Matches 51 - 100 out of 307 < 1 2 3 4 5 6 7 >
Match Document Document Title
6107223 Method for preparing high strength and high thermal shock-resistant china for ceramic whiteware  
A method for preparing high strength and high thermal shock-resistant china for ceramic whiteware which comprises the steps of molding a china-forming raw material which mainly comprises a natural...
6103651 High density ceramic metal composite exhibiting improved mechanical properties  
This invention is directed to ceramic metal composite useful as a refractory and having improved abrasion, corrosion, and oxidation resistance. The ceramic metal composite of the present invention...
6093461 Heat-and corrosion-resisting protection tube  
The present invention relates to a protection tube for protecting heaters and sensors used in melting furnace for reprocessing of incinerator ash, other melting furnace, and various other furnaces,...
6087281 Low CTE cordierite bodies with narrow pore size distribution and method of making same  
Cordierite body of CTE at 25-800° C. of ≤4×10 -7 C, at least 85% of porosity having pore diameter of 0.5-5.0μ; or >4-6×10 -7 C -1 , porosity at least 30 vol %, at least 85% of porosity...
6077796 Low CTE-low porosity cordierite bodies and method of making same  
Low expansion, low porosity cordierite bodies having a CTE at 25-800° C. of <4×10-7C-1 and total porosity of <20%, or CTE of >4×10-7C-1 but <9×10-7C-1 and total porosity of <12%,...
6069105 Alumina-based sintered materials and process for producing the same  
Disclosed is an alumina-based sintered material comprising a magnesium component, a calcium component, a silicon component, and a lithium component, wherein the content of the lithium component in...
6025290 Ceramics having a low heat conductivity  
In the ceramics having a low heat conductivity, silicon nitride is contained as a main component, a composite oxide or a separate phase thereof and transition metal elements having 66 to 75 of...
5994252 Process for producing spherical metal-oxide powder particles  
There is a process for producing spherical metal-oxide powder particles. They are used as finely ground raw and filler materials in mineral, ceramic and refractory construction, technical and...
5972102 Hydraulically-bonded monolithic refractories containing a calcium oxide-free binder comprised of a hydratable alumina source and magnesium oxide  
This invention relates to cement-free refractories exhibiting high green strength, improved corrosion resistance, and improved magnesium oxide hydration resistance useful as refractory castables...
5900382 Refactory binder  
The present invention relates to a refractory binder that comprises a mixture of aqueous phosphate and silica sol. The silica sol has been found to gel and set in a surprisingly effective and...
5880046 Moldable refractory composition and process for preparing the same  
This moldable refractory composition is intended to be used in the production of cast refractory pieces resistant to molten metals, especially molten aluminum. It comprises 8 to 25% by weight of an...
5880048 Granular ceramic for water deoxidization and method of producing the same  
A ceramic and method of producing the same are disclosed, the ceramic having as principal ingredients natural zeolite and shells, wherein silver nitrate, magnesium oxide, potassium oxide, sodium...
5856254 Spherical metal-oxide powder particles and process for their manufacture  
Spherical metal-oxide powder particles are used as finely ground raw and filler materials in mineral, ceramic and refractory construction, technical and auxiliary materials, as well as for...
5856251 Castable refractory for slide gate  
Castable refractory for a slide gate plate is mainly formed of alumina raw material and amorphous carbon raw material of 2 to 15 wt %, and contains silicon carbide and/or boron carbide, the total...
5854157 Ceramic composite  
An object of the present invention is to provide a novel ceramic composite that has not only excellent dynamic characteristics, but also good electromagnetic characteristics, typified by dielectric...
5846891 Thermal shock-resistant alumina-mullite composite material and preparation method thereof  
A thermal shock-resistant alumina-mullite composite material and a preparation method thereof which are capable of concurrently obtaining the compactness of the material and a mullite formation....
5783510 Monolithic refractory composition wall  
A monolithic refractory composition, which can be rapidly dried after being mixed with water and applied to a desired portion by casting or spraying to form a furnace wall, and which comprises...
5728638 Metal/ceramic composites containing inert metals  
The invention is directed to a non-vapor phase process for forming a metal/ceramic composite containing a relatively inert metal such as silver, copper, or nickel by the reaction of a reactive...
5726110 Zirconia-alumina ceramic article  
The present invention is a ceramic article of magnesium-X silicate, wherein X represents lithium, sodium, potassium or other monovalent ion from about 0.1 to 2 weight percent, and yttria stabilized...
5716894 Whiteware ceramic compositions  
A whiteware ceramic composition is provided comprising a filler, 4 to 10% by weight of a flux having a median particle size of below 6 microns, a prefired ceramic material milled separately from...
5707910 Alumina-magnesia oxide, method of making the same, and fine pulverulent body of the same  
An object of the present invention is to provide an alumina-magnesia oxide which can be fine pulverulent bodies by pulverizing. In the alumina-magnesia oxide of the present invention includes:...
5707911 Infrared radiation generating ceramic compositions  
The disclosed invention is directed to novel ceramic compositions, and to stabilizer compositions for use with those ceramic compositions. The ceramic materials are formed of rare earth chromium...
5681785 Castable refractory containing alumina coarse grains  
A castable refractory which comprises a matrix, making up 100 wt % in total, composed of 3-20 wt % of magnesia clinker having a particle diameter smaller than 0.21 mm and containing more than 95 wt...
5681786 Castable refractory rich with alumina coarse grains  
A castable refractory which comprises a matrix, making up 100 wt % in total, composed of 3-20 wt % of magnesia clinker having a particle diameter smaller than 0.21 mm and containing more than 95 wt...
5679292 Process for producing cordierite ceramic body  
An unfired recycled material recovered in the course of the production of a cordierite ceramic body is comminuted to prepare a comminuted material. The comminuted material is then subjected to size...
5656203 Electrically conductive ceramics with oxides of Al, Cr, and Mg  
A conductive ceramic composition is disclosed which consists essentially of alumina, chromia, and magnesia, and is suitable for use as target electrodes in electrostatic fiber charging...
5639704 Ceramic including alumina and a complex oxide  
The present invention relates to ceramics and a method for making ceramics having very little dimensional change after sintering and high dimensional accuracies, so that the characteristics of...
5633084 Coated fused alumina particles and production process thereof  
Fused alumina particles are covered with a coating of aluminum titanate which is formed by applying a Ti-containing compound to the surface of the fused alumina particles and firing the same to...
5627116 Method of making a translucent polycrystalline alumina  
A sintered, translucent ceramic article comprises alpha alumina and up to 0.050 wgt. percent magnesia and between 0.001 to 0.100 wgt. percent lutetium oxide. In a preferred embodiment, the lutetium...
5625256 High-pressure discharge lamp having a ceramic discharge vessel, sintered body suitable therefor, and method for producing the sintered body  
A ceramic discharge vessel (6) for a high-pressure discharge lamp (1) made from a sintered body of optically translucent polycrystalline alumina ceramic which is doped with only 100-800 ppm MgO,...
5607885 Low thermal expansion cordierite aggregate and its bonded body  
A low thermal expansion cordierite aggregate, which consists mainly of cordierite crystals having a mean crystal diameter of at least 50 μm and has little orientation in the crystal structure,...
5601853 Electrically conductive ceramics and their use in fiber charging apparatus  
A conductive ceramic composition is disclosed which consists essentially of alumina, chromia, and magnesia, and is suitable for use as target electrodes in electrostatic fiber charging...
5602063 Lightweight sprayable tundish lining composition  
The present invention discloses a low density basic refractory lining material with improved resistance to corrosion by molten slag and metal that is especially adapted for use as a disposable...
5587346 Translucent polycrystalline alumina  
A sintered, translucent ceramic article comprises alpha alumina and up to 0.050 wgt. percent magnesia and between 0.001 to 0.100 wgt. percent lutetium oxide. In a preferred embodiment, the lutetium...
5567663 Cordierite honeycomb ceramics and method producing the same  
Cordierite honeycomb ceramics comprises a cordierite phase as a main ingredient. A value of [Fe 2 O 3 wt %/(MgO wt %+Fe 2 O 3 wt %)]×100 is 2-10, where a ferric component is calculated as Fe 2...
5529732 Underlying boards for firing and a method for firing ceramic moldings by using such underlying boards  
A firing underlying board having a long use life free from thermal expansion and which does not cause twisting of ribs, deformation of an end face, color change or cracking in a honeycomb...
5510210 Solid electrolyte for sodium-sulfur secondary cell and process for preparing the same  
The present invention is directed to a solid electrolyte and a process for making the same for a sodium-sulfur secondary cell including a composition of 7.0 to 10.0 weight percent of Na 2 O, 0.5...
5506179 Ceramics binder mixture and binding method  
A ceramics binder mixture having from 4.3 to 7 parts by weight, as calculated as silica, of a silica-sol mixed to 100 parts by weight of a mixture comprising (1) from 25 to 60 parts by weight of...
5429779 Method of making cordierite bodies  
In a process of forming cordierite-containing bodies, the water absorption capability or shrinkage of the bodies is controlled using the alumina-yielding ingredients. The process of controlling the...
5411583 HF-resistant ceramics and use thereof  
Hydrogen fluoride-resistant articles are disclosed which have HF contact surfaces consisting essentially of sintered, single phase, polycrystalline, solid solution alumina and magnesia ceramic. The...
5409870 Modified cordierite precursors  
Cordierite-containing articles are produced by a method comprising the steps of providing raw materials including including alumina-yielding ingredients, magnesia-yielding ingredients, and...
5369067 Composite substrates and their production  
A composite substrate is provided, which comprises a cordierite-anorthite-boron base composite material and has a microstructure with anorthite included in the cordierite phase. This substrate can...
5366944 Vibratable refractory compositions  
A dry vibratable substantially alkali free refractory composition is disclosed for use as a disposable liner wherein the combination of a powdered metal utilized as a high temperature binder and an...
5344799 Formable ceramic compositions and method of use therefor  
A plastically deformable mixture and method for making a body from the mixture are disclosed. The mixture is composed of powder materials, which when fired form as predominant phases: ceramic,...
5332703 Batch compositions for cordierite ceramics  
Ceramic products consisting principally of cordierite and a method for making them are provided, the method employing batches comprising a mineral component and a chemical component, the mineral...
5302564 Sintered microcrystalline ceramic material  
Abrasive material with particularly high abrasive performance is obtained in that the ceramic material contains an additive of 0.01 to 15 percent by weight, preferably 0.1 to 3 percent by weight of...
5296423 Cordierite substrates  
Cordierite-forming green substrates having high wet strength are prepared from fine-particle size minerals, including about 5 to 30 weight percent of delaminated kaolin and, preferably, about 15 to...
5270270 Process for producing dense-sintered cordierite bodies  
A process for producing dense-sintered cordierite bodies and zirconium dioxide-reinforced cordierite bodies with a maximum of 50% by weight of ZrO 2 is described, wherein a powder of cordierite...
5266536 Ceramic green bodies  
Green bodies suitable for use in manufacturing ceramic articles are provided. The bodies comprise a coherent mass of particles of aluminium oxide free of organic binder and having a fracture stress...
5250479 Magnesia-carbon refractory compositions for slide gate plates and method of manufacture  
The invention concerns a fired magnesia-carbon shape having a combination of properties making it especially suitable for slide gate plates, inserts for such plates and for pouring nozzles useful...
Matches 51 - 100 out of 307 < 1 2 3 4 5 6 7 >