Abstract: An optical element is formed by vacuum-sintering a molded body of ceramic particles having an average particle diameter of 1 ?m or more and 10 ?m or less and including LnxAlyO[x+y]×1.5 (Ln represents a rare-earth element, 1?x?10, and 1?y?5). Ln preferably includes at least one kind selected from La, Gd, Yb, and Lu. The optical element preferably has a refractive index of 1.85 or more and 2.06 or less, and an Abbe number of 48 or more and 65 or less. The obtained optical element has optical properties of high refractive index and low dispersibility.

Abstract: A free-standing zeolite membrane and a zeolite membrane supported on a support structure are disclosed. The free-standing zeolite membrane is fabricated by mixing zeolite particles and an optional inorganic binder, forming a green body, and sintering the green body at a sufficiently low temperature so as to prevent damage to the gas selectivity properties of the zeolite particles. The supported composite zeolite membrane is fabricated by mixing a sacrificial binder, an optional inorganic binder, boehmite sol and zeolite particles to form a slurry. The slurry is then coated onto a porous support structure, dried and sintered at a sufficiently low temperature so as to prevent damage to the gas selective properties of the zeolite particles. In both membranes, the zeolite particles span the entire thickness of the membrane to provide a high selectivity path for the flow of gas to pass therethrough.

Abstract: Method of making particle compositions exhibiting improved floodability and/or flowability properties. The compositions generally contain particles and non-surface modified nanoparticles.

Abstract: The present invention relates to glass-ceramic proppants which can be used to prop open subterranean formation fractions, as well as other uses. Proppant formulations are further disclosed which use one or more proppants of the present invention. Methods to prop open subterranean formation fractions are further disclosed. In addition, other uses for the proppants of the present invention are further disclosed, as well as methods of making the glass-ceramic proppants.

Abstract: A process for producing particle-reinforced composite materials through utilization of an in situ reaction to produce a uniform dispersion of a fine particulate reinforcement phase. The process includes forming a melt of a first material, and then introducing particles of a second material into the melt and subjecting the melt to high-intensity acoustic vibration. A chemical reaction initiates between the first and second materials to produce reaction products in the melt. The reaction products comprise a solid particulate phase, and the high-intensity acoustic vibration fragments and/or separates the reaction products into solid particles that are dispersed in the melt and are smaller than the particles of the second material. Also encompassed are particle-reinforced composite materials produced by such a process.

Abstract: A process for manufacturing a sintered ceramic composite, based on silicon nitride and ?-eucryptite, includes a step of producing a first powder blend, consisting of a powder of silicon nitride in crystalline form and a powder of a first lithium aluminosilicate in crystalline form, the composition of which is the following: (Li2O)x (Al2O3)y (SiO2)z, the lithium aluminosilicate composition being such that the set of molar fractions (x,y,z) is different from the set (1,1,2).

Abstract: In a sintered body of low temperature cofired ceramic constituting ceramic layers of a multilayer ceramic substrate provided with external conductor films, which is obtained by sintering a non-glass low temperature cofired ceramic material, respective crystalline phases of quartz, alumina, and fresnoite are deposited. The ceramic layers are, because of being in the form of a sintered body of non-glass low temperature cofired ceramic, less likely to fluctuate in composition, and the multilayer ceramic substrate can be thus inexpensively and easily manufactured therefrom. In addition, the ceramic layers have the above-mentioned respective crystalline phases deposited therein, and thus have a high joint strength with the external conductor films, and moreover, the sintered body itself has a high fracture touhgness value.

Abstract: A composite having a coefficient of thermal expansion less than 1.3×10?6 K?1 is a sintered ceramic based on an oxide and on ?-eucryptite crystals having a ?-eucryptite content of less than 55% by weight (69% by volume).

Abstract: A method is provided for making inexpensive synthetic inorganic resins that are stable, mix easily with water and may be conveniently diluted to form an easy-to-use paste for commercial applications. The method uses environmentally friendly techniques to provide improved efficiencies in the commercial production of these resins. The resins are produced by the partial reaction of phosphoric acid with sparsely-soluble oxides, or sparsely-soluble oxide minerals, that are added to the phosphoric acid under controlled conditions. In certain specific embodiments, methods are provided for modifying synthetic inorganic resins so as to produce rapid-setting phosphate cements and ceramics having high flexural strength. Unique synthetic inorganic resin formulations are also disclosed.

Abstract: An inorganic fibrous shaped body including partially-crystallized bio-soluble inorganic fibers and an inorganic binder, wherein the bio-soluble inorganic fibers are SiO2/MgO fibers or SiO2/CaO fibers having the following composition: [SiO2/MgO fibers] SiO2 66 to 82 wt % CaO 1 to 9 wt % MgO 10 to 30 wt % Al2O3 3 wt % or less [SiO2/CaO fibers] SiO2 66 to 82 wt % CaO 10 to 34 wt % MgO 3 wt % or less Al2O3 5 wt % or less.

Abstract: It is an object of the present invention to provide a light diffusing member which has excellent optical transparency and light resistance and has excellent light diffusibility despite of a small amount of filler to be added, and a method for producing the same. The light diffusing member of the present invention is a light diffusing member including a base material and ceramic particles contained in the base material, wherein the ceramic particles have a composition in which the total amount of MgO and Al2O3 is 80% by weight or more and the weight ratio [MgO/Al2O3] of MgO and Al2O3 is 0.05 to 5.

Abstract: The invention relates to a metal matrix ceramic composite (MMCC) wear-parts comprising a wearing portion formed by a ceramic cake and is impregnated by metal. The ceramic cake comprises ceramic grains and carbide grains. The invention also relates to a method for manufacturing the wear-parts. The invention further describes a grinding roll and a table liner for a vertical mill each comprising a metal matrix ceramic composite wear part(s) of the invention.

Abstract: A method and apparatus for manufacturing ceramic microspheres from industrial slag. The microspheres have a particle size of about 38 microns to about 150 microns. The microspheres are used to create a cement slurry having a density of at least about 11 lbs/g. The resultant cement slurry may then be used to treat subterranean wells.

Abstract: Polycrystalline monolithic magnesium aluminate spinels are disclosed. The polycrystalline monolithic magnesium aluminate spinels have small grain sizes and may be deposited on substrates as thick one-piece deposits. The polycrystalline monolithic magnesium aluminate spinels may be prepared and deposited by chemical vapor deposition. Articles made with the polycrystalline monolithic magnesium aluminate spinels also are disclosed.

Abstract: The application relates to a reactive ceramic binder suitable for producing ceramic products from ceramic powder, characterized in that the reactive ceramic binder represents hydroxyl compounds which carry reactive silyl groups and can be additionally (poly)siloxane-substituted.

Abstract: The invention relates to a ceramic product, manufactured from a mixture made of natural and/or synthetic inorganic non-metal raw materials, at least one binder and optionally further additives. In order to provide ceramic products allowing for disadvantages known from the prior art to be eliminated, at least with respect to corrosion and erosion, it is proposed that the ceramic products are manufactured from a mixture comprising a) at least 10% by weight (based on the weight of all solids of the mixture) oxidic components, b) 0.05 to 2.7% by weight (based on the weight of all solids of the mixture) at least one organic-based binder, acting as a solubilizer in the mixture, and c) 3 to 10% by weight (based on the weight of all solids of the mixtures) hydrous dispersing agent, and that the ceramic product contains less than 0.1% by weight (based on the total weight of the ceramic product) of carbon after the use thereof at temperatures above 600° C.

Abstract: Ceramic nanocomposite and methods for manufacturing thereof. One method comprising: receiving a fired green ceramic body comprising ceramic matrix; introducing to the fired green ceramic body submicron particles; and introducing at least one type of location-controlling dopant at an amount that is sufficient to cover the majority of the ceramic matrix grain boundaries, as well as the majority of the interfaces between the submicron particles and the ceramic matrix grains but less than an amount that would result in a concentration that exceeds the bulk solubility limit of the location-controlling dopant ions in the ceramic matrix, at the ceramic nanocomposite sintering temperature.

Abstract: One embodiment provides a method for fabricating a translucent phosphor ceramic compact comprising: heating a precursor powder to at least about 1000° C. under a reducing atmosphere to provide a pre-conditioned powder, forming an intermediate compact comprising the pre-conditioned powder and a flux material, and heating the intermediate compact under a vacuum to a temperature of at least about 1400° C. In another embodiment, the compact may be a cerium doped translucent phosphor ceramic compact comprising yttrium, aluminum, oxygen, and cerium sources. Another embodiment may be a light emitting device having the phosphor translucent ceramic provided as described herein.

Abstract: Mixed particles including noble metal particles of a noble metal, first particles of one or more metal oxides, and second particles of a metal oxide. The first particles of one or more metal oxides are selected from Al2O3, SiO2, ZrO2 and TiO2. The second particles of a metal oxide have a larger adsorptive interaction with the noble metal of the noble metal particles as compared with the metal oxide of the first particles. The noble metal particles are carried by the second particles in a larger proportion than by the first particles.

Abstract: A method for making a ceramic body, the method including: mixing inorganic ceramic-forming ingredients to form a batch; adding a rapidly hydratable cellulosic binder and a liquid vehicle to the batch and further mixing to form a plasticized mixture; extruding the plasticized mixture to form a green body. The green body can then be heated sufficiently to produce a predominant ceramic phase, thereby transforming the green body into the ceramic body.

Abstract: An electronic component 100 which includes: a dielectric body (a ceramic substrate) 110 containing a dielectric ceramic composition containing Al2TeO5 as a main component; and terminals 120 each provided on a pair of opposed side surfaces of the dielectric body 110 is provided.

Abstract: A method of fabricating a cordierite article from one or more steel slags such as blast furnace slag, converter slag and electric furnace slag. The cordierite article is useful for a particulate filter such as Diesel Particulate Filter.

Abstract: Slip based on radically polymerizable binder, polymerization initiator and filler, which comprises (A) at least one acidic monomer of general formula I (HG-Y—)aX?Z—PG)b ??Formula I (B) photoinitiator, and (C) ceramic and/or glass ceramic particles.

Abstract: The disclosed invention relates to a reinforced ceramic refractory made from an as-batched composition comprising alumina; a rare earth oxide; an oxide of a transition metal comprising Sc, Zn, Ga, Y, Cd, In, Sn, Tl or a mixture of two or more thereof; and chopped ceramic fibers containing nanofibrils; the refractory exhibiting a modulus of rupture measured at 2500° F. (1371° C.) of at least about 2500 psi, as determined by the test method ASTM C583. A process for making the reinforced ceramic refractory is disclosed.

Abstract: A solid solution-based optical material capable of transmitting infrared light, the solid solution-based optical material comprising at least two nano-sized phases intermixed in one another, wherein at least one of the at least two nano-sized phases is a solid solution containing a dissolved dopant, the dissolved dopant present in an amount sufficient to reduce a refractive index difference between the at least two nano-sized phases to about 0.2 or less when infrared light is being transmitted. Various embodiments are directed to related systems and methods. In one embodiment, the infrared light is visible infrared light, short-wave infrared light, eye safe infrared light, medium wave infrared light, long wave infrared red light, or combinations thereof.

Abstract: A scintillator having a host lattice of MgAl2O4 was prepared by hot pressing under a vacuum environment a powder mixture of MgAl2O4, CeO2, and LiF.

Abstract: An angle-dependent interference pigment based on transparent or translucent inorganic flake serving as a substrate is provided. The substrate is coated by coatings (A)+(B)+(C) and optionally coating (D), so as to form a “high-low-high” refractive index layered structure. The coatings (A) and (C) consist of metal oxides, silicate, aluminates and/or a mixture thereof. The coating (B) consist of silicon oxide, hydrous silicon oxide, aluminum oxide, hydrous aluminum oxide, magnesium oxide, hydrous magnesium oxide and/or a mixture thereof. The angle-dependent interference pigments have high color saturation in the transitional region and a significantly gradual color change in the color changing region. The present pigments can be used as colored coatings, including printing ink, or can be used in the preparation of plastics, glass, ceramics and the like. The pigment of the present invention is particularly used in the cosmetic industry which has a very high requirement on gradual color change.

Abstract: New process for obtaining lithium aluminosilicate-based (LAS) ceramic materials having a near-zero and negative thermal expansion coefficient within a temperature range of (?150° C. to 450° C.). These materials are applicable to the manufacture of components that require a high level of dimensional stability.

Abstract: Described herein is a cordierite membrane coated on a monolith substrate formed from cordierite. The membrane coating is formed from cordierite particles which have been processed to have a median particle size diameter of between 1 and 3 microns with a narrow particle size distribution suitable for forming a cordierite membrane on a cordierite monolith substrate. After the cordierite membrane is formed on the cordierite monolith substrate, the cordierite membrane monolith has a pore size of less than 1 micron.

Abstract: A crystal oriented ceramic composite body including a substrate that has a first surface and a second surface, and a {100} oriented ceramic film that is disposed to face the first surface. The {100} oriented ceramic film includes a first sectional surface. The first sectional surface is perpendicular to the first surface, and a 90 degree domain includes a domain wall within a range of ±20 degrees of a normal to the first surface and occupies a surface area of at least ? of the first sectional surface.

Abstract: A sintered cubic boron nitride (cBN) compact for use in a tool is obtained by sintering a mixture of (i) cubic boron nitride, (ii) aluminum oxide, (iii) one or more refractory metal compounds, and (iv) aluminum and/or one or more non-oxide aluminum compounds. The sintered bodies may have sufficient strength and toughness to be used as a tool material in solid, i.e. not carbide supported, form, and may be useful in heavy machining of cast irons.

Abstract: A low-temperature sintering ceramic material showing little variation in composition after firing, realizing high bending strength in a sintered body, and capable of forming a reliable ceramic substrate showing high peel strength of a surface electrode includes a main constituent ceramic material containing about 48 weight % to about 75 weight % in terms of SiO2 of Si, about 20 weight % to about 40 weight % in terms of BaO of Ba, and about 5 weight % to about 20 weight % in terms of Al2O3 of Al, and an accessory constituent ceramic material containing, relative to 100 parts by weight of the main constituent ceramic material, about 2 parts to about 10 parts by weight in terms of MnO of Mn and about 0.1 parts to about 10 parts by weight respectively in terms of TiO2 and Fe2O3 of at least one selected from Ti and Fe, and substantially not includes both Cr oxide and B oxide.

Abstract: Methods of forming at least a portion of an earth-boring tool include providing particulate matter comprising a hard material in a mold cavity, melting a metal and the hard material to form a molten composition comprising a eutectic or near-eutectic composition of the metal and the hard material, casting the molten composition to form the at least a portion of an earth-boring tool within the mold cavity, and providing an inoculant within the mold cavity. Methods of forming a roller cone of an earth-boring rotary drill bit comprise forming a molten composition, casting the molten composition within a mold cavity, solidifying the molten composition to form the roller cone, and controlling grain growth using an inoculant as the molten composition solidifies. Articles comprising components of earth-boring tools are fabricated using such methods.

Abstract: Methods of forming at least a portion of an earth-boring tool include providing at least one insert in a mold cavity, providing particulate matter in the mold cavity, melting a metal and the hard material to form a molten composition, and casting the molten composition. Other methods include coating at least one surface of a mold cavity with a coating material having a composition differing from a composition of the mold, melting a metal and a hard material to form a molten composition, and casting the molten composition. Articles comprising at least a portion of an earth-boring tool include at least one insert and a solidified eutectic or near-eutectic composition including a metal phase and a hard material phase. Other articles include a solidified eutectic or near-eutectic composition including a metal phase and a hard material phase and a coating material in contact with the solidified eutectic or near-eutectic composition.

Abstract: To provide an amorphous silica powder suitable for a sealing material for semiconductors having improved HTSL properties and HTOL properties, and a process for its production. An amorphous silica powder containing Al in an amount of from 0.03 to 20 mass % as calculated as Al2O3 measured by atomic absorption spectrophotometry, wherein the average particle size is at most 50 ?m, and when the amorphous silica powder is divided according to the average particle size into two powders, a powder having a particle size smaller than the average particle size has a higher content as calculated as Al2O3 than a powder having a particle size larger than the average particle size.

Abstract: Ceramics are made of preceramic paper or board structures in a particular shape previously represented in a paper structure, in which the preceramic papers or boards have a content of ceramic fillers between 30 and 95 wt-%, with the ceramic fillers having a particle size <30 ?m. A method for manufacturing such ceramics and the use thereof are also provided.

Abstract: A composition for extrusion-molded bodies which comprises a) an inorganic material that sets as a result of baking or sintering, and b) a methylhydroxyethyl cellulose having a DS(methyl) of from 0.8 to 2.5, an MS(hydroxyethyl) of from 0.20 to 1.20 and a sum of the DS(methyl) and the MS(hydroxyethyl) of at least 2.00 is useful for producing extrusion-molded bodies for use as a carrier for a catalyst, a catalyst, a heat exchanger, or a filter.

Abstract: Provided is a mineral wool that includes recycled material. The mineral wool is characterized by an acid to base ratio within a specified range. Also provided is a method of manufacturing the mineral wool that includes selection of post-consumer or post-industrial recyclable materials. Application of the mineral wool to products such as an acoustical ceiling panel is also provided.

Abstract: To provide a process for producing high-purity highly oxidized refractory particles easily with good productivity by treating a spent refractory containing ZrO2 and Al2O3 to reduce components other than ZrO2 and Al2O3 to levels unproblematic for practical use as raw material for electrofused refractories and to increase the content of the ZrO2 and/or Al2O3 component. A process for producing refractory particles, which comprises introducing to and melting in a melting furnace both a spent refractory which contains, by mass % as chemical components, from 75 to 97% of ZrO2 and/or Al2O3, from 2 to 25% of SiO2, from 0.4 to 7% in total of Na2O, K2O and Li2O(Na2O+K2O+Li2O), at most 2% of CaO and at most 2% of MgO, and carbon particles in an amount of from 1 to 8% by outer mass percentage based on the spent refractory, and after the melting, tapping the melt while blowing compressed air against the melt to form refractory particles having the content of ZrO2 and/or Al2O3 increased.

Abstract: The present invention provides a fine ?-alumina particle having a degree of ?-transformation of not less than 95%, a BET specific surface area of not less than 10 m2/g, a degree of necking of not more than 30%, and a total content of Si, Fe, Cu, Na and Mg of not more than 500 ppm.

Abstract: An insulator including alumina in an amount between about 90 and about 99% by weight and an oxide mixture or glass mixture including Boron Oxide, Phosphorus Oxide, or both Boron and Phosphorus Oxide.

Abstract: A method of forming nanometer sized fine particles of functional ceramic from a bulk functional ceramic, particularly fine particles of phosphorous ceramics from a bulk phosphor material is disclosed. The method relies on irradiation of a bulk phosphorous ceramic in a liquid with an ultrashort-pulsed-laser-fragmentation beam to thereby form nanometer sized particles of the phosphorous ceramic. The method is unique in that the generated particles retain the chemical and crystalline properties of the bulk phosphorous ceramic. The generated solutions are stable colloids from which the particles can be isolated or used as is.

Abstract: Nanoparticles are claimed which consist of 50-99.99% by weight of alumina and 0.01-50% by weight of metal oxide of elements of main group I and II of the Periodic Table. These nanoparticles are obtained by drying a suspension of aluminum chlorohydrate, oxide formers and, if desired, crystallization nuclei, followed by calcining and comminution of the resultant agglomerates.

Abstract: The disclosed subject matter relates to ceramic powders coated with a layer of nanoparticles of multiple crystalline structures and processes for obtaining the same. These coatings can be obtained by means of the introduction of precursors in water in oil emulsions, which upon decomposition during its detonation, form the nanoparticles that adhere to the surface of the ceramic powder intended to coat. The later base ceramic powder can be synthesized during the emulsion detonation (W/O) or simply be directly placed in its composition. The properties of the obtained coating, such as thickness, adhesion, porosity and coated surface percentage, can be adjusted according to the application desired. The ceramic powders coated can applicable to several types of areas of nanotechnology, such as electronics, biomedicine, chemistry, ceramics, energy industries, and the like.

Abstract: A separation membrane according to the present invention is characterized by having a porous tube containing an alumina as a main component and an attachment member disposed in a connection position of the porous tube, wherein the porous tube and the attachment member are bonded by a ceramic oxide-based bonding agent containing 17 to 48 wt % of SiO2, 2 to 8 wt % of Al2O3, 24 to 60 wt % of BaO, and 0.5 to 5 wt % of ZnO as essential components and containing at least one of La2O3, CaO, and SrO, and a thin zeolite layer is formed on a surface of the porous tube. The attachment member is bonded to the porous tube before the formation of the zeolite layer. Therefore, the bonding agent can have a melting temperature higher than 600° C., which is the upper heatproof temperature limit of the zeolite. Thus, the ceramic oxide material for the bonding agent can be selected from a wider range of compositions such as glass compositions (without limitations on the glass softening temperature).

Abstract: One embodiment of the present invention relates to spherical ceramic elements, such as proppants, for maintaining permeability in subterranean formations to facilitate extraction of oil and gas therefrom. The strength of the ceramic element may be enhanced by combining materials having different coefficients of thermal expansion. Methods of making the ceramic elements are also disclosed.

Abstract: There is disclosed a bonded element manufactured from a bonding material composition being capable of contributing to the lowering of thermal expansion of a bonding material layer sufficiently to relax any thermal stress generated in a honeycomb structure and largely inhibiting the cracking of the resultant honeycomb structure as well. In a bonded element in which two or more objects to be bonded are integrated via a bonding material layer, the bonding material layer having a Young's modulus of 20% or less of that of the objects to be bonded and having an average linear thermal expansion coefficient of 70% or less of that of the objects to be bonded, the bonding material layer being prepared from a bonding material composition composed mainly of fillers and a matrix in which fillers having an average linear thermal expansion coefficient of 2.0×10?6·K?1 or less are contained.

Abstract: A synthetic glass family in the quaternary phase field of CaO—SiO2-Al2O3-MgO (CSAM) with hydraulic and pozzolanic properties for use in differing applications in the gas and oil well cementing area. A method of making a mud-to-cement (MTC) slurry and a method for treating oil and gas wells with the MTC slurry containing a homogenous amorphous synthetic glass made from a mixture of inorganic materials selected from the group consisting of CSAM, wherein the cementing glasses with the mixture of inorganic materials are in a 100% amorphous phase with a degree of crystallization of zero.

Abstract: A cordierite material having an increased ?-cordierite phase and a reduced ?-cordierite phase is described. Methods of making the cordierite material are further described, and a proppant containing the cordierite is further described, as well as use of the proppant.

Abstract: Disclosed and described are multi-component inorganic phosphate formulations of acidic phosphate components and basic oxide/hydroxide components. Also disclosed are high solids, atomizable compositions of same, suitable for spray coating.