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Sliding element for use in an engine or chain transmission apparatus
Method for manufacturing a composite wafer having a graphite core, and composite wafer having a graphite core
Graphite material, carbon material for battery electrode, and battery
|| List of recent Graphite-related patents
|Chlorinated vinyl chloride resin composition for extrusion molding|
A chlorinated vinyl chloride resin composition for extrusion molding, characterized by: containing 100 parts by weight of a chlorinated vinyl chloride resin, 3 to 300 parts by weight of a thermally expandable graphite, 3 to 200 parts by weight of an inorganic filler and 20 to 200 parts by weight of a plasticizer; and containing no phosphorus compound (excluding phosphate plasticizer). A chlorinated vinyl chloride resin having a chlorine content of 60 to 72% by weight can be used as the resin component for extrusion molding..
|Sliding element for use in an engine or chain transmission apparatus|
The invention relates to a sliding element for use in a chain transmission apparatus, comprising a sliding contact section for engagement in sliding contact with a chain, wherein the sliding contact section consists of a plastic material comprising a matrix polymer and dispersed therein graphite platelets comprising platelet particles having a thickness of at most 250 nm. The invention relates to an engine comprising a first sliding element in sliding contact with a second element, wherein at least a sliding contact section is made of such a plastic material comprising such thin graphite platelets.
|Method for manufacturing a composite wafer having a graphite core, and composite wafer having a graphite core|
According to an embodiment, a composite wafer includes a carrier substrate having a graphite layer and a monocrystalline semiconductor layer attached to the carrier substrate.. .
|Graphite material, carbon material for battery electrode, and battery|
A graphite material having pores which, when 200 rectangular regions of 6 μm×8 μm are randomly selected in a surface image of the graphite material observed by a scanning electron microscope, in the surface of the graphite material appearing in the regions, a pore appearing on the surface and having an aperture in a shape having a diameter of 15 nm to 200 nm, a circularity degree of 0.75 to 1.0 and a major axis/minor axis ratio of 1.0 to 1.5 is visible in two regions or more. Also disclosed is a carbon material for battery electrodes, a paste for electrodes, an electrode and a lithium ion secondary battery including the graphite material..
|Transition metal hexacyanometallate electrode with water-soluble binder|
A method is provided for fabricating a transition metal hexacyanometallate (tmhcm) electrode with a water-soluble binder. The method initially forms an electrode mix slurry comprising tmhcf and a water-soluble binder.
|Charging member, process cartridge and electrophotographic apparatus|
A charging member including an electro-conductive substrate, an electro-conductive elastic layer, and an electro-conductive surface layer, wherein the elastic layer includes a polymer having a unit derived from ethylene oxide and at least one particle selected from the group consisting of graphite particles and graphitized particles; wherein a particle-exposing portion where the particle is exposed is present on the surface of the elastic layer; the surface of the elastic layer including the particle-exposing portions is coated with the surface layer; the surface layer includes binder resin and resin particles dispersed in the binder resin and has a plurality of protrusions derived from the resin particles on the surface; when the resin particles in the surface layer are orthographically projected onto the surface of the elastic layer, areas other than projected areas of the resin particles on the surface of the elastic layer overlap the particle-exposing portion.. .
|Mount for semiconductor devices using conformable conductive layers, and method|
A mount for semiconductor laser devices comprises thermally conductive anode and cathode blocks on either side of a semiconductor laser device such as a laser diode. Interposed between at least the anode block and the anode of the semiconductor laser device is a sheet of conformable electrically conductive material with high thermal conductivity such as pyrolytic highly-oriented graphite.
|Method for producing graphite sheet|
With a manufacturing method of a graphite sheet, a cavity-forming sheet having a mesh structure or a nonwoven fabric structure is firstly impregnated with polyamide acid and then molded into a sheet. The molded sheet is then heat treated to imidize polyamide acid so as to produce a polyimide sheet composed of polyimide and the cavity-forming sheet disposed in polyimide.
|Direct graphene growth on metal oxides by molecular epitaxy|
Direct growth of graphene on co3o4(111) at 1000 k was achieved by molecular beam epitaxy from a graphite source. Auger spectroscopy shows a characteristic sp2 carbon lineshape, at average carbon coverages from 0.4-3 monolayers.
|Thermally-conductive elastic body|
Disclosed is a thermally-conductive elastic body that effectively dissipates heat generated from a heat generation source such as an electronic product and prevents a phenomenon in which small graphite fragments are separated from (fall off) a graphite layer by completely sealing up the graphite layer that conducts the heat. The thermally-conductive elastic body according to the embodiments of the present disclosure includes an elastic body and a thermally conductive layer that is formed to be wrapped around an external surface of the elastic body, in which the thermally conductive layer includes a first base film and a graphite layer that is internally arranged within an edge region of the first base film, and in which the edge region of the first base film is attached to the elastic body in such a manner that the graphite layer is sealed up..
|Dust emission reduction during metal casting|
A method for reducing dust emissions in a metal or slag casting apparatus, as well as a metal or slag casting apparatus allowing reducing dust emissions, comprising an endless conveyor having a plurality of casting moulds with upper open tops and which endless conveyor is arranged to move said casting moulds in a first section from a casting station to to the casting station, the method comprising (a) providing a casing forming a bottomless box over at least part of the first section of the endless conveyor, (b) injecting within said casing a gas on the surface of the mould with an angle sufficient to blow off loose, solid particles, such as graphite flakes, formed at the surface of the metal, during early stages of the cooling down and to start the solidification of a superficial layer of metal or slag, (c) extracting the gas and the solid particles by suction from within said casing.. .
|Sliding layer for multilayer bearing material|
A sliding layer for a multi-layer bearing material that is free of lead. The sliding layer can include ptfe, sphalerite, and solid lubricants.
|Lead-carbon battery current collector shielding with ported packets|
Provided is an activated carbon lead energy storage/battery containing an improved negative activated electrode packet exhibiting substantially reduced resistance with ported paraffin impregnated expanded graphite foil shielding overlying a cutaway notch in the underlying current collector to permit sulfuric acid electrolyte infiltration.. .
|Fine carbon fiber, fine short carbon fiber, and manufacturing method for said fibers|
A novel fine carbon fiber produced by vapor growth, in which a graphite-net plane consisting of carbon atoms alone forms a temple-bell-shaped structural unit including a closed head-top part and a body-part with an open lower-end, in which an angle θ formed by a generatrix of the body-part and a fiber axis is less than 15°, 2 to 30 of the temple-bell-shaped structural units are stacked sharing a central axis to form an aggregate, and the aggregates are connected head-to-tail with a distance to form a fiber. Fine short carbon fibers with excellent dispersibility can be obtained by shortening the fine carbon fiber..
|Method for producing carbonaceous film and method for producing graphite film|
Disclosed herein is a method for producing a roll-shaped carbonaceous film by polymer pyrolysis while suppressing the occurrence of fusion bonding in the roll-shaped carbonaceous film. The carbonaceous film production method includes the step of heat-treating a polymer film wound into a roll, wherein, at a temperature equal to or higher than the pyrolysis onset temperature of the polymer film but equal to or lower than a temperature at which the weight of the polymer film is reduced by 40% as compared to that before heat treatment, the roll-shaped polymer film has (2-1) a gap between layers of the polymer film so that a value determined for the whole roll-shaped polymer film by dividing the thickness of the gap between adjacent layers of the polymer film (ts) by the thickness of the polymer film (tf) (ts/tf) satisfies a relationship of 0.33≦ts/tf≦1.50 and/or (2-2) a space inside a 50% cross-sectional circle of the roll-shaped polymer film so that the area of the space inside the 50% cross-sectional circle is 25% or more of the cross-sectional area of the 50% cross-sectional circle..
|Long length electrodes|
An embodiment disclosed herein includes a monolithic graphite electrode. The electrode has a main body having a length of more than 3050 mm.
|Rapid drying of ceramic greenwares|
Systems and methods for rapid drying of ceramic greenwares having a high graphite content are disclosed. The methods include employing microwave drying to bring the dryness of the ceramic greenware to a first select dryness and then employing close-coupled hot-air drying to bring the dryness to the final target dryness.
|Self-bonding of chemically vapor deposited sic articles|
Method and system for bonding two or more cvd sic articles together without the use of interface materials using applied forces from about 0.0035 mpa to about 0.035 mpa. The articles are pretreated for bonding.
|Non-fluorinated water-based superhydrophobic compositions|
A superhydrophobic non-fluorinated composition includes a hydrophobic component free of fluorine; a filler particle; and water, wherein the composition is at a ph greater than 7, and wherein the hydrophobic component is in an aqueous dispersion. The superhydrophobic non-fluorinated composition alternatively includes a hydrophobic polymer free of fluorine; an exfoliated graphite filler particle including acid functional groups; water; and a stabilizing compound, wherein the composition is at a ph greater than 7, and wherein the hydrophobic polymer is in an aqueous dispersion.
|Rubber-modified flame-retardant moulding compositions and production thereof|
The invention relates to thermoplastic moulding compositions comprising a) between 55 to 98% in weight of at least one vinyl aromatic copolymer modified with a particulate graft rubber, b) between 1 to 44% in weight of a flame retardant comprising b1) an expandable graphite, b2) a flame-retardant compound comprising phosphorus, and b3) a fluorine-containing polymer, c) between 1 to 20% in weight of a non-particulate-forming rubber comprising polar groups, and d) between 0 to 40% in weight of additional additives, where the weight percentages are respectively based on the total weight of components a) to d), and said percentages add up to a total of 100% in weight, and the polybutadiene content is between 0 to 11i % in weight.. .
|Graphene oxide reduced material dispersed at high concentration by cation-ii interaction and method for manufacturing same|
The present invention relates to a graphene oxide reduced material dispersed at a high concentration by a cation-π interaction and to a method for manufacturing same, and more particularly to a method for manufacturing a graphene oxide reduced material dispersed in a high concentration by a cation-π interaction comprising: a first step of synthesizing graphite oxide flakes in a powder state from graphite flakes in a powder state; a second step of forming a graphene oxide dispersion solution by dispersing the graphite oxide flakes of the first step into a solvent; a third step of preparing a cation reaction graphene oxide dispersion solution through the interaction of a cation and a π-structure in an sp2 region by positioning the cation at the center of an arrangement of carbon atoms connected by sp2 bonding in two dimensions in the dispersion solution formed in the second step; and a fourth step of preparing a cation reaction graphene oxide reduced material by reducing the cation reaction graphene oxide dispersion solution of the third step.. .
|Non-fluorinated water-based superhydrophobic surfaces|
A superhydrophobic surface includes a substrate treated with a non-fluorinated composition, the composition including a hydrophobic component free of fluorine; a filler particle; and water, wherein the composition is at a ph greater than 7, and wherein the hydrophobic component is in an aqueous dispersion. The superhydrophobic surface alternatively includes a substrate treated with a non-fluorinated composition, the composition including a hydrophobic polymer free of fluorine; an exfoliated graphite filler particle including acid functional groups; water; and a stabilizing compound, wherein the composition is at a ph greater than 7, and wherein the hydrophobic polymer is in an aqueous dispersion..
|Nitrate reduction method, nitrate reduction catalyst, nitrate reduction electrode, fuel cell, and water treatment apparatus|
A nitrate reduction method in accordance with the present invention reduces at least one type of nitrates and nitrites in a presence of a carbon-based material containing at least one selected from a group consisting of graphite, graphene, and amorphous carbon.. .
|Cylinder liner and cast iron alloy|
A cylinder liner for an internal combustion engine may include a cast iron alloy having a pearlitic structure with at least 70% of graphitization with spheroidal graphite morphology. The cast iron alloy may include at least 2.8% to 4.0% in weight of carbon; 1.8% to 3.5% in weight of silicon; 0.2% to 1.0% in weight of manganese; a maximum of 0.5% in weight of phosphorus; a maximum of 0.05% in weight of sulfur; a maximum of 0.5% in weight of vanadium; a maximum of 0.5% in weight of molybdenum; 0.2% to 1.5% in weight of nickel; a maximum of 0.3% in weight of tin; 0.005% to 0.06% in weight of magnesium..
|Laboratory heat press|
Laboratory heat press consists of furnace part equipped with dilatometer which is placed beneath removable double-acting pneumatic cylinder anchored on four shafts, of power supply and of computer which regulates process and collects data, while in the working space is situated graphite press die with sample, which is placed on sliding piston holder and the device is equipped with control electronics. Heating equipment is graphite element, and around the element are situated graphite shields made from solid graphite and graphite wool insulation.
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Graphite topics: Internal Combustion Engine, Optical Fiber, Fatty Acid, Combustion, Fatty Acid Amide, Circuit Board, Crystallin, Conductive Polymer, Polymer Binder, Carboxylic Acid, Contraction, Lithium Ion, Graphite Electrode, Homeopathic Medicine, Homeopathic
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