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7595274 |
Sintered body, magnetic head slider, and method of manufacturing sintered body
A sintered body for a magnetic head slider, which can reduce differences in level of an air bearing surface while yielding a high strength, a magnetic head slider using the same, and a method of...
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7592279 |
Boron carbide and boron carbide components
High-density components and products as well as processes for making high-density components and products are disclosed. One exemplary component, among others, includes a boron carbide component...
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7557054 |
Boron carbide sintered body and protective member
The compressive strength of a boron carbide sintered compact is improved by controlling crystals of the boron carbide to a polycrystalline structure having a grain size distribution in which coarse...
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7550401 |
Method of making lightweight high performance ceramic material
A method of making a sintered ceramic composition includes the steps of: providing a powder that includes at least 50 wt. % boron carbide and 0.05 wt. % to 30 wt. % of at least one oxide selected...
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7446978 |
Magnetic slider and method of manufacturing magnetic head slider
The magnetic head slider material of the present invention is constituted by a sintered body containing 100 parts by weight of alumina, 20 to 120 parts by weight of titanium carbide, and 0.2 to 9...
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7442661 |
Boron carbide based sintered compact and method for preparation thereof
A boron carbide based sintered body having a four-point flexural strength of at least 400 MPa and a fracture toughness of at least 2.8 MPa·m 1/2 , which has the following two preferred...
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7419925 |
Lightweight high performance ceramic material
A sintered ceramic composition includes at least 50 wt. % boron carbide and at least 0.01 wt. % of at least one element selected from the group consisting of Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy...
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7410923 |
SiC material, semiconductor device fabricating system and SiC material forming method
A highly corrosion-resistant SiC material is formed on a base body by a CVD process. The SiC material contains β-SiC crystals so oriented that the ratio of the sum of peak intensities of x-ray...
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7407903 |
Material for high temperatures
The present invention relates to a material for use at temperatures exceeding 1200° C. and in oxidizing atmospheres consisting generally of an alloy between a metal, aluminium (Al) and carbon (C)...
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7402540 |
Ceramic body containing alumina and boron carbide
A ceramic body that includes between about 15 volume percent and about 35 volume percent of a boron carbide irregular-shaped phase, and at least about 50 volume percent alumina, and the ceramic...
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7381670 |
Material for magnetic head slider, magnetic head slider, and method of producing material for magnetic head slider
A material for a magnetic head slider according to the present invention is a magnetic head slider material comprised of a sintered body containing alumina and titanium carbide, in which an area...
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7375044 |
Process for making a ceramic body containing alumina and boron carbide
A process for making a ceramic body that includes the following steps: providing a starting powder mixture, the starting powder mixture comprises between about 15 volume percent and about 35 volume...
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7345849 |
Magnetic head slider material, magnetic head slider, and method of manufacturing magnetic head slider material
The magnetic head slider material of the present invention is constituted by a sintered body containing 100 parts by weight of alumina, 20 to 150 parts by weight of titanium carbide and silicon...
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7335615 |
Method of machining a workpiece using a ceramic cutting insert including alumina and boron carbide
A method of machining a workpiece including the steps of providing a workpiece; providing a ceramic cutting insert having a rake surface and a flank surface wherein the rake surface and the flank...
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7309672 |
Lightweight boron carbide materials with improved mechanical properties and process for their manufacture
This disclosure describes sintered bodies comprising about 90 wt % to about 99 wt % of boron carbide, having a B:C atomic ratio ranging from 3.8 to 4.5:1; 0 to 1 wt % free carbon; 0 to 1 wt % BN or...
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7294596 |
Sintered ceramic material with improved properties and method for its manufacturing
A sintered ceramic material comprises a crystalline phase and an intergranular phase comprising a glass phase. The material is manufactured from a starting powder being mixed with an additive...
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7217674 |
Alumina-boron carbide ceramics and methods of making and using the same
A ceramic body, as well as a method of making the ceramic body, wherein in one aspect a hot-pressing method is used to produce the ceramic body. In another aspect, a sintering to full density...
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7196028 |
Sliding device, fluid dynamic pressure bearing, and motor using the same
The present invention provides sliding members respectively having sliding surfaces opposed to each other for creating dynamic pressure in a fluid, in which the sliding surfaces are formed of...
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7157393 |
Carbide and nitride ternary ceramic glove and condom formers
A slip-casted article former containing ternary ceramics, particularly of carbide and nitride materials, having the formula M n +1AX n (MAX), where M is a transition metal, A is an element from...
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7128850 |
Electrically conductive Si-Ti-C-N ceramics
Composite materials containing silicon, titanium, carbon, and nitrogen, formed by spark plasma sintering of ceramic starting materials to a high relative density, demonstrate unusually high...
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7112549 |
Low thermal expansion ceramic and member for exposure system
A low-thermal-expansion, rigid and wear-resistant ceramic is provided. The low-thermal-expansion ceramic of the invention includes 60 vol % to 99.9 vol % of at least one selected from the group...
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7112547 |
Highly heat-resistant inorganic fiber-bonded ceramic component and process for the production thereof
Production processes of an inorganic fiber-bonded ceramic component comprising inorganic fibers mainly comprising Si, M, C and O, an inorganic substance mainly comprising Si and O and boundary...
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7094821 |
Method of making tungsten carbide based hard metal tools or components
Preparation, handling, and spray drying, in an economic and environmentally-friendly way, of slurries for the production of tungsten carbide based hard metal tools or components by the powder...
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7087544 |
Nano-ceramics and method thereof
Disclosed herein is a method to produce ceramic materials utilizing the sol-gel process. The methods enable the preparation of intimate homogeneous dispersions of materials while offering the...
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7081424 |
High-strength, highly thermally conductive sintered compact of cubic boron nitride
The present high-strength, highly thermally conductive sintered compact of cubic boron nitride contains cubic boron nitride (cBN) grains and a binder binding the grains. More specifically, it is...
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7056849 |
Nanoscale ordered composites of covalent ceramics for high-temperature structural applications via block-copolymer-assisted assembly and method of making
A method of making nanoscale ordered composites of covalent ceramics through block copolymer-assisted assembly. At least one polymeric precursor is mixed with a block copolymer, and self-assembly...
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7022175 |
Initial solids mixture for a later organic coating application
An initial solids mixture for a later organic coating, such as pigmented coatings, films, priming coats, etc., e.g., for a coil coating method in which an initial solids mixture is applied to a...
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6984454 |
Wear-resistant member having a hard composite comprising hard constituents held in an infiltrant matrix
A tough wear-resistant hard member that includes a hard composite member and a support that has a surface area adjacent to the hard composite member wherein the hard composite member is affixed to...
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6964932 |
Silicon carbonitride with spinel structure
A compound having a space spinel structure and the formula Si3-x Cx N4 wherein 0<x≦1. An example of the compound is spinel silicon carbonitride. The compound of the invention may be made by...
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6953538 |
Electroconductive low thermal expansion ceramic sintered body
An electroconductive low thermal expansion ceramic sintered body is disclosed which containing a β-eucryptite phase in a quantity of not less than 75 vol. % and not more than 99 vol. % and having...
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6936102 |
SiC material, semiconductor processing equipment and method of preparing SiC material therefor
A highly corrosion-resistant SiC material is formed on a base body by a CVD process. The SiC material contains β-SiC crystals so oriented that the ratio of the sum of peak intensities of x-ray...
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6905992 |
Ceramic body reinforced with coarse silicon carbide whiskers and method for making the same
A ceramic composite made by compacting a starting powder blend. The composite includes between about 50 volume percent and about 99 volume percent of a ceramic matrix; and between about 1 volume...
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6903313 |
Resistance heating element for extreme temperatures
An electrical resistance heating element operable at extremely high temperature, up 2300° C. when used in a vacuum or in a reducing atmosphere, and up to bout 1200° C. when used in an oxidizing...
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6896968 |
Coatings and method for protecting carbon-containing components from oxidation
A protective coating for a carbon-containing component comprises a material selected from the group consisting of non-stoichiometric silicon and carbon; non-stoichiometric silicon and oxygen;...
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6841508 |
Carbide and oxycarbide based compositions, rigid porous structures including the same, methods of making and using the same
Compositions including oxycarbide-based nanorods and/or carbide-based nanorods and/or carbon nanotubes bearing carbides and oxycarbides and methods of making the same are provided. Rigid porous...
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6814775 |
Sintered compact for use in machining chemically reactive materials
A sintered cubic boron nitride (cBN) compact for use in a tool is composed of between about 60 and 80 vol-% cBN having a volumetric mean particle size of between about 3 to 6 μm and between about...
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6777360 |
Ceramic material, method of producing same, and formed product thereof
A ceramic material suitable for use in production of paving tiles, construction tiles, flooring in offices, flooring in machinery plants and so forth is obtained by a method comprising steps of...
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6770584 |
Hybrid aerogel rigid ceramic fiber insulation and method of producing same
A hybrid insulation material comprises of porous ceramic substrate material impregnated with nanoporous material and method of making the same is the topic of this invention. The porous substrate...
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6770583 |
Transistion metal containing ceramic with metal nanoparticles
A transition metal-containing ceramic made by the process comprising the step of pyrolyzing an organometallic linear polymer containing at least one metallocenylene unit, at least one silyl or...
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6746748 |
Honeycomb structure and process for production thereof
A honeycomb structure made of a silicon carbide-based porous body and having a number of through-holes extending in the axial direction, separated by partition walls. The strength and Young's...
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6740611 |
Alumina-based composite sintered material, wear resistant member and a method of manufacturing alumina based composite sintered material
An alumina-based composite sintered material comprising alumina as a main ingredient and containing one or more carbonitridation products of groups IVa, Va and VIa of the periodic table and/or two...
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6736875 |
Composite cordierite filters
Composite cordierite honeycomb structures especially suitable for diesel exhaust filtration applications comprise a non-oxide polycrystalline phase constituting 10-70% by weight, with the remainder...
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6716782 |
Rigid insulation and method of producing same
A porous ceramic fiber insulating material and method of making a material having a combination of silica (SiO 2 ) and alumina (Al 2 O 3 ) fibers, and boron-containing powders is the topic of the...
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6660673 |
Use of particulate materials containing TiO2 in refractory products
In order to reduce wear on refractory linings due to corrosion and the infiltration of slags and molten metals, particulate materials containing TiO 2 are added to the refractory products...
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6642165 |
Wear resistant member for electronic equipment, and bearing and spindle motor therewith
Wear resistant member for electronic equipment comprises a silicon nitride sintered body that contains conductivity enhancing particles, and has electrical resistivity in the range from 1 to 10 5 ...
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6635593 |
High strength sintered impact having excellent resistance to cratering
A sintered material containing high-pressure phase-type boron nitride and a binder is provided. The high-pressure phase-type boron nitride is contained in an amount of from 50% to 78% by volume,...
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6620756 |
Ceramic matrix composite cutting tool material
A reinforcing material is uniformly dispersed in a yttrium aluminum garnet matrix material for use as a machine tool material specially suited for machining Ti or a Ti alloy. The matrix material...
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6617271 |
Tungsten carbide cutting tool materials
The disclosed invention describes a new high-performance binderless high purity tungsten carbide material, its manufacturing and applications as a cutting tool material.
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6589305 |
Fused aluminum oxycarbide/nitride-Al2O3 • rare earth oxide eutectic abrasive particles, abrasive articles, and methods of making and using the same
Fused abrasive particles comprising eutectic material. The fused abrasive particles can be incorporated into abrasive products such as coated abrasives, bonded abrasives, non-woven abrasives, and...
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6551954 |
WC-base composite ceramic sintered compact
A WC-based composite ceramics sintered body consisting of 40 volume % to 90 volume % of WC including solid-solved oxygen represented by a chemical formula of WC x O y (where...
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