Abstract: The present invention relates to a preparation method of a porous ceramic, the porous ceramic, and a use thereof in the electronic cigarette. The method of preparing a porous ceramic includes: mixing amorphous silica, aluminum oxide and iron oxide uniformly to obtain a mixture; sintering the mixture at a temperature of 1000° C. to 1400° C. for 0.5 hour to 3 hours to obtain a precursor; grinding the precursor to obtain precursor powder; mixing the precursor powder, sodium silicate, and porogen uniformly to obtain a premix; mixing and extruding the premix with water to obtain a molded body; and heat preserving the molded body at a temperature of 200° C. to 600° C. for 1 hour to 6 hours, and sintering the molded body at a temperature of 700° C. to 1200° C. for 0.5 hour to 3 hours to obtain the porous ceramic.

Abstract: A system and method for making a layered dental appliance. The system can include a first mold comprising a negative of a first layer of a layered dental appliance, a second mold comprising a negative of a second layer, and a dental core dimensioned to be at least partially received in the first mold and the second mold. The method can include positioning a first slurry in the first mold, and pressing the dental core into the first slurry to form a first article comprising the dental core and a first layer formed from the first slurry. The method can further include removing the first article from the first mold, positioning a second slurry in the second mold, and pressing the first article into the second slurry to form a second article comprising the dental core, the first layer, and a second layer formed from the second slurry.

Abstract: Provided are a zinc oxide-based sputtering target, a method of preparing the same, and a thin film transistor including a barrier layer deposited by the zinc oxide-based sputtering target. The zinc oxide-based sputtering target includes a sintered body that is composed of zinc oxide in which indium oxide is doped in a range from about 1% w/w to about 50% w/w. A backing plate is coupled to a back of the sintered body. The backing plate supports the sintered body.

Abstract: Disclosed are ceramic bodies comprised of composite cordierite aluminum magnesium titanate ceramic compositions and methods for the manufacture of same.

Abstract: An intermetallic bonded diamond composite composition and methods of processing such a composition are provided by the present invention. The intermetallic bonded diamond composite composition preferably comprises a nickel aluminide (Ni.sub.3Al) binder and diamond particles dispersed within the nickel aluminide (Ni.sub.3Al) binder. Additionally, the composite composition has a processing temperature of at least about 1,200.degree. C. and is processed such that the diamond particles remain intact and are not converted to graphite or vaporized by the high-temperature process. Methods of forming the composite composition are also provided that generally comprise the steps of milling, pressing, and sintering the high-temperature intermetallic binder and diamond particles.

Abstract: Provided are: a readily sinterable silicon carbide powder substantially having a stoichiometric composition and from which a dense sintered body can be obtained; a silicon carbide ceramic sintered body having a low specific resistance; and a production method thereof. This readily sinterable silicon carbide powder has a carbon/silicon elemental ratio of 0.96 to 1.04, an average particle diameter of 1.0 to 100 ?m, and a ratio of 20% or less of an integrated value of an absorption intensity in a chemical shift range of 0 to 30 ppm to an integrated value of an absorption intensity in a chemical shift range of 0 to 170 ppm, in a 13C-NMR spectrum. By sintering this silicon carbide powder under pressure, there can be produced a dense sintered body having a low specific resistance and a high purity.

Abstract: Disclosed herein are a sintered magnesium oxide material which is capable of suppressing the occurrence of splashing during film formation and which is less likely to cause clogging of a supply inlet of a film formation device, a deposition material for PDP-protecting film using the same, and a process for producing the sintered material. The sintered magnesium oxide material contains magnesium oxide, 3 to 50 mass % of an oxide of a Group 2A element other than magnesium in the periodic table, and if necessary, 1000 ppm or less of one or two or more elements selected from the group consisting of aluminum, yttrium, cerium, zirconium, scandium, and chromium, and has a disk-like, elliptical plate-like, polygonal plate-like, or half-moon-like shape or a cubic or rectangular solid shape with rounded apexes.

Abstract: There is provided a method for manufacturing a honeycomb structure comprising the steps of: forming kneaded clay containing a forming mixture of cordierite-forming materials and an organic binder to manufacture a honeycomb formed article, and firing the honeycomb formed article. The forming mixture contains at least hydrophilic talc. The method enables to perform extrusion forming at a high rate even without raising an apparatus load in order to improve productivity and can provide a honeycomb structure.

Abstract: A method of pressure forming a brown part from metal and/or ceramic particle feedstocks includes: introducing into a mold cavity or extruder a first feedstock and one or more additional feedstocks or a green or brown state insert made from a feedstock, wherein the different feedstocks correspond to the different portions of the part; pressurizing the mold cavity or extruder to produce a preform having a plurality of portions corresponding to the first and one or more additional feedstocks, and debinding the preform. Micro voids and interstitial paths from the interior of the preform part to the exterior allow the escape of decomposing or subliming backbone component substantially without creating macro voids due to internal pressure. The large brown preform may then be sintered and subsequently thermomechanically processed to produce a net wrought microstructure and properties that are substantially free the interstitial spaces.

Abstract: A method for manufacturing a silicon carbide (SiC) sintered material according to the embodiment includes the steps of forming a mixture by mixing SiC powder with a resin and a ball; drying the mixture; and loading the dried mixture in a mold to sinter the dried mixture. The ball includes at least one of a Teflon ball, an SiC ball, a silicon nitride ball, an alumina ball, and a zirconia ball.

Abstract: A silica structure includes mesoporous silica spheres; and connection portions each of which includes metal oxide, and each of which connects the mesoporous silica spheres to each other.

Abstract: A method of making a near-net superhard material body includes preparing granules from a mixture of superhard powder, binders, and fluids, compacting the granules to form a soft green complex-shaped body, heating the soft green body in a furnace to form a hard green body free from residual binders, embedding one or more of the hard green bodies in a containment powder or a containment means and forming a pressure cell, sintering the cell at high pressure and high temperature, and removing the containment powder from the cell or removing the inserts from the containment means to reveal one or more near-net bodies.

Abstract: The invention is a solution impregnation and drying treatment that imparts a high temperature binder into an already formed porous green body composed of particulate batch material. The batch material includes inorganic compounds and binder. The result is reduced sag and distortion and the same or increased strength when the porous body is later fused during sintering/firing.

Abstract: A method of producing a honeycomb structure includes producing a honeycomb structure using methyl cellulose as at least part of a binder, the methyl cellulose having a weight average molecular weight (Mw) of 4,000,000 to 5,000,000, and having an integral molecular weight distribution value of components having a molecular weight of 100,000 or less in the integral molecular weight distribution curve of 15 or less.

Abstract: A superhard element (22) for a machine tool, comprising polycrystalline cubic boron nitride (PCBN) material containing whiskers of a ceramic material, the PCBN material comprising at least about 50 volume percent cubic boron nitride (cBN) material dispersed in a binder matrix comprising a compound including titanium and the whiskers; the content of the whiskers being at least 1 weight percent and at most 6 weight percent of the binder matrix.

Abstract: The present invention relates to extrudable ceramic masses and other masses which set as a result of baking or sintering, which masses comprise specific additives based on water-soluble cellulose ethers, an extrusion process, the extrudates and their use.

Abstract: A method for manufacturing a ceramic product without a sintering process, which requires no removal of binder to ensure favorable brittle fracture resistance of the ceramic product. The method includes mixing a ceramic powder with an additive and a binder to prepare a ceramic powder mixture, and treating the ceramic powder mixture through vacuum vibration pressing, to thereby form a ceramic product. The ceramic powder may include a fused ceramic powder prepared by heating the ceramic material to a melting point of the ceramic material or higher to fuse the same, cooling the fused material, and milling the cooled material.

Abstract: Embodiments of the present invention disclosed herein include a sintering aid composition that has a material useful for sintering, an amine, and optionally a carboxylic acid.

Abstract: A cutting template or a cutting block, preferably to a cutting template or a cutting block for use in medical technology.

Abstract: The present invention relates to a production method for a truly spherical ceramic ball by means of a rotational method, and to a device therefor. More specifically, a method is disclosed which uses seeds to facilitate formation of ceramic balls into a spherical shape and repeats heating and cooling or grades ceramic balls according to size to form ceramic balls having a similar size during the formation process, thereby increasing strength of the ceramic balls while ensuring excellent particle size distribution. Also, an apparatus for producing ceramic balls using a rotation manner is disclosed.

Abstract: The invention describes a high porosity ceramic article and method of manufacturing the same and intermediate dried honeycomb green body articles. The article may have a total porosity of at least about fifty-five percent, above sixty percent, or even above sixty-five percent. The method of manufacture includes mixing a ceramic-forming powder, an organic pore former, water, and a crosslinker. Drying causes a condensation reaction between the pore former and the crosslinker thereby forming a network within the green body that strengthens the green body and reduces cracking. The pore former may include starch or an activated cellulose compounds. Secondary pore forming agents, such as graphite may also be included.

Abstract: A method of manufacturing a sintered body is provided. A molding powder, a gel-forming material powder and a solvent are mixed at a temperature not higher than a dissolving point of the gel-forming material. A treatment of pulverizing agglomerates containing the molding powder, gel-forming material powder and solvent absorbed in the gel-forming material powder is carried out. The mixture is then heated to a temperature not lower than the dissolving point thereby forming a sol. The sol is then cooled to a temperature not higher than the gel point, thereby forming a molding material. The molding material is used for producing a sintering body.

Abstract: A method for producing a sintered body includes: a) molding a composition containing a powder primarily made of an inorganic material and a binder including an aliphatic carbonic acid ester based resin in a predetermined shape so as to obtain a compact; b) exposing the compact to a first atmosphere containing an alkaline gas and thus decomposing and removing the aliphatic carbonic acid ester based resin from the compact so as to obtain a degreased body; and c) sintering the degreased body so as to obtain a sintered body.

Abstract: In a method of preparing a boron carbide material, boron carbide powder is washed with essentially pure water at an elevated temperature to generate washed boron carbide powder. The washed boron carbide powder is combined with a sintering aid. The mixture of the boron carbide powder and the sintering aid is pressed to form a shaped material, and the shaped material is sintered. A sintered boron carbide material comprises a boron carbide component that includes boron carbide, elemental carbon, and not more than about 0.6 wt % of oxygen on the basis of the total weight of the boron carbide component. The sintered boron carbide material has a density of at least about 99% of the theoretical density. Another sintered boron carbide material comprises a boron carbide component that includes boron carbide, silicon carbide, elemental carbon, and not more than about 0.3 wt % oxygen on the basis of the total weight of the boron carbide component, and has a density of at least about 97% of the theoretical density.

Abstract: To achieve the object of providing a mixture for producing sinterable mouldings that allows high pressed densities to be obtained in a green compact, a mixture is proposed which comprises at least one metallic material and/or plastics material and at least one pressing aid, the pressing aid comprising about 0.5% to about 60% by weight, based on the total amount of the pressing aid, of at least one amide, and about 40% to about 99.5% by weight, based on the total amount of the pressing aid, of at least one carnauba wax.

Abstract: Methods and apparatus relating to aluminum nitride baffles are provided herein. In some embodiments, a baffle for use in semiconductor process chambers may include a body comprising aluminum nitride and a metal oxide binding agent, wherein a ratio of aluminum nitride to metal oxide on a surface of the body is greater than or equal to the ratio within the body. In some embodiments, the body may have a center stem and an outer annulus coupled to and extending radially outwards from a lower portion of the center stem. In some embodiments, a method of fabricating a baffle may include sintering aluminum, nitrogen, and a metal oxide binding agent to form a body of the baffle, the body having excess metal oxide binding agent disposed on a surface thereof; and removing a bulk of the excess metal oxide binding agent from a surface of the body.

Abstract: Use of Ti and Nb cemented in TiC in prosthetic joints, such as prosthetic joint components made from sintered superhard materials.

Abstract: A refractory composition comprising at least 50 weight percent chromic oxide (Cr2O3), as measured by chemical analysis. The composition includes fused chromia-containing grain, powdered chromic oxide and sintered chromia-containing grain. The fused chromia-containing grain and the sintered chromia-containing grain comprise at least 50 weight percent chromia oxide, as measured by chemical analysis.

Abstract: A high intensity discharge lamp includes an arc tube with a chemical fill, capillaries extended from the arc tube, electrodes fed through the capillaries into the arc tube, and a frit seal that seals the capillaries, where the frit seal includes silica (SiO2) in a range of more than 0 wt % to less than 5 wt %, alumina (Al2O3), and one of dysprosia (Dy2O3) and yttrium oxide (Y2O3). This frit seal material can withstand a higher operating temperature so that the length of the capillaries can be reduced compared to those sealed with conventional frit seal material.

Abstract: A method and apparatus for distributing granular constituents within polycrystalline diamond composites is disclosed in one embodiment of the invention as including providing a mixture of diamond particles of various different sizes. This mixture is then agitated to substantially segregate the diamond particles within the mixture according to particle size. The segregated mixture may then be sintered to fuse the diamond particles together and thereby immobilize the diamond particles within the mixture. In selected embodiments, the mixture may be agitated while adjacent to a substrate material. The mixture may be fused to the substrate when the diamond particles are sintered.

Abstract: Methods for producing substantially round, spherical and sintered particles from a slurry of a calcined, uncalcined or partially calcined raw material having an alumina content of more than 55% by weight, and a mullite growth promoter in an amount of from about 2 to about 10% dry weight of the total solids in the slurry. Methods for using such substantially round, spherical and sintered particles in hydraulic fracturing operations.

Abstract: A method of green joining ceramic components is disclosed, particularly for use in forming a discharge body for a ceramic metal halide lamp. The process includes providing a first green ceramic component having a male joining surface, and providing a second green ceramic component having a female joining surface dimensioned to matingly receive the first component. The first and second green ceramic components are assembled along the joining surfaces, the assembled components are uniformly heated to join the first and second components. The joined components are next cooled in a cooling bath that uniformly cools the joined components. Thereafter, the joined green part may be inserted in the furnace for debindering and sintering.

Abstract: A ceramic component is disclosed, including a sintered ceramic body from a composition comprising a first ceramic material, and a plurality of inclusions in the ceramic body, each inclusion comprising graphite and a second material.

Abstract: A low temperature process for making radiopac materials is disclosed. The process utilizes industrial/agricultural waste as raw materials and includes mixing 11-88% w/w of the industrial/agricultural waste materials, 11-88% w/w of an alkali or alkaline earth metal compound and 7-15% w/w of a phosphatic binder to obtain a homogenized mixture. The homogenized mixture is compressed at a pressure in the range of 100-300 Kg/cm2 to obtain compacted green material samples. The compacted green material samples are baked for 1-3 hours in an Air oven in the temperature range of 90-130° C., and are sintered at a temperature in the range of 920 to 1300° C. for a soaking period of 1-3 hours under air environment in a muffle furnace to obtain the radiopac material.

Abstract: A method of manufacturing a sintered body is provided. A molding powder, a gel-forming material powder and a solvent are mixed at a temperature not higher than a dissolving point of the gel-forming material. A treatment of pulverizing agglomerates containing the molding powder, gel-forming material powder and solvent absorbed in the gel-forming material powder is carried out. The mixture is then heated to a temperature not lower than the dissolving point thereby forming a sol. The sol is then cooled to a temperature not higher than the gel point, thereby forming a molding material. The molding material is used for producing a sintering body.

Abstract: The present invention relates to a tool for manufacturing a casting core, for a turbomachine blade with a leading edge and a trailing edge, the core (10) comprising a thick part on the leading edge side and a thin part (10A1) on the trailing edge side, comprising first and second dies (530, 540) of the core that can move in a direction (F?1 and F?2 respectively) one with respect to the other between a molding position and a demolding position, where appropriate with sub-components that can move relative to the dies, wherein the parts of the dies corresponding to said thin part of the core do not include a movable sub-component, mechanical ejectors (570) being provided on one or other of the dies, in such a way that the thin part (10A1) of the core is demolded along the main direction of opening.

Abstract: A composite of a metal matrix with one or more incorporated secondary phases is referred to as a metal matrix composite (MMC). Secondary phase refers to all the particles or fibers which have a different composition than the metal matrix, and which are incorporated therein. As incorporation phases, elements and compounds are possible which, as a result of their material characteristics, are suited for improving individual properties of the metal matrix. Besides an improvement in individual properties of the pure metal matrix as a result of the incorporated secondary phase, certain properties of the metal are also degraded, in particular by particles having a size of 1 to 50 ?m. For example, the elongation at break decreases, the strength may decrease, or the tribology may become less favorable.

Abstract: A method for manufacturing a diamond composite, includes: a) mixing diamonds with additives, the mixture comprising at least 50 wt % and less than 95 wt % of diamonds and more than 5 wt % additives; b) forming a work piece from the mixture using a pressure of at least 100 Mpa; c) heating the formed work piece to at least 300° C. for removing possible water and wholly or partially removing additives; d) heating the work piece and controlling the heating temperature and heating time so that a certain desired amount of graphite is created by graphitization of diamonds, wherein the amount of graphite created by graphitization is 3-50 wt % of the amount of diamond; e) infiltrating silicon or silicon alloy into the work piece.

Abstract: This invention relates to a process of a lightweight, heat insulating, high compressive strength, water insoluble material by heat treatment at temperatures between 650-950° C., possessing a low bulk density (from 300 to 800 kg/m3) and improved heat insulating capacity (?=0.07 to 0.25 W/m·deg.) when it has been used to form an article having a compressive strength of from 0.49 to 5.59 Mpa. The starting chemical composition comprising more than 90% by weight of either perlite, pumice or pumice related group of materials or mixture of them and an additive in quantities less than 10% by weight containing Na2O and B2O3.

Abstract: A method for manufacturing a ceramic heater includes mixing a conductive ceramic powder, an insulating ceramic powder, a sintering aid powder, and a solvent so as to obtain a slurry, drying the slurry so as to obtain a heating-element material powder, forming a green resistance-heating element from the heating-element material powder, embedding the green resistance-heating element in a ceramic substrate, and firing a resultant assembly. Water is used as the solvent. Drying of the slurry is performed by use of a fluidized-bed drying apparatus, a rotary drying apparatus, or a vibratory drying apparatus and, the apparatus being employed in combination with a medium for pulverization.

Abstract: A carbon heating element having an arbitrary specific resistance and an arbitrary shape which are arbitrary necessary as a heating element, and a method of producing the same. The carbon heating element is obtained by uniformly dispersing one or at least two metal or metalloid compounds into a composition having shapability and showing a high yield of a carbon residue after firing, shaping the dispersed material-containing mixture thus obtained, and firing the shaped material under a nonoxidizing atmosphere.

Abstract: The invention relates to a process for producing a molding, characterized in that a silicatic solid is mixed with a solution comprising a first silicatic binder and the mixture is then press-molded, and the compression molding is then post-treated with a solution comprising a second silicatic binder, and to silicatic moldings obtainable by this process, and also to their use as construction material, insulator material, gasket material or fire-resistant material.

Abstract: A green product for use in fabricating a ceramic article comprises a ceramic powder immobilized within a silicone matrix, wherein the silicone matrix comprises one or more cross linked or polymerized silicone monomers and/or oligomers, wherein the one or more cross linked or polymerized silicone monomers and/or oligomers have a alkenyl reactive functional group and a hydride reactive functional group. Processes for forming a green product and a ceramic core with the silicone monomers and/or oligomers are also disclosed.

Abstract: A novel process for manufacturing of injection molded metal, ceramic, and CERMET parts, in a manner amenable to high-volume, low-cost manufacturing, comprising the steps of forming a mechanical mixture of metal and/or ceramic powders at room temperature, a binder and a liquid carrier, said carrier being a solvent for the binder at elevated temperature; supplying the as-mixed components to the inlet hopper of an injection molding machine or extruder; molding or extruding green parts; and then drying and sintering the green parts to obtain net or near-net-shape finished metal, ceramic or CERMET parts.

Abstract: A method for fabricating a green ceramic article containing organic compounds. The method involves first heating the green ceramic article to sequentially remove the organic compounds such that the organic compound with the lowest weight loss onset temperature is substantially removed prior to the next higher weight loss onset temperature organic compound. The organic compounds include but are not limited to at least an oil or oil-based compound having a flash point or an ignition temperature, higher than the weight loss onset temperature. For this system the temperature during heating is maintained below the flash point of the oil or oil-based compound until substantial removal thereof from the green ceramic structural body. After the organic compounds are substantially removed, the green ceramic article is further fired to a temperature and for a time to obtain a final fired body.

Abstract: The invention relates to a method for the production of a sintered, microcrystalline ?-Al2O3-based shaped body, which are used, for example, as abrasive bodies, wherein an ?-Al2O3 powder is used as starting material, said powder having an average particle diameter of <2 ?m, and processed with at least one binder and a solvent with the purpose of obtaining an extrudable material that is subsequently extruded. The extrudate is then further processed into a shaped body that is sintered at a temperature range of between 1300° C. and 1750° C.

Abstract: An improvement in a method of forming ceramic articles comprising an oil component or extrusion aid, the improvement including removing a substantial portion of the oil component, prior to firing, by applying a solvent to the green ceramic article to dissolve the oil component.

Abstract: A combinatorial library includes a gelcast substrate defining a plurality of cavities in at least one surface thereof; and a plurality of gelcast test materials in the cavities, at least two of the test materials differing from the substrate in at least one compositional characteristic, the two test materials differing from each other in at least one compositional characteristic.

Abstract: A process for the preparation of bulk foams which comprises contacting ceramic foam particles with a hydrophobic material to form impregnated and/or coated ceramic foam particles with hydrophobic properties. The impregnated and/or coated ceramic foam particulate material is mixed with a ceramic binding material with or without an organic binder in an aqueous composition solution to form a castable and pressable mixture. The castable and pressable mixture is cast, and optionally pressed, in a mold to form a wet green body, which is in turn dried to form a dried green body, and is then fired and sintered to form a bulk shape foam article.

Abstract: A process for producing ceramic, or ceramic composite, components having microfeatures by creating a chemical reaction in a castable slurry to bond nano-sized or submicron-sized ceramic powders. The bonding process that gives coherency and strength to the material creates a reaction product or gel-phase resulting from a chemical reaction between the ceramic powder and a reagent, such as an acid, alkali, or inorganic salt solution, that binds the ceramic powder. This gel-phase can be de-hydrated, cured, or crystallized by a higher-temperature firing step, but at a temperature lower than the temperature range at which sintering starts to occur in the ceramic (typically lower than 1,000°C.