Abstract: The present disclosure relates to a composite material comprising a ceramic component having a negative coefficient of thermal expansion, and oxidic ceramic particles, to its obtainment process and to its uses in microelectronics, precision optics, aeronautics and aerospace.

Abstract: A ceramic article comprises ceramic fibers having an aspect ratio of greater than 3:1 and ceramic particles. The ceramic fibers are substantially randomly oriented in three dimensions in the ceramic article. A method of forming the ceramic article includes the step of providing a composition including ceramic fibers having an aspect ratio of greater than 3:1 and ceramic particles. The composition is extruded through a multi-screw extruder having at least three intermeshing screws to form an extrudate. The extrudate is heated to form the ceramic article.

Abstract: A porous ceramic body including a major phase of beta-spodumene and a minor phase of mullite, the aggregate composition of a batch in weight percents of LiAlSi2O6, SiO2, and Al6Si2O13 are as defined herein. Also disclosed is a method for making a porous ceramic article is and includes: mixing inorganic batch ingredients including sources of silica, alumina, and lithia, with a liquid and an organic binder to form a plasticized batch mixture; forming a green body; and heating to the porous ceramic article, comprised of a major phase of beta-spodumene and a minor phase of mullite.

Abstract: A synthetic quartz composition having improved tensile strength, compression strength and bending strength comprising up to 90% quartz stone, from 5 to 90% quartz powder, from 0.1 to 20% resin, from 1 to 25% fiber, from 0.1 to 5% coupling agent, from 0.1 to 5% curing agent, up to 70% glass chip, up to 70% mirror chip, up to 5% pigment, up to 5% shell chip, and up to 5% metal flake, by weight, may be produced in panels and molded shapes such as containers.

Abstract: Disclosed is a glass composition having a stable quality, which can be easily obtained. This glass composition can be used as a glass filler to be blended into a polycarbonate resin, and enables to reduce the load imposed on a glass manufacturing apparatus. Specifically, this glass composition contains, in mass %, 50?SiO2?60, 8?Al2O3?15, 0?MgO?10, 5?CaO<21, 0<SrO+BaO?25, 10<MgO+SrO+BaO?30, 0?Li2O+Na2O+K2O<2, 2<TiO2?10 and 0?ZrO2<2 and does not substantially contain B2O3, F, and ZnO.

Abstract: A coated article includes a substrate and a Si—B—C—N ceramic coating deposited on the substrate by magnetron sputtering process. The Si—B—C—N ceramic coating is an amorphous coating, the weight of elemental Si in the coating is between about 30 wt % and about 60 wt % of the total weight of Si, B, C and N, the weight of elemental B in the coating is between about 10 wt % and about 20 wt % of the total weight of Si, B, C and N, the weight of elemental C in the coating is between about 10 wt % and about 20 wt % of the total weight of Si, B, C and N, the weight of elemental N in the coating is between about 20 wt % and about 30 wt % of the total weight of Si, B, C and N.

Abstract: The present invention relates to specific additives comprising cellulose ether for improving the extrudability of ceramic masses and other masses which set as a result of baking or sintering, a corresponding extrusion process, the extrudates and their use.

Abstract: A sintered ceramic particle made from a ceramic material having a true density greater than 3.5 g/cc and a composition having no more than 30 weight percent silicon oxide and at least 15 weight percent iron oxide, based on the combined weight of the oxides of aluminum, iron and silicon, is disclosed. A process that utilizes an externally applied compressive force to make a ceramic particle is also disclosed.

Abstract: The present invention relates to composite materials with a high dielectric constant and high dielectric strength and to methods of producing the composite materials. The composite materials have high dielectric constants at a range of high frequencies and possess robust mechanical properties and strengths, such that they may be machined to a variety of configurations. The composite materials also have high dielectric strengths for operation in high power and high energy density systems. In one embodiment, the composite material is composed of a trimodal distribution of ceramic particles, including barium titanate, barium strontium titanate (BST), or combinations thereof and a polymer binder.

Abstract: Presently described are methods of inhibiting water vapor adsorption of a powder and methods of storing a powder at increased humidity level. The methods comprise providing adding discrete hydrophobic nanoparticles to a plurality of particles.

Abstract: Castable silicon-based compositions have enhanced toughness and related properties compared to silicon. The con-based compositions comprise silicon at a concentration greater than 50% by weight and one or more additional elements in structure comprising a cubic silicon phase and an additional phase which may impart toughness through mechanisms related to plastic flow or crack interaction with interfacial boundaries.

Abstract: A porous ceramic (honeycomb) structure skin coating and a method of producing a porous ceramic structure skin coating which provides a hardshell, strong, acid- and alkali-resistant, chip-resistant ceramic honeycomb structure coating which resists pollution control catalyst from being absorbed into the skin coating.

Abstract: A sintered calcium sulfate ceramic material includes a plurality of major phases of calcium sulfate solid solutions, and a plurality of reaction phases located at boundaries of the major phases. Each of the reaction phases may be selected from the group consisting of calcium silicate and calcium phosphate. A sinterable calcium sulfate ceramic material consisting of calcium sulfate and a sintering additive is also provided. The sintering additive comprises silica (SiO2).

Abstract: An article including a monolithic crucible body comprising silicon oxynitride (SixNyO, wherein x>0 and y>0), wherein the silicon oxynitride extends throughout the entire volume of the monolithic crucible body.

Abstract: The present invention relates to a container packing structure, characterized in that it comprises a crystalline phase containing 55 to 97% by weight of xonotlite crystallites and 3 to 45% by weight of tobermorite crystallites. It also relates to a method for fabricating such a packing structure, and the container containing same, and its use for storing fluids such as gases.

Abstract: A semiconductor device 1 includes: a base 2 mainly formed of a semiconductor material; a gate electrode 5; and a gate insulating film 3 provided between the base 2 and the gate electrode 5. The gate insulating film 3 is formed of an insulative inorganic material containing silicon, oxygen and element X other than silicon and oxygen as a main material. The gate insulating film 3 is provided in contact with the base 2, and contains hydrogen atoms. The gate insulating film 3 has a region where A and B satisfy the relation: B/A is 10 or less in the case where the total concentration of the element X in the region is defined as A and the total concentration of hydrogen in the region is defined as B. Further, the region is at least apart of the gate insulating film 3 in the thickness direction thereof.

Abstract: A method for the production of a ceramic substrate for a semiconductor component, includes the steps of producing paper containing at least cellulose fibers, as well as a filler to be carbonized and/or SiC, pyrolizing the produced paper, and siliconizing the pyrolyzed paper.

Abstract: The present invention relates to a luminescent glass element comprising a luminescent glass substrate, which a metal layer is positioned on a surface thereof. The metal layer is provided with a metal microstructure. The luminescent glass substrate has composite oxides represented as the following formula: aM2O.bY2O3.cSiO2.dPr2O3, wherein M represents alkali metal element, a, b, c and d are, by mol part, 25-60, 1-30, 20-70 and 0.001-10 respectively. The present invention also provides a producing method of the luminescent glass element and a luminescing method thereof. The metal layer is positioned on the luminescent glass substrate, thereby improving luminescence efficiency of the luminescent glass substrate. The luminescent glass element can be used in luminescent devices with ultrahigh brightness or high-speed operation.

Abstract: The invention provides a method for producing ceramic nanoparticles, which comprises hydrolyzing a ceramic material in a thin film fluid formed between processing surfaces arranged to be opposite to each other so as to be able to approach to and separate from each other, at least one of which rotates relative to the other.

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

Abstract: Circuit modules and methods of construction thereof that contain composite meta-material dielectric bodies that have high effective values of real permittivity but which minimize reflective losses, through the use of host dielectric (organic or ceramic), materials having relative permittivities substantially less than ceramic dielectric inclusions embedded therein. The composite meta-material bodies permit reductions in physical lengths of electrically conducting elements such as antenna element(s) without adversely impacting radiation efficiency. The meta-material structure may additionally provide frequency band filtering functions that would normally be provided by other components typically found in an RF front-end.

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 ceramic substrate according to one aspect of the invention comprises a main surface wherein a diameter of a first imaginary circle inscribed in a circumference of the main surface is represented by C (m), a thickness of the ceramic substrate is represented by h (m), a Poisson ratio of the ceramic substrate is represented by ?, a density of the ceramic substrate is represented by ?(kg/m3), a Young's modulus of the ceramic substrate is represented by E(Pa), a deflection of the ceramic substrate is represented by X (m), the deflection being measured in a condition that the ceramic substrate is supported in a region between the first imaginary circle and a second imaginary circle which is a concentric circle of the first imaginary circle and has a diameter of C-0.01 (m), wherein X?1.5×(C4/h2)×A and A={3×9.807×?×(1??2)×(5+?)}/{28×(1+?)×E} are satisfied.

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 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: 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: 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: 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: 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: Method for making a ceramic matrix material for brake friction components, in particular disc brakes, including the following operational phases: a) prepare a mixture of at least one siliconic type ceramic precursor, particles of hard materials suitable as abrasives, particles of substances suitable as lubricants and particles of metal materials; b) hot-press the mixture to obtain a green body; c) submit the green body to a process of pyrolysis in order to achieve ceramisation of the preceramic binder, thus obtaining a ceramic matrix material. The mixture includes a catalyst suitable for favoring reticulation of the ceramic precursor during the hot-pressing phase and the pyrolysis process is carried out at temperatures below 800° C., more precisely between 400° C. and 600° C.

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: 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: 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: 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: 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: The invention relates to a new process for colouring ceramic materials by using aqueous solutions of chromophore ions. In particular, certain types of silica are added to the ceramic mixes which are to be coloured, after which aqueous or organic solutions comprising inorganic salts of Fe(II) and/or Fe (III), or organic derivatives of Fe (II) and/or Fe (III) are applied to the surface of the said additive-containing ceramic mixes.

Abstract: The invention relates to a method for producing a packing structure, characterized in that it includes the following steps: a) a step in which the temperature of an initial mixture of quicklime and silica is raised to a temperature T1 of between 150 and 300° C. over a period of less than 10 hours; b) a step in which hydrothermal synthesis is performed using the mixture of quicklime and silica produced in step (a) at a temperature T1 of between 150 and 300° C. and at a pressure P1 of between 5×105 Pa and 25×105 Pa over a period t1 of between 10 and 70 hours; c) a step in which the mixture produced in step (b) is cooled from temperature T1 to ambient temperature over a period of between 1 and 48 hours at a cooling rate ?TR1 of between 3 and 200° C./hour; and d) a step in which the mixture produced in step (c) is dried.

Abstract: Pressureless sintering of silicon carbide with fracture toughness in excess of about 4 MPa-m1/2 as measured by the single-edge precracked beam (SEPB) technique while maintaining a density greater than 3.1 g/cc for compositions with SiC greater than about 94 wt. % is made possible through the use of metallic Al to promote sintering and grain growth. Boron and carbon may be used as traditional sintering aids, with nitrogen to suppress grain growth, and additions of yttrium and/or lanthanide elements to promote intergranular fracture.

Abstract: A honeycomb structure including a plurality of cells arranged in parallel while being separated by cell walls, and extending in a longitudinal direction of the honeycomb structure. Each cell is sealed at one of end portions thereof. In the honeycomb structure, the relation expressed by an expression (1) is satisfied: 11/6?10/3×A?B??(1) where A (mm) designates thickness of the cell walls, and B (m2/cm3) designates a surface area per unit volume of the cell walls.

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: A photosensitive paste composition for forming barrier ribs of a plasma display panel (PDP). The photosensitive paste composition includes an inorganic material including SiO2 and at least one of B2O3 and P2O5, and an organic material containing photosensitive components, wherein the total content of SiO2 and B2O3 is about 50 wt % to about 80 wt % with respect to 100 wt % of the inorganic material, or a content of SiO2 and P2O5 is about 50 wt % to about 80 wt % with respect to 100 wt % of the inorganic material.

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 transparent, polycrystalline ceramic is described. The ceramic comprises crystallites of the formula AxCuByDvEzFw, whereby A and C are selected from the group consisting of Li+, Na+, Be2+, Mg2+, Ca2+, Sr2+, Ba2+, Al3+, Ga3+, In3+, C4+, Si4+, Ge4+, Sn2+/4+, Sc3+, Ti4+, Zn2+, Zr4+, Mo6+, Ru4+, Pd2+, Ag2+, Cd2+, Hf4+W4+/6+, Re4+, Os4+, Ir4+,, Pt2+/4+, Hg2+ and mixtures thereof, B and D are selected from the group consisting of Li+, Na+, K+, Mg2+, Al3+, Ga3+, In3+, Si4+, Ge4+, Sn4+, Sc3+, Ti4+, Zn2+, Y3+, Zr4+, Nb3+, Ru3+, Rh3+, La3+, Lu3+, Gd3+ and mixtures thereof, E and F are selected mainly from the group consisting of the divalent anions of S, Se and O and mixtures thereof, x, u, y, v, z and w satisfy the following formulae 0.125<(x+u)/(y+v)?0.55 z+w=4 and at least 95% by weight of the crystallites display symmetric, cubic crystal structures of the spinel type, with the proviso that when A=C=Mg2+ and B=D=Al3+, E and F cannot both be O.

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.

Abstract: In various embodiments, composite materials containing a ceramic matrix and a carbon nanotube-infused fiber material are described herein. Illustrative ceramic matrices include, for example, binary, ternary and quaternary metal or non-metal borides, oxides, nitrides and carbides. The ceramic matrix can also be a cement. The fiber materials can be continuous or chopped fibers and include, for example, glass fibers, carbon fibers, metal fibers, ceramic fibers, organic fibers, silicon carbide fibers, boron carbide fibers, silicon nitride fibers and aluminum oxide fibers. The composite materials can further include a passivation layer overcoating at least the carbon nanotube-infused fiber material and, optionally, the plurality of carbon nanotubes. The fiber material can be distributed uniformly, non-uniformly or in a gradient manner in the ceramic matrix. Non-uniform distributions may be used to form impart different mechanical, electrical or thermal properties to different regions of the ceramic matrix.

Abstract: The present invention relates to a biocompatible ceramic material comprising Sr, Mg or Ba doped Hardystonite (Ca2ZnSi2O7), and a method for its synthetic preparation. The present invention also relates to an implantable medical device comprising biocompatible doped Hardystonite, and a method for its production. The present invention further relates to a method for improving the long term stability of an implantable medical device and an implantable drug delivery device comprising doped Hardystonite. Further, the present invention relates to the use of comprising biocompatible doped Hardystonite in the regeneration or resurfacing of tissue.

Abstract: The present invention relates to a container packing structure, characterized in that it comprises a crystalline phase containing 55 to 97% by weight of xonotlite crystallites and 3 to 45% by weight of tobermorite crystallites. It also relates to a method for fabricating such a packing structure, and the container containing same, and its use for storing fluids such as gases.