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8168555 |
Ceramic substrate, process for producing the same, and dielectric-porcelain composition
A ceramic substrate is provided as one having a large coefficient of thermal expansion α, having properties suitable for use as a high-frequency substrate, being capable of being fired at a low ...
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8163667 |
Transmitting optical element with low foreign-element contamination
A transmitting optical element of polycrystalline material that includes crystallites of magnesium spinel MgAl2O4 or lutetium-aluminum garnet Lu3Al5O12, wherein the polycrystalline material...
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8143180 |
Honeycomb cement with ceramic-forming crystallizable glass and method therefor
Disclosed are cements for ceramic honeycomb bodies. Such cements can be applied to a fired ceramic honeycomb body then fired, or can be applied to an unfired (green) honeycomb body and co-fired...
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8143182 |
Fused ceramic particle
The present invention provides a fused ceramic particle, having the following chemical composition, in percentages by weight based on the oxides and for a total of 100%:...
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8097549 |
Method for manufacturing cordierite ceramics
A method for manufacturing cordierite ceramics is provided, including forming and heating a cordierite-forming raw material containing α-alumina. The degree of orientation, expressed by ...
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7977265 |
Triboceramic compound
The present invention relates to the machine building industry and it is used for coating of friction surfaces by triboceramics to decrease wear and to reduce the friction coefficient. The...
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7833923 |
Monolithic refractory material having low expansibility, high strength, and crack extension resistance
A monolithic refractory material is provided by a method including the steps of kneading cordierite powder having a median diameter in a range of 10 to 50 μm, and having a sharp mountain-like ...
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7723250 |
Ceramic porous body and method for producing molded body
A ceramic porous body including at least Si as a chemical component, the ceramic porous body being obtained by adding a porous silica powder or a porous silica-containing compound powder to a...
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7708957 |
Thermally stable ceramic media for use in high temperature environments
A chemical processing apparatus that utilizes a ceramic media sintered at a lower temperature than the apparatus' maximum exposure temperature is described. The media's physical and chemical...
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7704442 |
Process for producing honeycomb structure
A process for producing a honeycomb structure by obtaining clay from a cordierite-forming raw material containing an alumina source, a silica source, and a magnesia source; and forming the clay...
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7632770 |
Industrial ceramic shaped body and process for producing same
The invention relates to a fired, basic, refractory, industrial ceramic shaped body comprising at least one basic resistor component and an elasticizer component, wherein the elasticizer component...
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7605110 |
Ceramic body, ceramic catalyst body and related manufacturing methods
A ceramic body, a ceramic catalyst body, a ceramic catalyst body and related manufacturing methods are disclosed wherein a cordierite porous base material has a surface, formed with acicular...
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7576022 |
Aluminum-and magnesium-based molten ceramic grains
Molten ceramic grains are intended, for example, for applications involving abrading tools, having the following average chemical weight composition, expressed in weight percent based on oxide...
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7541303 |
High porosity cordierite ceramic honeycomb article and method
The present invention provides materials and methods for the manufacture of high porosity ceramic exhaust filters employing relatively low amounts of pore formers, the filters combining efficient...
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7528086 |
Magnesium aluminate transparent ceramic having low scattering and absorption loss
A ceramic having at least about 90% by weight magnesium aluminate and having a bulk scattering and absorption loss of less than about 1/cm at any wavelength in a range of about 0.23 to about 5.3...
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7510755 |
Honeycomb structure and method for producing same
There is provided a honeycomb structured body having improved durability in a honeycomb structure body obtained by unitarily bonding a plurality of honeycomb segments. There is provided a honeycomb...
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7510991 |
Noise suppressor for electronic signals
The present invention is directed to a noise suppressor for electronic signals. The noise suppressor at least includes Aluminum Oxide (Al2O3) that is sintered under high temperature, resulting in...
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7473464 |
Porous material and method for production thereof
According to the present invention, a porous material is characterized by comprising: a connected structure formed by combining silicon carbide which is an aggregate with cordierite which is a...
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7442663 |
Ceramic clay, ceramic formed article, ceramic structure, and manufacturing methods thereof
There is disclosed a ceramic clay obtained by kneading a forming material containing a ceramic forming material, wherein the forming material contains layered double hydroxide, in addition to the...
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7335617 |
Refractory product for a checker work element of a glass furnace regenerator
The invention relates to a melted and cast refractory product which is intended, for example, for a checker work element of a glass furnace regenerator, having the following average chemical weight...
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7300898 |
Low CTE cordierite body
Disclosed is a sintered ceramic article that exhibits a primary crystalline phase of cordierite having an analytical oxide composition, expressed in weight percent on an oxide basis, of 49-53%...
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7250384 |
Method for producing cordierite-based porous material
A method of manufacturing a cordierite porous body of the present invention is a method of manufacturing the cordierite porous body using a cordierite forming material including an Al source, an Si...
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7229940 |
Dense cordierite based sintered body and method of manufacturing the same
A dense cordierite based sintered body is provided, containing at least 93% by mass of cordierite among crystal components present in the sintered body. The average particle diameter of the...
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RE39120 |
Ceramic sintered product and process for producing the same
Low thermal expansion ceramics contains a cordierite crystal phase, wherein a phase of a crystalline compound containing at least one element selected from the group consisting of an alkaline earth...
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RE38888 |
Cordierite body
A ceramic comprising predominately a cordierite-type phase approximating the stoichiometry Mg2Al4Si5O18 and having a coefficient of thermal expansion (25-800° C.) of greater than 4×10−7/° C. and ...
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6864198 |
Cordierite ceramic body and method
A cordierite ceramic body having (i) a pore size distribution and a porosity which satisfy the relationship 10.2474/[(d50)2(pore fraction)]+0.0366183(d90)−0.00040119(d90)2+0.468815(1/pore
f...
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6818580 |
Honeycomb ceramics structure body and method for producing the same
A ceramics structure body having chemical composition of 42 to 56 wt % of SiO2, 30 to 45 wt % of Al2O3 and 12 to 16 wt % of MgO, crystalline phase mainly composed of cordierite, a porosity of 55 to...
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6815389 |
Process for producing anionic clay using two types of alumina compounds
An economical and environment-friendly process for the synthesis of anionic clays with carbonate and/or hydroxide anions as the charge-balancing interlayer species is disclosed. The process...
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6809139 |
Particulate sealant for filter plug forming
A particulate sealant for forming plugs in selected cells of honeycomb structures and consisting essentially, by weight, of about 70 to 90% ceramic blend, the ceramic blend being raw ceramic...
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6774075 |
Halogen-resistant media
Ceramic mass and thermal transfer media suitable for use in thermal regenerative oxidizers made using a mixture of a ball clay, talc and optionally a dolomitic limestone have enhanced resistance to...
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6723442 |
Ceramic material, method for the production thereof, use of the ceramic material, and layer of the ceramic material on a metallic or ceramic body
Disclosed is a ceramic material which is suitable for coating a body by way of a thermal spraying method and which has a coefficient of longitudinal thermal expansion that may be matched to that of...
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6677261 |
Alumina-bound high strength ceramic honeycombs
Strong, high-surface-area honeycombs of alumina or other ceramic composition are provided by compounding and shaping a moldable ceramic powder extrusion batches including a cellulosic temporary...
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6596041 |
Fused AL2O3-MgO-rare earth oxide eutectic abrasive particles, abrasive articles, and methods of making and using the same
Fused abrasive particles comprising eutectic material comprising Al2O3—MgO-REO eutectic. The fused abrasive particles can be incorporated into abrasive products such as coated abrasives, bonded a...
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6579817 |
Dielectric ceramic composition and method for producing the same, and device for communication apparatus using the same
A dielectric ceramic composition including at least a first component containing Al2O3, MgO and ROa (R is at least one element selected from the group consisting of La, Ce, Pr, Nd, Sm, Eu, Tb and...
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6558806 |
Heat-resistant structural body, halogen-based corrosive gas-resistant material and halogen-based corrosive gas-resistant structural body
In order to improve a heat-cycling-durability of a structural body in which a nitrided material is provided on a substrate containing at least metallic aluminum, a heat-resistant structural body...
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6548435 |
Basic free-flowing casting material and preforms produced thereform
The invention relates to free-flowing refractory castable material and castings produced therefrom. Refractory nonbasic and basic refractory castable materials have been known for a long time. The...
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6537940 |
Alkali-metal-β- and β″-alumina and gallate polycrystalline ceramics and fabrication by a vapor phase method
A ceramic composite containing alkali-metal-β- or β″-alumina and an oxygen-ion conductor is fabricated by converting α-alumina to alkali-metal-β- or β″-alumina. A ceramic composite with continuo...
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6514892 |
Transparent beads and their production method
Transparent solid, fused microspheres are provided. In one embodiment, the microspheres contain alumina, zirconia, and silica in a total content of at least about 70% by weight, based on the total...
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6461991 |
Alumina-magnesia-graphite refractory
A re-usable alumina-magnesia graphite refractory suitably used for a refractory for continuous casting, such as a long nozzle used for pouring a molten metal from a ladle capable of re-use or...
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6458732 |
Lightweight dry refractory
A dry refractory composition having superior insulating value. The dry refractory composition also may have excellent resistance to molten metals and slags. The composition includes filler...
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6440887 |
Continuous process for producing anionic clay
A continuous process for the synthesis of anionic clays with carbonate and/or hydroxide anions as the charge-balancing interlayer species is disclosed. The process involves reacting a slurry...
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6432856 |
Low expansion, high porosity, high strength cordierite body and method
A sintered ceramic honeycomb article that exhibits an average linear coefficient of thermal expansion (25-800° C.) below about 5.0×10−7° C.−1, a total porosity between the range of 20% to about ...
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6419875 |
Method for producing beta-alumina solid electrolyte
There is provided a method for producing a beta-alumina solid electrolyte without calcination of starting materials, according to which the step of synthesizing a magnesium-aluminum spinel starting...
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6391813 |
Low sintering temperature cordierite batch and cordierite ceramic produced therefrom
The invention is directed at sintered ceramic articles exhibiting a primary crystalline phase of cordierite and an analytical oxide composition, in weight percent, of 44-53% SiO2, 30-38 Al2O3,...
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6372677 |
Low thermal expansion and high rigidity ceramic sintered body
The low thermal expansion and high rigidity ceramic sintered body of this invention is characterized by assuming as a crystal structure a hexagonal close-packed structure and substantially...
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6368992 |
Binder system for honeycomb ceramic bodies and a method for producing honeycomb bodies
A binder system for use in the formation of ceramic or other powder-formed greenware comprising a binder, a solvent for the binder, a surfactant, and a component that is non-solvent with respect to...
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6319870 |
Fabrication of low thermal expansion, high strength cordierite structures
The present invention is directed at sintered ceramic articles exhibiting a crystalline phase assemblage comprising, by weight, of 65-95% cordierite and 5-35% of a secondary phase selected from the...
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6300266 |
Cordierite structures
A plasticizable raw material mixture for use in preparing a substrate having cordierite as its primary phase with the mixture comprised of a chemical composition, percent by weight, of 11 to 17%...
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6291379 |
Process for production of cordierite-based ceramic honeycomb structure
A process for producing a cordierite-based ceramic honeycomb structure, includes kneading raw materials for cordierite with a forming aid to obtain a raw material batch, subjecting the raw material...
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6288001 |
Graphite-containing monolithic refractory material
A graphite-containing monolithic refractory material comprises at least one component selected from alumina and alumina-magnesia spinel, which are divided into selected particle size regions,...
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