Matches 101 - 150 out of 496 < 1 2 3 4 5 6 7 8 9 10 >
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5981415 Ceramic composite material and porous ceramic material  
A ceramic composite material consisting of two or more crystal phases of different components, each crystal phase having a non-regular shape, said crystal phases having three dimensional continuous...
5977003 Particulate materials  
A ceramic particulate material which comprises particles having an irregular three dimensional surface profile having jagged projections and a median particle diameter of 200 micrometers or less,...
5977000 High purity opaque silica glass  
Opaque silica glass having a density of 2.0 to 2.18 g/cm 3 , sodium and potassium elements concentrations in the silica glass of each 0.5 ppm or less and an OH group concentration of 30 ppm or...
5962352 Method for fabricating porous composite oxide  
A method for fabricating a porous composite oxide is provided. The method includes the steps of: (a) slowly mixing a solution including a silicon oxide source and a solution including an aluminum...
5962348 Method of making thermal core material and material so made  
The present invention discloses a method a method of making a material for thermal cores and the material so made. In particular, the present invention disclose a method including the steps of...
5958831 SiC foam catalyst carrier with a reinforced skin and corresponding catalytic systems  
SiC foam-based catalyst carrier in the form of a moulded part having walls reinforced with a SiC skin having mechanical characteristics higher than those of the foam, this skin allowing the carrier...
5955387 Microform composite with intermediate reinforcing fiber cloth  
A ceramic composite is provided comprising ceramic fibers, glass microballoons and/or diatoms, bound together with a ceramic reinforcing cloth with a sol-gel ceramic binder. The composite is...
5935888 Porous silicon nitride with rodlike grains oriented  
An object of the present invention is to provide a high-porosity, high-strength porous silicon nitride having great tolerance with respect to strain and stress, and a method for producing the same,...
5935887 Ceramic filter and method for preparing same  
A ceramic filter for filtering molten metals includes aggregate particles consisting of fused alumina and/or sintered alumina, and a binder material, wherein the binder is present in an amount of...
5910462 Zirconia particles  
Porous zirconia or zirconium-containing particles, methods of making such particles and methods of using such particles including modifications to the surface of the particles are described. The...
5902759 Synthesis of microporous ceramics  
The present invention provides for microporous ceramic materials having a surface area in excess of 70 m 2 /gm and an open microporous cell structure wherein the micropores have a mean width of...
5897849 Unimodal, large-pore silicas by hydrothermal treatment of silicia powders  
The need for silicas with large pore sizes can be met by hydrothermal treatment of a silica powder with a mineralizing agent. Pore sizes in the range 300-25,000 angstroms, and more particularly in...
5885917 Porous lithium aluminate carrier of spinel structure for catalyst  
A porous lithium aluminate carrier for catalyst has a spinel structure which has a mean pore diameter in the range of 40 to 1,000 angstroms and a total pore volume in the range of 0.2 to 1.5 mL/g....
5881353 Method for producing porous bodies  
A method for producing a porous body with high porosity is provided. An adhesive is coated on a synthetic resin foam having three-dimensional network structure, such as urethane foam, serving as a...
5874374 Method for producing engineered materials from salt/polymer aqueous solutions  
A method for producing engineered materials from salt/polymer aqueous solutions in which an aqueous continuous phase having at least one metal cation salt is mixed with a hydrophilic organic...
5872070 Pyrolysis of ceramic precursors to nanoporous ceramics  
The present invention provides for amorphous, nanoporous, ceramic material having a surface area in excess of 70 m 2 /gm and characterized by a high content of open microporous cell structure...
5849650 Slurry for making ceramic insulation  
A fibrous ceramic mat is molded from a slurry of ceramic fibers and/or ceramic microparticles and/or a metal. The mat is impregnated with a sol prior to drying. A catalyst for the sol is introduced...
5843857 Inorganic porous body and method for producing the same  
This invention aims to provide an inorganic porous body which can be ensured with high strength and high porosity and which is applicable to soil conditioners. The inorganic porous body has a...
5840271 Synthetic material with high void volume associated with mesoporous tortuous channels having a narrow size distribution  
A process for preparing an inorganic porous material, includes the steps of forming a solution of a hydrolyzable inorganic compound with a non-ionic surfactant having organic molecules; inducing...
5837631 Molded silicon carbide bodies  
The invention relates to a microporous carbon-bound molded SiC body with granular SiC, secondarily formed SiC and a secondarily formed silicon compound, for use as inwall brick for lining a blast...
5837630 High surface area mesopourous desigel materials and methods for their fabrication  
Mesoporous desigels are fabricated as nitrides, carbides, borides, and silicides of metals, particularly transition metals, and most particularly early transition metals. The desigels are prepared...
5837047 Heat curable binder systems and their use  
This invention relates to heat cured binder systems comprising as separate Parts: Part I comprising (a) a soluble source of silica, (b) an alcohol, and preferably (c) a surfactant; and Part II...
5833728 Method for the preparation of vitreous hollow microspheres  
Provided is a method for the efficient preparation of fine hollow spherical glassy bodies having a high strength and excellent whiteness from a volcanic vitreous deposit as the starting material....
5780374 High-strength porous silicon nitride body and process for producing the same  
A high-porosity and high-strength porous silicon nitride body comprises columnar silicon nitride grains and an oxide bond phase containing 2 to 15 wt. %, in terms of oxide based on silicon nitride,...
5779789 Soil conditioner  
This invention aims to provide an inorganic porous body which can be ensured with high strength and high porosity and which is applicable to soil conditioners. The inorganic porous body has a...
5772735 Supported inorganic membranes  
Supported inorganic membranes capable of molecular sieving, and methods for their production, are provided. The subject membranes exhibit high flux and high selectivity. The subject membranes are...
5759932 Coating composition for metal-based substrates, and related processes  
An improved thermal barrier coating for metal substrates such as superalloys is provided. The coating is a slurry composition, comprising spheres of zirconia, at least some of which are hollow,...
5753573 Slurry for making felted ceramic insulation  
A slurry is molded from ceramic fibers and/or microparticles to form a soft felt mat which is impregnated with a sol prior to drying the mat. A catalyst for the sol is caused to diffuse into the...
5750449 Ceramic porous bodies and method of producing the same  
A ceramic porous body composed principally of silicon carbide or silicon nitride which has higher strength, higher heat resistance and higher thermal shock resistance and has a large number of fine...
5714000 Fine-celled foam composition and method  
Disclosed is a rigid fine-celled foam composition and a method of producing it. The foam composition is nontoxic, environmentally friendly, has improved absorption/adsorption and retention of...
5710203 Electronic coating compositions  
Disclosed are compositions which can be used to form tamper-proof coatings on electronic devices. These compositions contain a silica precursor resin and a filler which reacts in an oxidizing...
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:...
5705448 Production of porous articles  
A gas generating substance is added to an aqueous dispersion containing refractory particles and a polymerizable monomer and the pressure and/or temperature are adjusted so that the substance...
5696217 Synthesis of microporous ceramics by ammonia pyrolysis of ceramic precursors  
The present invention provides for microporous ceramic materials having a surface area in excess of 100 m 2 /gm and an open microporous cell structure wherein the micropores have a mean width of...
5696042 Ceramic porous body and method for preparing the same  
A ceramic porous body for a filter or a catalyst carrier, having a structure in which voids each having the same volume as that of a sphere of 10 μm to 500 μm in diameter are formed and the voids...
5688730 Optically transparent gamma-aluminum oxynitride powders and ceramic articles shaped therefrom  
Gamma-aluminum oxynitride ground powders, white in color and well suited for conversion into optically transparent ceramic shaped articles, 100% of the particles of which being less than 10 μm in...
5688728 Porous ceramic material  
A porous ceramic material for a slidable member on unit such as a valve unit of a combination faucet. The porous ceramic material comprises a ceramic sintered body which is formed with pores...
5676745 Pre-ceramic polymers in fabrication of ceramic composites  
Composites in the form of a three-dimensional framework or skeleton of ceic particles are formed by a low cost, low temperature sintering process which decomposes a pre-ceramic inorganic or organic...
5674792 Shaped body having a high silicon dioxide content and a process for producing such shaped bodies  
A shaped body of amorphous silicon dioxide, which has a chemical purity of at least 99.9% and a cristobalite content of at most 1% and which is impermeable to gas, is known. To provide shaped...
5656250 Three-dimensional network structure comprising spherical silica particles and method of producing same  
A three-dimensional network structure comprising three-dimensionally interconnected spherical silica particles, having specific physical characteristics including diameter, pores on the surfaces of...
5654246 Methods of making composite ceramic articles having embedded filler  
A method of making self-supporting ceramic composite structures having filler embedded therein includes infiltrating a permeable mass of filler with polycrystalline material comprising an oxidation...
5643987 Synthesis of microporous ceramics  
The present invention provides for microporous ceramic materials having a surface area in excess of 70 m 2 /gm and an open microporous cell structure wherein the micropores have a mean width of...
5643512 Methods for producing ceramic foams using pre-ceramic resins combined with liquid phenolic resin  
The present invention is embodied in a method of producing a ceramic foam. The steps for producing the ceramic foam include first mixing a liquid pre-ceramic resin with a liquid phenolic resin,...
5632326 Mould and a method for the casting of metals and refractory compositions for use therein  
A mold for metal casting contains a bonded refractory composition comprising hollow alumina-containing microspheres in which the alumina content is at least 40% by weight. The mold may be an ingot...
5618765 Ceramics porous body and method of preparing the same  
A ceramics porous body having a high porosity as well as high strength is especially suitable for use as a filter for removing foreign matter from a fluid or as a catalytic carrier. The porous body...
5618762 Light-weight antibacterial ceramic and antibacterial ceramic filter  
An antibacterial ceramic contains an antibacterial material produced by loading an antibacterial metal such as silver on a calcium ceramic carrier and an inorganic material such as cordierite, and...
5614255 Method for the preparation of vitreous hollow microspheres  
Proposed is an efficient method for the preparation of vitreous hollow microspheres from particles of a vitreous volcanic deposit by a heat treatment to effect expansion of the particles by...
5612266 Decorative, non-combustible synthetic fire-log  
Disclosed is a decorative, non-combustible, synthetic fire-log for use in a gas or oil burning fireplace or stove. This synthetic fire-log has a density ranging from 15 to 45 lb/pi 3 . It is made...
5610109 Porous ceramic material  
A method for producing high surface area, thermally stable, microporous porous ceramic materials involves replacing a portion of the silicon in a sol or gel comprising silica (silicon dioxide) with...
5601674 Fiber reinforced ceramic matrix composite member and method for making  
A method for making an environmentally stable, fiber reinforced ceramic matrix composite member includes use as a bonding agent of a ceramic precursor which transforms upon heating to a ceramic...
Matches 101 - 150 out of 496 < 1 2 3 4 5 6 7 8 9 10 >