Abstract: A polycrystalline dielectric thin film including a main component made of an oxynitride expressed by a general formula of (M(1)1-xM(2)x)(M(3)1-yM(4)y)(O1-zNz)3. 0?x?1, 0?y?1, and 0<z<? are satisfied. A total sum of nominal valences of M(1), M(2), M(3), and M(4) is 14. A crystal structure of the oxynitride includes an octahedron structure including a center atom, two 4a site atoms, and four 8h site atoms. The center atom is M(3) or M(4). The 4a site atom is O atom or N atom. The 8h site atom is O atom or N atom. An angle ? formed between a straight line connecting two 4a site atoms and a c-axis direction of the crystal structure in the octahedron structure satisfies 0.5°???12°.

Abstract: A dielectric porcelain composition having a main component of a lead-free perovskite type compound at least containing Ba, Ca, Ti, and Sb, and having a Curie temperature Tc of 140° C. or higher.

Abstract: A lightweight micro-closed-pore corundum composite refractory and a method preparing the same, wherein raw materials of the refractory comprise 95-99 parts by weight of ?-Al2O3 micro-powder and 1-5 parts by weight of dolomite clinker; and additives of the refractory comprise 2-15 parts by weight of nano alumina sol, 5-15 parts by weight of a carbohydrate polymer, and 30-50 parts by weight of an organic alcohol. and the lightweight micro-closed-pore corundum composite refractory is prepared by: mixing and wet grinding the raw materials and the additives to obtain a slurry; placing the slurry in a mold, keeping the mold at 15-25° C. for 6-12 hours and then keeping the mold at 60-90° C. for 6-12 hours, then demolding; drying a demolded green body at 110-200° C. for 24-36 hours, and keeping the green body at 1800-2000° C. for 2-5 hours. A method preparing a lightweight micro-closed-pore corundum composite refractory is also provided.

Abstract: Lithium silicate-low quartz glass ceramics are described which are characterized by a combination of very good mechanical and optical properties and can therefore be used in particular as restoration material in dentistry.

Abstract: A functionally graded carbide body (400) can include a group 5 metal carbide substrate having a bulk composition region (410) that contains at least 70 wt % of a rhombohedral ?-phase carbide. A ?-phase-rich region (420) having a ?-phase-rich composition can be at a surface (430) of the substrate, and a phase composition gradient region (440) can transition from the ?-phase-rich composition region at the surface to the bulk composition region at a gradient depth (450) below the surface.

Abstract: A fused grain is essentially composed of a matrix of a magnesium aluminum oxide of MgAl2O4 spinel structure and/or of the MgO—MgAl2O4 eutectic structure, and of inclusions essentially composed of magnesium oxide. The grain has the following overall chemical composition, as percentages by weight, expressed in the form of oxides: more than 5.0% and less than 19.9% of Al2O3, Al2O3 and MgO together represent more than 95.0% of the weight of the grain. The cumulative content of CaO and of ZrO2 is less than 4000 ppm, by weight.

Abstract: A composite material comprising 50 to 95 mass % grains of primary material selected from the group consisting of talc, mica, graphite and hexagonal boron nitride, and 0.01 to 40 mass % fibers having a length of 0.05 to 20 mm, and a ratio of length to diameter of at least 5. The grains of the primary material have a mean size of 3 to 50 microns.

Abstract: A dielectric thin film has a main component including an oxynitride having excellent dielectric property, and a capacitance element includes the dielectric thin film. The dielectric thin film has a main component made of an oxynitride expressed by a compositional formula of AaBbOoNn (a+b+o+n=5), wherein “A” is one or more selected from Sr, Ba, Ca, La, Ce, Pr, Nd, and Na, “B” is one or more selected from Ta, Nb, Ti, and W, and crystalline particles constituting the dielectric thin film are polycrystalline which are not oriented to a particular crystal plane orientation, and further the crystalline particles have columnar shape crystals.

Abstract: Disclosed is a method for fabricating a ceramic material from a preceramic polymer material. The method includes providing a preceramic polymer material that has a preceramic polymer and an electromagnetic radiation-responsive component. The electromagnetic radiation-responsive component is selected from cobalt, titanium, zirconium, hafnium, tantalum, tungsten, rhenium, and combinations thereof. An electromagnetic radiation is applied to the preceramic polymer material. The electromagnetic radiation interacts with the electromagnetic radiation-responsive component to generate heat that converts the preceramic polymer to a ceramic material.

Abstract: The object of the present invention is to provide a dielectric thin film and a capacitance element having excellent dielectric property. A dielectric thin film comprising a main component comprised of an oxynitride expressed by a compositional formula of AaBbOoNn (a+b+o+n=5), wherein said “A” is one or more selected from the group consisting of Sr, Ba, Ca, La, Ce, Pr, Nd, and Na, said “B” is one or more selected from the group consisting of Ta, Nb, Ti, and W, and crystalline particles constituting said dielectric thin film are polycrystalline which are not aligned to a particular crystal plane orientation, and a size of a crystallite of the crystalline particles included in the dielectric thin film is 100 nm or less.

Abstract: A sensitized, photo-structurable glasses and methods for producing are provided. The glasses includes Si4+, one or more crystal-agonist, one or more crystal-antagonist, and one or more pair of nucleating agents. The glasses are sensitized in that the glass reacts more sensitive to irradiation with UV-light and can be crystallized easier and with higher aspect ratios than a non-sensitized glass with equal composition. Furthermore, the sensitized glasses of this invention have smaller crystal sizes after irradiation and tempering than a non-sensitized glass with equal composition. The invention also relates to a structured glass product. Such product can be obtained by submitting the crystallized glass product to a subsequent etching step. The structured product can be used in components or as component for the application fields micro-technology, micro-reaction-technology, electronic packaging, micro-fluidics, FED spacer, bio-technology, interposer, and/or three-dimensional structured antennae.

Abstract: A carbon plate including the following components in weight percentage: 31.5% to 91% of carbon powder, 3% to 25% of resin, 3% to 30% of plant fiber, 0.5% to 2.5% of fire retardant, 0.5% to 3% of dispersing agent, 1% to 3% of zeolite powder, and 1% to 5% of tea stem residue. A manufacturing process for the carbon plate including: mixing raw materials according to a proportion, placing the raw materials into a stirrer, and stirring the raw materials to uniformity; feeding a material obtained; performing heating; maintaining the pressure.

Abstract: Composite ceramic materials are disclosed herein which comprise two or more crystalline phases, wherein a first crystalline phase comprises a first refractory material having a first melting point, and a second crystalline phase comprises a second refractory material having a second melting point which is lower than the first melting point, and the second crystalline phase comprises large domain sizes of the second refractory material. Articles comprising such a composite ceramic material, such as honeycomb bodies, catalytic substrates, and particulate filters, are also disclosed herein, in addition to methods of manufacture thereof.

Abstract: Near-infrared shielding includes a glass material. The shielding provides transmittance at wavelengths between 390 to 700 nm, but near infrared absorbing species are distributed throughout the glass material and the shielding blocks light in the near infrared range. Further, the glass material has a near zero or negative coefficient of thermal expansion, allowing the glass material to heat up when the shielding is blocking a near infrared laser, without expanding much.

Abstract: A refractory formulation containing an anhydrous solvent, an oleophilic rheology modifier and a refractory aggregate exhibits non-thermoplastic behavior, and remains plastic and formable at temperatures in the range of 10 degrees Celsius to 180 degrees Celsius. The oleophilic rheology modifier may effectively bind with the solvent to create a gel-like structure with organic solvents with moderate to high polarity. A phyllosilicate clay that has been treated with a quaternary fatty acid amine may be used as the oleophilic rheology modifier.

Abstract: Lithium silicate-diopside glass ceramics are described which are characterized by a controllable translucence and can be satisfactorily processed mechanically and therefore can be used in particular as restoration material in dentistry.

Abstract: A multilayer ceramic capacitor with improved moisture resistance includes a laminate in which dielectric ceramic layers and internal electrodes are alternately stacked, and a pair of external electrodes provided on corresponding outer portions of the laminate. Each dielectric ceramic layer positioned between the internal electrodes, a first region positioned between the internal electrode and a first side surface in a width direction, and a second region positioned between the internal electrode and a second side surface, contains a perovskite compound containing Ba and Ti, and at least one element selected from a group consisting of Ba, Mg, Mn and a rare-earth element. Relationships S1<Sa and S2<Sa are satisfied, where mole ratios of the at least one element to Ti of the dielectric ceramic layer, the first region, and the second region, are respectively designated as Sa, S1, and S2, respectively.

Abstract: A glass composition including 65 to 72 wt-% SiO2, at least 10.1 wt-% Li2O, at least 10.1 wt-% Al2O3, 0 to 2 wt-% K2O, at most 4 wt-% Na2O, 0 to 1.5 wt-% CaO, 0 to 1.5 wt-% CeO2, 1 to 5 wt-% P2O5, 0 to 0.5 wt-% V2O5, 0 to 1 wt-% Ag, and 0 to 1 wt-% ZrO2, based on a total weight of the composition. The composition is devoid of TiO2, Cu2O, BaO, Sb2O3, Nb2O5, MgO, La2O3, and SnO2. The proportion of Li2O to Al2O3 in the composition is in a range of from 1:1 to 1.5:1.

Abstract: A method of producing, from a continuous or discontinuous (e.g., chopped) carbon fiber, partially to fully converted metal carbide fibers. The method comprises reacting a carbon fiber material with at least one of a metal or metal oxide source material at a temperature greater than a melting temperature of the metal or metal oxide source material (e.g., where practical, at a temperature greater than the vaporization temperature of the metal or metal oxide source material). Additional methods, various forms of carbon fiber, metal carbide fibers, and articles including the metal carbide fibers are also disclosed.

Abstract: A refractory kiln car formed using a refractory composition has excellent resistance to high-temperature thermal shock and creep. The refractory composition is based primarily on chamotte having controlled particle sizes, and may also include mullite, fused silica, calcined alumina and microsilica, having controlled particle sizes. The refractory composition includes an aqueous colloidal silica binder that provides excellent castability and binding between the ingredients following drying.