Abstract: Methods of making and compositions of dense sintered ceramic nano- and micro-composite materials that are highly stable in a variety of conditions and exhibit superior toughness and strength. Liquid feed flame spray pyrolysis techniques form a plurality of nanoparticles (e.g., powder), each having a core region including a first metal oxide composition comprising Ce and/or Zr or other metals and a shell region including a second metal oxide composition comprising Al or other metals. In certain aspects, the core region comprises a partially stabilized tetragonal ZrO2 and the shell region comprises an ?-Al2O3 phase. The average actual density of the ceramic after sintering is greater than 50% and up to or exceeding 90% of a theoretical density of the ceramic.

Abstract: 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 properties may contribute to its thermal stability when exposed to temperatures that exceed the media's sintering temperature by at least 50° C.

Abstract: A pyrochlore ceramic material and a thermal barrier coating containing pyrochlore ceramic materials are provided. Using the thermal barrier coating in a single or double layer which includes magnesium and/or titanium can improve the spallation behaviour and the thermal expansion coefficient of the component onto which the thermal barrier coating is applied.

Abstract: Provided is a MgO single crystal for obtaining a magnesium oxide (MgO) single crystal deposition material which is prevented from splashing during the vapor deposition in, e.g., an electron beam deposition method without reducing the deposition rate, and for obtaining a MgO single crystal substrate which can form thereon, e.g., a superconductor thin film having excellent superconducting properties. A MgO single crystal having a calcium content of 150×10?6 to 1,000×10?6 kg/kg and a silicon content of 10×10?6 kg/kg or less, wherein the MgO single crystal has a variation of 30% or less in terms of a CV value in detected amounts of calcium fragment ions, as analyzed by TOF-SIMS with respect to the polished surface of the MgO single crystal. A MgO single crystal deposition material and a MgO single crystal substrate for forming a thin film obtained from the MgO single crystal.

Abstract: The present invention relates to a basic-refractory composition containing magnesium orthotitanate (Mg2TiO4) and calcium titanate (CaTiO3) suitable for use in rotating kilns for the production of Portland cement or lime.

Abstract: Process for preparing granules of oxidic or nonoxidic metal compounds, characterized in that a dispersion which comprises water, oxidic or nonoxidic metal compounds and at least one dispersant is spray-dried,—where the proportion of oxidic or nonoxidic metal compounds is 40 to 70% by weight and the sum of the proportions of water and the particles is at least 70% by weight and—the particles have a BET surface area of 20 to 150 m2/g and a median of the particle size of less than 100 nm,—where the dispersant is present in the dispersion with a proportion of 0.25 to 10% by weight based on the oxidic or nonoxidic metal compounds and—where the spray-drying is performed by atomization with air in the cocurrent principle or fountain principle, and an air inlet temperature of 170 to 300° C. and an air outlet temperature of 90 to 130° C. are selected.

Abstract: A solid structure includes a substrate and a layer located on a surface of the substrate. The layer includes crystalline or polycrystalline MgB2.

Abstract: A treated refractory material includes a porous refractory material having one or more protective materials disposed within pores of the refractory material. Methods of preparing the treated refractory material are also provided. The treated refractory material provides protection from the penetration of slag and extends the service life of the refractory material.

Abstract: Preparation for producing refractory materials, characterized in that it comprises one or more particulate, refractory components and one or more binders, where—the particulate, refractory component has a mean particle diameter of >0.3 m and—the binder is selected from among—from 0.05 to 50% by weight of a very finely particulate binder having a mean particle diameter of from 10 nm to 0.3 m selected from the group consisting of aluminium oxide, titanium dioxide, zirconium dioxide and/or mixed oxides of the abovementioned oxides, —from 0 to 20% by weight of an inorganic binder, from 0 to 20% by weight of a hydraulically setting binder, —from 0 to 15% by weight of an organic, silicon-free binder—and the preparation additionally contains from 0 to 35% by weight of water, where—the proportion of the particulate, refractory component is equal to 100 and the percentages of the further materials in the preparation are based on the particulate component.

Abstract: The invention relates to a baked refractory ceramic product. According to the invention, both shaped and unshaped products come within this generic term. Shaped products are those which have a defined shape, so that they can be ready-made at the manufacturer's premises. The shaped products include: bricks, nozzles, tubes, stoppers, plates, etc. The products categorized as unshaped products include those which are usually produced at the user's premises from a suitable material. These include bottoms of furnace assemblies which are cast from a material, but also repair materials, etc.

Abstract: The invention relates to a fired refractory ceramic product. According to the invention, this generic term encompasses both shaped and unshaped products. Shaped products are ones which have a defined shape so that they can be manufactured in finished form on the premises of the manufacturer. Shaped products include: bricks, nozzles, tubes, stoppers, plates, etc. The term unshaped products includes ones which are usually produced by the user from a corresponding composition. They include bases for furnaces which are cast from a composition but also repair compositions, etc.

Abstract: Periclase MgO having a nanosheet structure. The distance of the lattice planes in HRTEM is ?0.24 nm-0.25 nm. Method of preparing periclase MgO having a nanosheet structure including preparation of Mg(OCH3)2 in methanol solution. 4-methoxy benzy alcohol (MBZ) or 4-nitro benzyl alcohol (NBZ) or a mixture thereof is added in a ration of Mg to MBZ and/or NBZ of at least 1. Water/methanol mixture is added to the system. Solvent removal and calcinations in air is performed of the mixture.

Abstract: 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 particles made of a component different from that of cordierite porous base material, which has an increased specific surface area with high resistance to a sintering effect. The ceramic body is manufactured by preparing a slurry containing an acicular particle source material, preparing a porous base material, applying the slurry onto a surface of the porous base material and firing the porous base material, whose surface is coated with the slurry, to cause acicular particles to develop on the surface of the porous base material. A part of or a whole of surfaces of the acicular particles is coated with a constituent element different from that of the acicular particles.

Abstract: 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 content: Al2O3: 93% to 97.5%; MgO: 2.2 to 6.5%; SiO2: <0.1%; other impurities: <0.4%.

Abstract: A honeycomb filter, for removing from exhaust gas fine solid particles containing carbon, is an aluminum magnesium titanate sintered product obtained by firing at from 1000 to 1700° C. a product formed from a mixture comprising a Mg-containing compound, an Al-containing compound and a Ti-containing compound in the same metal component ratio as the metal component ratio of Mg, Al and Ti in aluminum magnesium titanate represented by the empirical formula MgxAl2(1?x)Ti(1+x)O5 (wherein 0<x<1), or a mixture comprising 100 parts by mass, as calculated as oxides, of the above-mentioned mixture and from 1 to 10 parts by mass of an alkali feldspar represented by the empirical formula (NayK1?y)AlSi3O8 (wherein 0?y?1).

Abstract: A coated plastic substrate module (100) includes a plastic substrate (110), an organic coating (130), and a modulating film (120) sandwiched therebetween. The modulating film is made from partially stabilized zirconia. A method for manufacturing a coated plastic substrate module includes the following steps: providing a plastic substrate; forming a modulating film on the plastic substrate, the modulating film being made from partially stabilized zirconia; forming an organic coating on the modulating film; and annealing the treated plastic substrate having the modulating film and organic coating.

Abstract: A precursor composition for the production of granulated ceramic material, particularly for ceramic proppants, comprises 20 to 55% by weight of magnesium orthosilicate, 20 to 35% by weight of MgO, and 2.5 to 11% by weight of Fe2O3. The resulting lightweight proppant material shows high mechanical strength. To further decrease the specific density of the proppant, the formation of small pores can be increased by adding 0.3 to 2.4% carbon as a gas-forming agent.

Abstract: 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 ceramic Aluminum Oxide (Al2O3) for effectively absorbing or suppressing noise, and reshaping the waveform or filtering waveform glitch of the electronic signals.

Abstract: A hydrogen storage material is expressed by a composition formula, (Ca1-xAx)1-z(Si1-yBy)z, wherein “A” is at least one member selected from the group consisting of alkali metal elements, alkaline-earth metal elements, rare-earth elements, the elements of groups 3 through 6, Ni, Au, In, Tl, Sn, Fe, Co, Cu and Ag; “B” is at least one member selected from the group consisting of the elements of groups 7 through 17, rare-earth elements, Hf and Be; 0?x<1 by atomic ratio; 0?y<1 by atomic ratio; and 0.38?z?0.58 by atomic ratio. It is lightweight as well as less expensive. In principle, neither high-temperature nor high-pressure activation is required, because it exhibits a high initial activity. The operation temperature can be lowered and the hydrogen absorption content can be enlarged by controlling the kind and substitution proportion of the substituent elements appropriately.

Abstract: The present invention is directed to a salt optic provided with a multilayer coating in order to improve upon the moisture resistance of a salt optic, when compared to the moisture resistance of an uncoated salt optic. In one aspect, the present invention is comprised of a coated salt optic having at least a first coating layer and a second coating layer, the first coating layer being surface-smoothing layer and adhesion layer, and the second coating layer being a moisture barrier layer.

Abstract: The composition applied to the refractory structure has a magnesia-based refractory material, calcium carbonate and a binder. After application of the refractory material to a refractory structure and upon application of heat to the applied refractory material a matrix is formed which protects against penetration of the slag into the refractory material. The resulting refractory material has improved hot strength, slag resistance and durability.

Abstract: The composition of compounds containing a multiplicity of different elements are optimized in general by full or partial substitutions of one or more of the atoms in such compounds so as to effect an Ne/? value which represents a peak or near peak value in ? (the electron-phonon coupling constant) so as to maximize Tc for such compositions of matter.

Abstract: Superfine ceramic thermal spray feedstock compositions and methods of making and using such compositions are provided. In an embodiment, a thermal spray feedstock composition comprises: a superfine ceramic material comprising grains having an average longest dimension of about 100 nanometers to about 500 nanometers; and a grain growth inhibitor comprising a ceramic oxide different from the superfine ceramic material.

Abstract: The invention relates to a refractory ceramic product which comprises: a) ?93% by weight of at least one refractory basic component and b) ?7% by weight of at least one anticorrosive component from the group including: b1) transition metals, b2) compounds of transition metals with each other, b3) non-oxidic compounds of transition metals, b4) oxidic compounds of transition metals, b5) compounds of the transition metals with Ca, Ba, Sr.

Abstract: 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 ceramic forming material, at a ratio of 0.5 to 50% by mass with respect to a total with the ceramic forming material, and hardness measured by an NGK clay hardness meter is set to 4 to 18 mm. A high-strength honeycomb structure can be obtained capable of preventing or inhibiting pollution and global warming when used in manufacturing a ceramic structure, and having few defects such as cracks.

Abstract: An improvement in a process of forming ceramic articles comprising oil-based components or extrusion aids, the improvement including removing the oil-based components after drying and prior to firing by flowing a heated gas through the green ceramic honeycomb articles to evaporate and condense the oil-based components, with or without microwave radiation.

Abstract: Disclosed are sintered bodies that include: (a) 30 to 100 mol % of NbOx, wherein 0.5<x<1.5; and (b) 0 to 70 mol % of MgO. The sintered bodies may be used as inert apparatuses in the production of niobium suboxide powder or niobium suboxide anodes, or as chemically resistant components in chemical apparatuses.

Abstract: A low temperature sintering ceramic composition can be sintered at 850 to 1,000° C., and the sintered ceramic has a low dielectric constant (9 or less at 16 Ghz or more) and a high Qf (10,000 or more). The composition can be co-sintered with wiring material containing Ag, Au, or Cu. The ceramic composition includes (by mass) CaO, MgO, and SiO2 in total: over 60% to 98.6%; Bi2O3: from 1% to under 35%; and Li2O: from 0.4% to under 6%; wherein (CaO+MgO) and SiO2 are contained in the molar ratio of from 1:1 to under 1:2.5.

Abstract: A low temperature sintering ceramic composition that can be sintered at a temperature equal to or less than 1000° C. and has low dielectric constant and dielectric loss in a high frequency region of 17 Ghz or more, an electronic component using the same and a method of fabricating the low temperature sintering ceramic are provided. The composition comprises MgO and SiO2 in sum total in the range of from 64.0 to 99.2% by mass; Bi2O3 in the range of from 0.4 to 33.0% by mass; Li2O in the range of from 0.4 to 3.0% by mass; and MgO and SiO2 are contained in the molar ratio of from 2:1 to 2:3.5, at least part thereof being contained as a complex oxide of Mg and Si.

Abstract: A refractory brick, comprised of a refractory material having about 55% to about 96% by weight magnesia particles or magnesia particles containing spinel precipitates, about 3% to about 20% by weight fine zirconia particles having a particle size less than 35 Tyler mesh (less than 425 ?m), and about 1% to about 25% of a material selected from the group consisting of coarse zirconia, coarse spinel, coarse alumina-zirconia, and combinations thereof.

Abstract: To provide a ceramic composition and a ceramic wiring board that can be formed by the firing at a low temperature of 1,000° C. or less, has high strength and is advantageous when electronic component regions utilizing a ceramic layer are formed thereon. A raw ceramic material or calcined powder thereof having a composition consisting of 100 parts by mass of a main component that consists of 52 to 62% by mass of SiO2, 12 to 22% by mass of MgO, and 21 to 32% by mass of CaO and 0.5 to 3 parts by mass of a boron component in terms of the oxide form is molded and fired to obtain a ceramic composition that contains a diopside crystal as a primary crystal. By forming a wiring layer with conductive material on a substrate made of the ceramic composition, a ceramic wiring board is obtained.

Abstract: A porous catalyst layer containing mixed conducting oxide having substantially a perovskite structure and containing a first element selected from Co and Fe, and a second element selected from In, Sn and Y arranged in the B site in the perovskite structure is contiguous to a second surface (1a) of a selective oxygen-permeable dense continuous layer (1) containing mixed conducting oxide. A porous intermediate catalyst layer (3) containing mixed conducting oxide and at least one of Co, Fe, Mn and Pd is contiguous to a first layer (1b) of the dense continuous layer (1). A porous reactive catalyst layer (4) provided with a metal catalyst selected from at least one of Ni, Co, Ru, Rh, Pt, Pd, Ir and Re and a support is continguous to the porous intermediate catalyst layer (3) in a manner to sandwich between the dense continuous layer (1) and the porous reactive catalyst layer (4).

Abstract: The present invention relates to the use of a magnesia-zirconia brick in regenerator chambers of glass troughs, which are at least partially operated using a reducing atmosphere.

Abstract: Polycrystals with a MgO purity of at least 99.0%, a relative density of at least 90.0%, a sulfur S content of 0.01 to 50 ppm, a chlorine Cl content of 0.01 to 50 ppm, a nitrogen N content of 0.01 to 200 ppm, and a phosphorus P content of 0.01 to 30 ppm. Even when vapor deposition is conducted using electron beam deposition, almost no splash occurs, and the film characteristics of the product MgO film can also be improved.

Abstract: Low-cost, mechanically strong, highly electronically conductive porous substrates and associated structures for solid-state electrochemical devices, techniques for forming these structures, and devices incorporating the structures provide solid state electrochemical device substrates of novel composition and techniques for forming thin electrode/membrane/electrolyte coatings on the novel or more conventional substrates. In particular, in one aspect the invention provides techniques for co-firing of device substrate (often an electrode) with an electrolyte or membrane layer to form densified electrolyte/membrane films 5 to 20 microns thick. In another aspect, densified electrolyte/membrane films 5 to 20 microns thick may be formed on a pre-sintered substrate by a constrained sintering process. In some cases, the substrate may be a porous metal, alloy, or non-nickel cermet incorporating one or more of the transition metals Cr, Fe and Cu, or alloys thereof.

Abstract: The invention describes an article and method comprising a refractory article having an outer surface covered by an insulating coating over which a protective glaze is applied. The method includes applying a suspension of an insulating coating to a refractory piece, drying the suspension, applying a glaze slip over the coating, and drying the slip to form a protective glaze. In one embodiment, the article comprises a carbon-bonded alumina-graphite nozzle, an insulating coating containing hollow microspheres, and a protective glaze formed from a fusible frit. The invention is described as improving wetting to the refractory piece, reducing delamination of the glaze and insulating coating from the piece, and reducing oxidation of the piece.

Abstract: The present invention relates to a composition for converting fabric into construction material. The present invention also relates to construction material made from fabric and the process of its manufacture.

Abstract: It is a principal object of the present invention to provide low thermal expansion materials able to answer to the needs of various uses. The present invention relates to low thermal expansion materials constituted substantially from a crystalline body represented by a compositional formula RM(QO4)3, wherein R represents at least one selected from Zr and Hf, M represents at least one selected from Mg, Ca, Sr, Ba and Ra, and Q represents at least one selected from W and Mo.

Abstract: It is an object of the present invention to provide a polycrystalline MgO deposition material which is capable of obtaining a good discharge response characteristic over a wide temperature range. Additionally, it is another object of the present invention to provide a plasma display panel with an improved luminance and a material for the plasma display panel which can remarkably reduce the number of address ICs without lowering the panel luminance. In order to achieve the objects, there is provided an improvement of a polycrystalline MgO deposition material for a passivation layer of the plasma display panel. A characteristic structure is that the polycrystalline MgO deposition material is formed of a sintered pellet of polycrystalline MgO, of which MgO purity is more than 99.9% and relative density is more than 90%. Further, a Si concentration in the polycrystalline MgO is more than 30 ppm and less than 500 ppm.

Abstract: The use of a three-component water-soluble polymer comprising 5–90% by weight of a component a), preferably of the maleic acid, fumaric acid or itaconic acid type, 5–90% by weight of a component b) essentially from the group consisting of 2-acrylamido-2-methylpropanesulfonic acid, vinylsulfonic acid and vinylphosphonic acid, and 5–90% by weight of a component c) comprising acrylic acid, methacrylic acid, acrylamide or methacrylamide, as fluidizer for refractory compositions comprising alumina cement is described. The copolymer, which has a preferred molecular weight Mw of <50,000, can also be combined with further quality-improving additives such as silica, lime or soda and further customary additives for refractory compositions.

Abstract: The invention relates to a batch composition for producing a refractory ceramic shaped body, to a shaped body produced therefrom and to the use thereof. The components used are: 68 to 97 wt.-% molten magnesite, sintered magnesite or mixtures thereof, 3 to 20 wt.-% CaO and 0 to 25 wt.-% of a third component.

Abstract: The present invention is related to a magnesium oxide particle aggregate with the requirement of a first inflection point diameter is more than 0.30×10?6 to 0.60×10?6 m, a particle void volume is 0.50×10?3 to 0.90×10?3 m3·kg?1, and a micropore volume is 0.04×10?3 to 0.11×10?3 m3·kg?1 in the cumulative intrusion volume curve of said particle by having controlled particle aggregation structure so that the solid phase-solid phase reaction between magnesium oxide and the SiO2 film on the surface can be appropriately controlled.

Abstract: Composites of ceramic materials, notably alumina or metal oxides in general, with single-wall carbon nanotubes are consolidated by electric field-assisted sintering to achieve a fully dense material that has an unusually high fracture toughness compared to the ceramic alone, and also when compared to composites that contain multi-wall rather than single-wall carbon nanotubes, and when compared to composites that are sintered by methods that do not include exposure to an electric field.

Abstract: Copper or excess copper is added to one or more layers of a superconducting composite structure to reduce migration of copper form a copper based superconducting layer.

Abstract: A preform for use in a metal matrix composite, particularly for a magnesium metal composite. In the preform the reinforcing material typically is silicon carbide, boron nitride, titanium nitride, carbon or graphite. The binder used in the preform is sintered magnesium fluoride, which avoids the known problems which result from the high reactivity of molten magnesium metal with other binders, such as silica and alumina, which results in the formation of magnesium oxide in the reinforced composite. The presence of magnesium oxide crystals in the metal matrix adversely affects the properties of the composite. The preform generally has a void volume of from about 50% to about 95%.

Abstract: This invention pertains to product and process. The product is a transparent product of a density in excess 99.5% comprising spinel and having uniform mechanical properties. The process pertains to fabrication of a transparent spinel product comprising the steps of dissolving a sintering aid in water to form a neutral sintering aid solution, adding a suitable additive to the sintering aid solution, applying the sintering aid solution to spinel particles to form a spinel dispersion, sub-dividing or atomizing the spinel dispersion to form droplets comprising one or more spinel particles coated with the final spinel solution, drying the droplets to form dried coated particles comprising one or more spinel particles coated with a dried layer of the sintering aid, and densifying the dried coated particles to form a transparent spinel product having uniform optical and mechanical properties in absence of grains of exaggerated size.

Abstract: An object of the present invention is to provide a magnesium oxide particle aggregate having a controlled particle aggregation structure so that the solid phase-solid phase reaction between magnesium oxide and the SiO2 film on the surface can be appropriately controlled. The object can be achieved by a magnesium oxide particle aggregate characterized in that a first inflection point diameter is 0.30×10−6 m or less, an interparticle void volume is 1.40×10−3 to 2.20×10−3 m3/kg and a particle void volume is 0.55×10−3 to 0.80×10−3 m3/kg in a cumulative intrusion volume curve of the particle aggregate.

Abstract: 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 involves reacting a slurry comprising an aluminum source and a magnesium source, the aluminum source comprising two types of aluminum-containing compounds, preferably aluminum trihydrate and/or thermally treated calcined aluminum trihydrate. There is no necessity to wash or filter the product. It can be spray dried directly to form microspheres or can be extruded to form shaped bodies. The product can be combined with other ingredients in the manufacture of catalysts, absorbents, pharmaceuticals, cosmetics, detergents, and other commodity products.

Abstract: The object of the present invention is to provide a ceramic body that can support a required amount of a catalyst component, without lowering the characteristics such as strength, being manufactured without forming a coating layer and providing a high performance ceramic catalyst that is excellent in practical utility and durability. A noble metal catalyst is supported directly on the surface of the ceramic body and the second component, consisting of compound or composite compound of element having d or f orbit in the electron orbits thereof such as W, Co, Ti, Fe, Ga and Nb, is dispersed in the first component made of cordierite or the like that constitutes the substrate ceramic. The noble metal catalyst can be directly supported by bonding strength generated by sharing the d or f orbits of the second component, or through interaction with the dangling bond that is generated in the interface between the first component and the second component.

Abstract: The invention relates to a fire resistant substance and to a method for producing a fire-resistant lining. The fire-resistant substance contains MgO sinter and up to 5 wt. % of a reducing agent selected from the group consisting of substances that contain carbon. The lining has several layers with decreasing quantities of reducing agents.