Abstract: The invention provides a porous glass ceramic composition manufactured using conventional raw materials and one or more waste materials, wherein the waste materials are capable of producing glass forming oxides, glass modifying oxides and pore forming oxides. The waste materials are selected from a group that includes cullet, pozzolanic waste and fly ash. The invention also provides a method for manufacturing the porous glass ceramic composition.

Abstract: A method for the continuous production of a cellular ceramic plate having asymmetric cells comprising thermally treating ceramic particles and a blowing agent in a foaming furnace while conveying said ceramic particles and said blowing agent at a first speed thereby forming a cellular ceramic plate, and annealing said cellular ceramic plate in an annealing lehr by cooling it down while conveying it at a second speed, larger than said first speed, thereby stretching and cooling said cellular ceramic plate.

Abstract: Rotary spinner apparatuses, systems and methods for producing fibers from molten materials are disclosed. Certain exemplary embodiments include rotary spinners including a hub, a slinger, an annular member, a retaining member, and a plurality of fasteners. In certain embodiments the hub, the retaining member, and the plurality of fasteners are structured to limit axial movement of the annular member relative to the hub member and to allow radial expansion and contraction of the annular member relative to the hub member. In certain embodiments the annular member is structured to contact the hub at a plurality of contact areas and is spaced apart from the hub at a plurality of gap areas. In certain embodiments the slinger is structured to contact the hub at a plurality of contact areas and is spaced apart from the hub at a plurality of gap areas.

Abstract: The present disclosure provides a composite heat-dissipation substrate and a method of manufacturing the same. The composite heat-dissipation substrate includes a first ceramic layer having insulating properties, a second porous ceramic layer and a metal layer, wherein the first ceramic layer and the second ceramic layer are continuously connected to each other so as not to form an interface therebetween, and the metal layer is infiltrated into plural pores of the second ceramic layer to be coupled to the ceramic layers, whereby interfacial coupling force between the ceramic layers and the metal layer is very high, thereby providing significantly improved heat dissipation characteristics.

Abstract: A method of shaping a green body provides a shaped green body comprised of a plurality of sinterable particles and an organic binder. Such a method includes: (1) molding a mixture of sinterable particles and organic binder into the shape of an initial green body or intermediate, wherein the sinterable particles include at least one of metal particles or ceramic particles; and (2) shaping the green body intermediate with at least one of a stream of energy or a stream of matter, wherein the shaping yields a green body having a desired shape. The shaped green body can be sintered in order to provide a hardened body having substantially the shape of the shaped green body.

Abstract: High strength transparent corundum ceramics using corundum powder and methods of manufacture are disclosed. The method of forming transparent corundum ceramics includes milling corundum powder in aqueous slurry with beads. The method further includes processing the slurry by a liquid shaping process to form a gelled body. The method further includes sintering the gelled body in air and pressing the gelled body by hot isostatic pressing to form a ceramic body.

Abstract: A hybrid part for use in a gas turbine engine has a platform and an attachment feature. The platform and an exterior portion of the attachment feature are formed from a monolithic ceramic material. A ceramic matrix composite material is located adjacent interior portions of the platform and the attachment feature and is bonded to the monolithic ceramic material.

Abstract: The present invention is generally directed to flexible ceramic fibers and to methods for making same. In one embodiment, the present invention relates to flexible ceramic fibers that are heat and chemical resistant, and to a method for making same. In another embodiment, the present invention relates to flexible ceramic nanofibers, and to a method for making same. In still another embodiment, the present invention relates to electrospun flexible ceramic nanofibers, products that include such fibers, and to methods of making same.

Abstract: A transparent ceramic having terbium oxide (Tb2O3) in a molar ratio of at least 40%; and at least one oxide selected among an yttrium oxide, a scandium oxide, and a lanthanide rare earth oxide, wherein (1) the crystal structure of the terbium-oxide-based ceramic does not contain a non-cubic-crystal phase, (2) the mean crystal particle diameter is in a range of 0.5 to 100 ?m, and (3) the ceramic comprises a sintering auxiliary having no incidence of deposition of a non-cubic-crystal phase in the crystal structure of the terbium-oxide-based ceramic. This transparent ceramic makes a magneto-optical element that performs at least as well as terbium gallium garnet or other existing monocrystal materials. It also makes a functional element for an optical isolator in the infrared region between 500 nm and 1.5 ?m having very little scattering and very few birefringence components.

Abstract: A nanoporous ceramic membrane and preparation method thereof is provided. The nanoporous ceramic membrane is prepared by halloysite nanotubes (HNTs), and its porosity is between 35% to 85%. This method comprises steps as following: HNTs and polymers with a certain ratio are dispersed in organic solvent, and HNTs/polymer composite fibers are prepared through electrospinning method; after the HNTs/polymers composite fibers are laminated, they are sintered at high temperature in a certain or vacuum atmosphere, and a nanoporous ceramic membrane is obtained. Ceramic membrane prepared by this method is corrosion resistant, thermal resistant, and have large specific surface area, it may widely applied in the field of filtration, catalyst carrier and purification of high-temperature gas, etc.

Abstract: The invention relates to a method of producing a dental restoration (40), the method comprising the steps of providing a metallic frame (21) having an inner and an outer surface, applying one or more opaque layer(s) (23) or composition on the outer surface of the metallic frame, providing a facing precursor (31) having a volume A, mating the facing precursor on the outer surface of the metallic frame coated with the opaque layer using a mating composition to obtain a dental restoration intermediate, firing the dental restoration intermediate to a temperature where the facing precursor sinters to obtain a sintered facing having the volume B, and optionally applying a stain and/or glacing layer on the outer surface of the sintered facing. The invention also relates to a dental restoration obtainable by such a process.

Abstract: A molding is produced with a disk-shaped or plate-shaped basic body having a large number of knob-like and/or web-like elevations which merge into the basic body with inclined side surfaces. The molding is produced by pressing and sintering powdery raw materials close to the final shape. First, the boundary surfaces of the basic body are pressed to final shape as far as the transition regions of the elevations and the elevations are pressed to an oversize. The projection height of the elevations from the basic body is greater than the projection height in the finally pressed state. Their side surfaces form an angle of inclination in the range from 90°-150° with the respectively adjacent boundary surface of the basic body. Then the elevations are pressed to near final shape while the angle of inclination is enlarged to a greater value.

Abstract: A porous ceramic honeycomb article includes a primary cordierite phase and an intercrystalline glass phase. In an as-fired condition, the porous ceramic honeycomb article exhibits microcrack parameter Nb3?0.06 and an as-fired E500° C./E25° C. ratio ?0.99. The article exhibits a coated microcrack parameter Nb3?0.14 and a coated E500° C./E25° C. ratio ?1.06 after the porous ceramic honeycomb article has been washcoated and calcined at a temperature of 550° C. After the article is exposed to a thermal treatment at a temperature ?800° C. following washcoating and calcining, at least a first portion of the porous ceramic honeycomb article has a first treated microcrack parameter Nb3?0.18, and a first treated mean coefficient of thermal expansion of not more than 12×10?7/° C. over a temperature range of 25° C. to 800° C. Methods of forming the porous ceramic honeycomb article are also disclosed.

Abstract: A method for producing ferrite ceramic includes the steps of providing a ferrite powder; oven-drying the ferrite powder; adding organic additives into the oven-dried powder and mixing them to form a ferrite slurry; debubbling the ferrite slurry and then tape casting it into a green tape; heating the green tape in air to 300-500° C. for 5 h to remove the organic additives from the green tape; sintering the organic additives removed green tape at 900-1000° C. for 2-5 h to obtain ferrite ceramic.

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 methylhydroxypropyl cellulose having a DS(methyl) of from 0.8 to 2.5 and an MS(hydroxypropyl) of from 0.50 to 1.20 is useful for producing extrusion-molded bodies for use as a carrier for a catalyst, a catalyst, a heat exchanger, or a filter.

Abstract: A SiC ceramic material includes a bundle of SiC continuous fibers in a porous SiC ceramic matrix, has thermal insulation properties, a high level of strength and a high degree of toughness. A SiC ceramic structure is made of the SiC ceramic material. It is produced by preparing a pressure-sintered compact using a slurry prepared by mixing SiC powder and carbon powder in a liquid and by gasifying and releasing the carbon powder. The SiC ceramic structure can be produced by heating a reaction preparation containing a bundle of SiC continuous fibers and Si powder to a temperature equal to or higher than the melting point of silicon causing a reaction of the carbon component and Si powder and thereby obtaining a reaction-sintered compact, and by gasifying and releasing the carbon component from the reaction-sintered compact. The SiC ceramic can be produced by a chemical vapor deposition method.

Abstract: A mould-supporting system for a machine for forming hollow glassware includes a supporting structure, and a first carriage and a second carriage, which are slidably mounted, respectively, on a first bar and a second bar of the supporting structure, and, moreover, are slidably mounted on a third bar of the supporting structure, common to the two carriages, the first and second carriages carrying, respectively, a first mould-carrier arm and a second mould-carrier arm. Mutual displacement of the first and second carriages is controlled between a position where they are set close to one another and a corresponding position where they are set apart. The first and second carriages have a first tubular portion that engages, respectively, the first and second bars via first sliding means, and a second tubular portion that engages the third bar via second sliding means. The second sliding means enable adjustment of the position of the second tubular portion in a direction transverse to the third bar.

Abstract: Processes for manufacturing porous ceramic honeycomb articles are disclosed. The processes include mixing a batch of inorganic components with processing aids to form a plasticized batch. The batch of inorganic components include talc having dpt50?10 ?m, a silica-forming source having dps50?20 ?m, an alumina-forming source having a median particle diameter dpa50 of less than or equal to 10.0 ?m, and a pore former having dpp50?20 ?m. The plasticized batch is formed into a green honeycomb article and fired under conditions effective to form a porous ceramic honeycomb article comprising a cordierite crystal phase and having a microcrack parameter (Nb3) of from about 0.05 to about 0.25. After firing, the green honeycomb article the porous ceramic honeycomb article is exposed to a microcracking condition, which increases the microcrack parameter (Nb3) by at least 20%.

Abstract: A method for processing a glass sheet includes a scribing step of heating a part of a glass sheet with laser light which is transmitted through the glass sheet from a first main surface of the glass sheet to a second main surface of the glass sheet, and moving an irradiation position of the laser light on the glass sheet, thereby forming a scribe line on at least the second main surface of the glass sheet.

Abstract: Methods of forming three-dimensional metallic objects are provided. A metal oxide paste comprising metal oxide particles, a polymeric binder and an organic solvent is extruded through a tip to deposit sequential layers of the metal oxide paste on a substrate to form a three-dimensional metal oxide object. The three-dimensional metal oxide object is exposed to a reducing gas at a temperature and for a period of time sufficient to reduce and to sinter the metal oxide particles to form a three-dimensional metallic object. Depending upon the composition of the metal oxide paste, the three-dimensional metallic object may be composed of a single metal, a simple or complex metal-metal alloy, or a metal-ceramic composite.