comprising a substrate and a coating layer provided on a surface of the substrate, wherein: the coating layer comprises at least one ?-type aluminum oxide layer; and a texture coefficient TC (0,0,12) of a (0,0,12) plane of the ?-type aluminum oxide layer is from 4.0 or more to 8.4 or less; and a texture coefficient TC (1,0,10) of a (1,0,10) plane thereof is from 0.4 or more to 3.0 or less.

Abstract: A sintered body includes cubic boron nitride grains as hard phase grains, and has a thermal conductivity of less than 20 W·m?1·K?1, for cutting a nickel-based heat-resistant alloy formed of crystal grains having a coarse grain size represented by a grain size number of 5 or less defined by ASTM standard E112-13. A cutting tool includes this sintered body. Accordingly, the sintered body having high fracture resistance in addition to high wear resistance, as well as the cutting tool including the sintered body are provided.

Abstract: In one aspect, articles are described comprising wear resistant coatings employing one or more composite refractory layers. For example, a coated article described herein comprises a substrate and a coating deposited by CVD adhered to the substrate, the coating including a multiphase refractory layer comprising an alumina phase and a zirconia phase, wherein the zirconia phase has a texture coefficient for the (200) growth direction, TC(200), greater than 4.

Abstract: A method for applying an abrasive comprises: applying, to a substrate, the integral combination of: a self-braze material; and an abrasive embedded in the self-braze material; and securing the combination to the substrate.

Abstract: A molding material is provided which, despite containing a ceramic, enables efficient molding for producing high-density molded articles. The present invention provides a molding material to be used in powder laminate molding. This molding material contains a first powder which contains a ceramic, and a second powder which contains a metal. Further the first powder and the second powder are bonded by sintering to configure granulated sintered particles. The granule strength of the granulated sintered particles is greater than 1 MPa and less than 10,000 MPa.

Abstract: A coated cutting tool comprising a substrate and a coating layer formed on a surface of the substrate, the coating layer comprising a first laminate structure and a second laminate structure, wherein: the first laminate structure has a laminate structure in which predetermined compound layers of two kinds, each having a different composition, are laminated in an alternating manner; the first laminate structure satisfies a predetermined condition; the second laminate structure has a laminate structure in which a first compound layer comprising a predetermined oxide and/or oxynitride and a second compound layer having a predetermined composition are laminated in an alternating manner; and an average thickness of each compound layer which constitutes the first laminate structure, an average thickness of each compound layer which constitutes the second laminate structure, and a thickness of the coating layer in its entirety each fall within a predetermined range.

Abstract: A coated cutting tool comprising a substrate and a coating layer formed on a surface of the substrate, the coating layer including at least one ?-type aluminum oxide layer, wherein: in the ?-type aluminum oxide layer, a texture coefficient TC (0,0,12) of a (0,0,12) plane falls within a predetermined range; a residual stress value in a (1,1,6) plane of the ?-type aluminum oxide layer falls, at least in part thereof, within a predetermined range; and a residual stress value in a (4,0,10) plane of the ?-type aluminum oxide layer falls, at least in part thereof, within a predetermined range.

Abstract: A method of making magnetizable abrasive particles includes providing a slurry layer disposed on a substrate. The slurry layer has an exposed surface and comprises magnetic particles, a binder precursor, and a liquid vehicle. Abrasive particles are electrostatically contacted with the slurry layer such that they are aligned substantially oriented perpendicular to the surface of the substrate, and are partially embedded within the slurry layer. The liquid vehicle is at least partially removed from the slurry layer and the binder precursor is converted into a binder to provide a magnetizable layer comprising the magnetic particles partially embedded in the binder. The magnetizable abrasive particles are separated from the releasable substrate. Each magnetizable abrasive particle respectively comprises a portion of the magnetizable layer disposed on a portion of an abrasive particle.

Abstract: A method of processing a polycrystalline diamond material includes exposing at least a portion of a polycrystalline diamond material to a processing solution, the polycrystalline diamond material including a metallic material disposed in interstitial spaces defined within the polycrystalline diamond material. The method includes exposing an electrode to the processing solution, applying a positive charge to the polycrystalline diamond material, and applying a negative charge to the electrode. An assembly for processing a polycrystalline diamond body includes a polycrystalline diamond body and an electrode that are in electrical communication with a volume of processing solution, and a power source configured to apply a positive charge to the polycrystalline diamond body and a negative charge to the electrode.

Abstract: A sintered vitrified superfinishing grindstone is provided which is a sintered product which is obtained by compression molding of a mixed powder of: a sinterable vitrified binder composed of a powder of a borosilicate glass composition; hard abrasive grains; and soft abrasive grains; and which includes bonded portions formed by necking due to heat compression, between particles of the powder of the borosilicate glass composition which are in contact with each other; and wherein the sinterable vitrified binder contains from 94 to 100% by mass of a powder composed of a low-melting-point borosilicate glass composition containing from 35 to 55% by mole of SiO2; from 3 to 5% by mole of Al2O3; from 10 to 35% by mole of B2O3; and from 25 to 30% by mole of R2O+RO.

Abstract: A polycrystalline-diamond cutting element for a drill bit of a downhole tool. The cutting element includes a substrate and a diamond table bonded to the substrate. The diamond table includes a diamond filler with at least one leached polycrystalline diamond segment packed therein along at least one working surface thereof. The cutting element may be formed by positioning the diamond table on the substrate and bonding the diamond table onto the substrate such that the polycrystalline diamond segment is positioned along at least one working surface of the diamond table. A spark plasma sintering or double press operation may be used to bond the diamond table onto the substrate.

Abstract: The present invention relates to a polishing agent including: metal oxide particles; an organic acid having a monodentate ligand; a nonionic polymer; and water, in which the polishing agent has a pH of from 3.0 to 7.0, and the nonionic polymer includes at least one selected from the group consisting of polyglycerin, polyoxyethylene polyglyceryl ether and polyoxypropylene polyglyceryl ether.

Abstract: A method of forming a shaped abrasive particle having a body formed by an additive manufacturing process.

Abstract: A polishing liquid comprising an abrasive grain, an additive, and water, wherein the abrasive grain includes a hydroxide of a tetravalent metal element, produces absorbance of 1.00 or more and less than 1.50 for light having a wavelength of 400 nm in an aqueous dispersion having a content of the abrasive grain adjusted to 1.0 mass %, and produces absorbance of 0.035 or more for light having a wavelength of 400 nm in a liquid phase obtained when centrifuging an aqueous dispersion having a content of the abrasive grain adjusted to 1.0 mass % for 50 minutes at a centrifugal acceleration of 1.59×105 G.

Abstract: An abrasive article including a body including a bond material having an inorganic material including a ceramic, abrasive agglomerates including silicon carbide contained within the bond material, and a permeability of at least 60.

Abstract: The present invention relates to a high resolution additive manufacturing method, including: creating a rigid shell of a stable material on all surfaces except for a sprue of a three dimensional (3D) polymer part using a chemical vapor deposition (CVD) process which includes: depositing the stable material at a process temperature of 100° C. or less, and operating at, or near, atmospheric pressure; and removing the 3D polymer part by accessing the inside of the rigid shell through the sprue to allow dissolution of the 3D polymer part, thereby leaving a replicated rigid shell of the stable material.

Abstract: The present invention is objected to polish the surface of the object material with a high quality at a high polishing rate. The object surface is polished using a wet polishing method. Slurry is produced by scattering abrasive particles into pure water. In the abrasive particle, where components which has a mechanochemical effect and which reacts to the friction heat generated in polishing the object material are joined with each other and integrated to a particle. There, respective component is joined with each other using a mechanical alloying process, while maintaining the inherent material properties. When the slurry is used in a lapping process of sapphire, silicon carbide, gallium nitride and the like, the polishing process can be substantially shortened and the processing cost is drastically reduced. Further, it secures a high quality of the polishing surface. The abrasive particle can be used repeatedly in the polishing process.

Abstract: The present disclosure relates to systems and methods for electrochemical metal or other positive ion removal from polycrystalline diamond (PCD), such as PCD used in earth-boring drill bits. PCD used in the systems and methods described herein has an electrical conductivity-enhanced region.

Abstract: PDCs, methods of fabricating the PDCs, and methods of using the PDCs are disclosed herein. The PDCs include a PCD table bonded to a substrate. The PCD table includes an upper surface having a plurality of recessed features formed therein. The plurality of recessed features are configured to attract at least some cracks that form in the PCD table. As such, the plurality of recessed features limit or prevent crack propagation into other portions of the PCD table and limit a volume of the PCD table that spalls. Methods of fabricating the PDCs include partially leaching the PCD table and, after leaching the PCD table, forming the plurality of recessed features in the upper surface thereof. Method of using the PDCs include rotating a PDC that has spalled relative to a rotary drill bit such that a portion of the upper surface of the PDC that has not spalled forms a cutting surface thereof.

Abstract: In an embodiment, a polycrystalline diamond compact includes a substrate, and a polycrystalline diamond (“PCD”) table bonded to the substrate and including an exterior working surface, at least one lateral surface, and a chamfer extending between the exterior working surface and the at least one lateral surface. The PCD table includes bonded diamond grains defining interstitial regions. The PCD table includes a first region adjacent to the substrate and a second leached region adjacent to the first region and extending inwardly from the exterior working surface to a selected depth. At least a portion of the interstitial regions of the first region include an infiltrant disposed therein. The interstitial regions of the second leached region are substantially free of metal-solvent catalyst. The second region is defined by the exterior working surface, the lateral surface, the chamfer, and a generally horizontal boundary located below the chamfer.

Abstract: In one aspect, articles are described comprising wear resistant coatings employing one or more composite refractory layers. For example, a coated article described herein comprises a substrate and a coating deposited by CVD adhered to the substrate, the coating including a multiphase refractory layer comprising an alumina phase and a zirconia phase, wherein the zirconia phase has a texture coefficient for the (200) growth direction, TC(200), greater than 4.

Abstract: To perform polishing while reducing an LPD and preventing contamination with metals, particularly nickel and copper, in final polishing of a silicon wafer. A polishing composition contains abrasives, a water-soluble polymer, a basic compound, a chelating agent, and water, in which, when the particle diameter equivalent to a particle diameter at a cumulative volume of 10% from a smaller particle diameter side is defined as D10, the particle diameter equivalent to a particle diameter at a cumulative volume of 50% from the smaller particle diameter side is defined as D50, and the particle diameter equivalent to a particle diameter at a cumulative volume of 90% from the smaller particle diameter side is defined as D90 in a particle size distribution of particles present in the polishing composition, a value of a coarse particle frequency parameter A defined by (Expression 1) illustrated below is less than 1.

Abstract: A surface-coated cutting tool includes a base material and a coating. A hard layer in the coating includes a plurality of crystal grains having a sodium chloride-type crystal structure. When the angle of intersection between the normal direction to (111) plane that is a crystal plane of the crystal grain and the normal direction to the surface of the base material is measured, a proportion A of the crystal grains having the angle of intersection of 0 degree or more to less than 20 degrees is 50% or more. The length of ?3 grain boundaries is less than 50% of the length of ?3-29 grain boundaries. The crystal grain has a layered structure in which a first layer and a second layer are alternately stacked. The total thickness of the first layer and the second layer adjacent to each other is 3 to 40 nm.

Abstract: Polycrystalline diamond abrasive elements made by incorporating low levels of at least one metal boride, the metal being selected from magnesium, calcium, aluminum, strontium, yttrium, zirconium, hafnium and chromium, and the rare earth metals, particularly cerium and lanthanum. The benefits of adding boron to polycrystalline diamond abrasive compacts are exploited together with simultaneously minimizing or eliminating the detrimental effects of the presence of oxygen.