Abstract: The current invention involves periodically ordered nanostructured materials and methods of using and modifying the materials. In some embodiments, the invention provides periodically structured microphase separated polymeric articles that include periodically occurring separate domains. The polymeric species comprising one or more of the domains, for some embodiments, contains an inorganic species capable of forming an inorganic oxide ceramic. In another aspect, the invention provides methods for modifying the polymeric articles by oxidation and/or radiation to form periodically structured porous and relief articles that, in some embodiments, include a ceramic oxide in their structure. The invention also provides methods of use for the novel articles and novel structures constructed utilizing the articles.

Abstract: A flexible seal for use in a solid oxide fuel cell stack is formed from a fiber matrix with a plurality of solid particles through tape casting method. The fibers and particles are preferably ceramic and may be formed from alumina or zirconia. The seal may be formed by forming a slurry of fibers, particles, a binder and a non-aqueous solvent, tape casting the slurry, drying the tape seal, die-cutting, prior to installation in the fuel cell stack.

Abstract: A transparent porous SiO2-coating for a transparent substrate material has improved optical properties. These properties can be obtained, in particular, by plasma treatment.

Abstract: A method of firing a green structure to produce a ceramic structure may comprise heating a firing environment during a first stage of firing of a green structure over a first timed temperature cycle having an average ramp rate sufficient to substantially complete burnout of organic material prior to initiation of clay dehydration proximate a core of the ceramic structure. The method may further comprise heating the firing environment during a second stage of the firing over a second timed temperature cycle having an average ramp rate that is faster than the average ramp rate of the first timed temperature cycle.

Abstract: Provided are a silicon carbide-based porous article comprising silicon carbide particles as an aggregate, metallic silicon and an aggregate derived from organometallic compound particles to form pores through volume shrinkage due to decomposition/conversion by heat treatment; and a method for producing the silicon carbide-based porous article, comprising, adding organometallic compound particles to form pores through volume shrinkage due to decomposition/conversion by heat treatment to a raw-material mixture containing silicon carbide particles and metallic silicon, then forming into an intended shape, calcinating and/or firing the resultant green body, forming pores through volume shrinkage due to decomposition/conversion of the organometallic compound particles, and the decomposed/converted substance of the organometallic compound particles being present as an aggregate in the porous article.

Abstract: The present invention relates to yarns, fibres or filaments made of thermoplastics and to their manufacture. It relates more particularly to yarns, fibres or filaments exhibiting good fire resistance properties and to processes for the manufacture of these articles. These yarns or fibres made of polymer are obtained by spinning a polymer comprising an additive possessing flame-retardant properties composed of at least particles of a solid substrate on which a flame-retardant compound is adsorbed.

Abstract: A conductive porous material includes a matrix having a sintered compact of an oxide, a communicating opening formed in the matrix, having a small diameter and being permeable to gas and impermeable to substance other than gas, and a conductive layer provided on an internal wall of the communicating opening and receiving a current to generate heat. As conductive material is used, an organic substance adheres on the internal wall of communicating opening. To address this, conductive layer is caused to generate heat to decompose and thus remove the organic substance and thus prevent the communicating opening from clogging.

Abstract: A crystalline substrate 1 having straight or spiral deep pores is obtained in cost effective manner. A method for forming pores comprises the steps of preparing the monocrystalline substrate 1 of which (100) surface is processed to be perpendicular to the depth direction of pores to be formed, and an etchant containing 10.0% by weight or less hydrofluoric acid; and chemically etching the substrate surface with metallic particles 2 such as silver, platinum and palladium electroless-plated on it.

Abstract: The inorganic fiber article according to the present invention is an inorganic fiber article comprising an inorganic coating layer having foams, the inorganic coating layer formed on at least a portion of the surface of an inorganic fiber molded body.

Abstract: In a method of making subsurface marks in glass, a beam of radiation is applied to the glass, the radiation having a wavelength that is ?400 nm. The beam is applied using marking parameters of a marking device (e.g., a laser) effective to change a density and a resulting index of refraction of the glass to form subsurface marks having a size not greater than 50 ?m without forming microcracks in the glass and without marking the surface of the glass. Another aspect is the glass having the subsurface marks disposed in a range of 20 to 200 microns below an outer surface of the glass.

Abstract: The present invention relates to (1) a mesoporous silica film having a mesoporous structure including meso pores having an average pore period of from 1.5 to 6 nm, wherein the meso pores are oriented in the direction of an angle of from 75 to 90° relative to a surface of the film; (2) a structure including a substrate and the mesoporous silica film formed on the substrate; and (3) a process for producing a mesoporous silica film structure which includes the steps of preparing an aqueous solution containing a specific amount of a specific cationic surfactant; immersing a substrate in the aqueous solution and then adding a specific amount of a silica source capable of forming a silanol compound when hydrolyzed, to the aqueous solution, followed by stirring the resulting mixture at a temperature of from 10 to 100° C., to form a mesoporous silica film on a surface of the substrate; and removing the cationic surfactant from the resulting mesoporous silica film structure.

Abstract: The present invention relates to an all-ceramic dental prosthesis in which a porous ceramic matrix material is infiltrated with a glass, having a solubility of <1100 ?g/cm2 according to DIN EN ISO 6872. The invention also relates to the use of niobium-containing glass having an Nb2O5 content of more than 0.1% by weight as an infiltration glass for all-ceramic dental compositions.

Abstract: The invention relates to porous bioglass and to the preparation method thereof. More specifically, the invention relates to a solid, porous crystalline or partially-crystalline composition containing at least SiO2, Ca<SB>O</SB>, Na2O, and P2O5, comprising micropores and macropores. The invention is characterised in that: the pore ratio varies between 50% and 80%, preferably between 60 and 75%, and is measured using the geometric method; the average diameter of the macropores varies between 100 and 1250 micrometers, preferably between 150 and 300 micrometers; the average diameter of the micropores is less than or equal to 5 micrometers; and the compression strength varies between 7 MPa and 70 MPa. The invention also relates to the method of preparing one such composition and to such a composition treated with a physiological liquid having an ionic composition similar to that of human plasma. The invention also relates to an implant which is made from one such composition.

Abstract: The present invention relates to a substrate (1) coated with a porous coating (2), to the processes for manufacturing the coating, and to its applications. The porous coating (2) is essentially mineral and of the sol-gel type, having a series of closed pores with at least the smallest characteristic dimension being, on average, equal to or greater than 20 nm but less than or equal to 100 nm.

Abstract: A tool for use in forming moulded articles, the tool comprising a tool body formed of a foamed material, a resinous material on the tool body and elastomeric material between said tool body and resinous material to inhibit the movement of resin from the resinous material into the tool body. The invention also provides a method of manufacturing a tool, a method of moulding articles using such a tool, and elastomeric material for use in forming a tool. One particular application of the tools of the present invention is in the formation or manufacture of moulded articles using curable, resinous composite materials.

Abstract: In one embodiment, a method of producing an optoelectronic nanostructure includes preparing a substrate; providing a quantum well layer on the substrate; etching a volume of the substrate to produce a photonic crystal. The quantum dots are produced at multiple intersections of the quantum well layer within the photonic crystal. Multiple quantum well layers may also be provided so as to form multiple vertically aligned quantum dots. In another embodiment, an optoelectronic nanostructure includes a photonic crystal having a plurality of voids and interconnecting veins; a plurality of quantum dots arranged between the plurality of voids, wherein an electrical connection is provided to one or more of the plurality of quantum dots through an associated interconnecting vein.

Abstract: The invention relates to a shielding component, in particular a heat shield, composed of a two-layer arrangement with an insulating layer (14) and a covering layer (10), wherein the insulating layer (14) is formed from a cellular structure which, designed as an inherently stable but deformable sheet structure, is engaged over at least partially at the edge side by the covering layer (10) which extends, substantially with contact over the entire surface, along one of the sides of the insulating layer (14).

Abstract: An embodiment of the present invention describes aerogel materials comprising an additive comprising a compound comprising at least two different metal elements. Another embodiment, involves aerogel particulates in combination with said compound. Said compound preferably comprises at least two different transition metal elements and may be in an oxide form.

Abstract: The prevent invention discloses a structure of thermal resistive layer and the method of forming the same. The thermal resistive structures, formed on a plastic substrate, comprises a porous layer, formed on said plastic substrate, including a plurality of oxides of hollow structure, and a buffer layer, formed on said porous layer, wherein said porous layer can protect said plastic substrate from damage caused by the heat generated during manufacturing process. With the structure and method disclosed above, making a thin film transistor and forming electronic devices on the plastic substrate in the technology of Low Temperature PolySilicon, i.e. LTPS, without changing any parameters is easy to carry out.

Abstract: In a formation method for forming a fine structure in a workpiece (30) containing an etching control component, using an isotropic etching process, a mask (32, 34) having an opening (36) is applied to the workpiece, and the workpiece is etched with an etching solution (38) to thereby form a recess (40), corresponding to a shape of the opening, in a surface of the workpiece. The etching of the workpiece is stopped due to the etching control component eluted out of the workpiece in the etching solution within the recess during the isotropic etching process.

Abstract: The invention relates to a composite or a composite membrane consisting of an ionomer and of an inorganic optionally functionalized phyllosilicate. The isomer can be: (a) a cation exchange polymer; (b) an anion exchange polymer; (c) a polymer containing both anion exchanger groupings as well as cation exchanger groupings on the polymer chain; or (d) a blend consisting of (a) and (b), whereby the mixture ratio can range from 100% (a) to 100% (b). The blend can be ionically and even covalently cross-linked. The inorganic constituents can be selected from the group consisting of phyllosilicates or tectosilicates.

Abstract: A super lightweight ceramic panel for a non-bearing wall utilizing an expandable clay mineral and a process for preparing the same are provided. The super lightweight ceramic panel is comprised of a clay composition containing 90 to 98% by weight of an expandable clay mineral, 1.5 to 5% by weight of a flux (glass), and 0.5 to 5% by weight of silicon carbide, and is prepared by mixing and pressing the clay composition, followed by firing at a temperature of 1100 to 1200° C. The super lightweight ceramic panel in accordance with the present invention is a material having a light weight and exhibiting improvement in physical properties such as water resistance, flame retardancy, heat insulation and rigidity, via formation of closed pores inside the ceramic material.

Abstract: A composite article includes a substrate, a ceramic member on the substrate and a ceramic bond coat for securing the substrate and the ceramic member together. A method of securing the ceramic member and the substrate together includes pyrolyzing a ceramic precursor, such as a ceramic powder, between the substrate and the ceramic member to form the ceramic bond coat.

Abstract: The present invention relates to inorganic monolithic mouldings whose surface is coated with physi- or chemisorbed organic polymers, and to processes for the production of materials of this type. The materials according to the invention are highly suitable as sorbents for chromatography, in particular for high pressure liquid chromatography of biological materials.

Abstract: A microchannel glass article includes a glass body having a porous, spinodal nanostructure and defining at least one microchannel extending from a surface of the article substantially through the article.

Abstract: Nanoporous sol-gel derived monoliths and methods for making nanoporous sol-gel derived monoliths are provided. The methods enable fine control over pore size and pore size distribution, e.g., so that pore sizes can be predetermined and precisely tuned over a range from 0.3 nm to about 30 nm, or over a range from about 0.3 nm to about 10 nm. The monoliths may be derived from any suitable sol-gel, but in some instances they are derived from silica sol-gels. The sol-gel derived monoliths with finely tunable pore sizes and narrow pore size distributions may be used for a variety of applications, e.g., as substrates or templates for high surface area electrodes, as substrates for high surface area sensor, or as a component in a filtration apparatus.

Abstract: A mesostructured film is provided having a structure in which surfactant molecular assemblies are regularly arranged three-dimensionally. A polymer compound thin film is formed on the substrate surface through spin coating or the like, and a rotating roller wrapped with a cloth is pressed against the polymer film for rubbing in one direction. The polymer material includes polyimide, polyamide, and polystyrene. The substrate includes a silica glass substrate and a silicon substrate. The mesostructured film can be formed by retaining the substrate in an aqueous solution containing a surfactant, silicon alkoxide, and acid. After being retained in the solution, the substrate is heated at about 60 to 120° C. for several hours to several days for reaction. The surfactant includes C18H37(OCH2CH2)20OH and C16H33 (OCH2CH2)20OH. The alkoxide included tetraethoxysilane, tetramethoxysilane, and tetrapropoxysilane. Hydrochloric acid, nitric acid, or sulfuric acid is used as a catalyst.

Abstract: Process for producing at least one nanoporous layer of nanoparticles chosen from nanoparticles of a metal oxide, nanoparticles of metal oxides, and mixtures of said nanoparticles, on a surface of a substrate, in which at least one colloidal sol, in which said nanoparticles are dispersed and stabilized, is injected into a thermal plasma jet which sprays said nanoparticles onto said surface. Nanoporous layer and device, especially a separation device, comprizing said layer.

Abstract: For a substrate having fine convexoconcave patterns on its surface, the dimensions of the convexoconcave patterns in a vertical direction of a quartz glass substrate are controlled to be uniform with extreme accuracy and over the entire substrate surface. The quartz glass substrate is made to have a fictive temperature distribution of at most 40° C. and a halogen concentration of less than 400 ppm, and the etching rate of the surface of the quartz glass substrate is made uniform, whereby the dimensions of the convexoconcave patterns in a vertical direction of the quartz glass substrate are controlled to be uniform with good accuracy and over the entire substrate surface.

Abstract: A coated glass product includes a glass substrate and a porous antireflection surface coating including SiO2-based particles having a first particle fraction including a first characteristic particle size range and a second particle fraction having a second characteristic particle size range that is different from the first characteristic particle size range. In addition, a method for producing the coated glass product is provided.

Abstract: Ceramic layers are often used for heat insulation in a layer system, and have a high porosity therefore, The inventive porous ceramic heat insulating layer has a particular pore size distribution such that it has a high expansion tolerance event at temperatures higher than 1200° C.

Abstract: A mesoporous silica thick-film comprising a layer of mesoporous silica formed in a thickness of 10 ?m to 1 mm, and a process for producing a mesoporous silica thick-film, which comprises disposing a substrate in a solution containing mesoporous silica suspended therein and subsequently applying a voltage thereby to form a film having a thickness of 10 ?m to 1 mm by the electrophoretic deposition of the mesoporous silica on a surface of the substrate is provided.

Abstract: Disclosed are an optical film having a graded refractive index and a method of manufacturing the same. The optical film includes one or more antireflection films composed of a mesoporous material having a plurality of pores of a uniform size, and the pores of the mesoporous material are filled with air or a filler having a refractive index different from that of the mesoporous material, and thus the volume ratio of mesoporous material to filler in the pores thereof is controlled, thereby obtaining a desired magnitude of effective refractive index and ensuring a refractive index distribution in which the refractive indexes sequentially change, resulting in high antireflection performance. The method of manufacturing the optical film may be conducted using a nanowire growing technique, thus making it easy to realize mass production.

Abstract: A superabrasive fracture resistant compact is formed by depositing successive layers of ceramic throughout the network of open pores in a thermally stable self-bonded polycrystalline diamond or cubic boron nitride preform. The void volume in the preform is from approximately 2 to 10 percent of the volume of the preform, and the average pore size is below approximately 3000 nanometers. The preform is evacuated and infiltrated under at least about 1500 pounds per square inch pressure with a liquid pre-ceramic polymerizable precursor. The precursor is infiltrated into the preform at or below the boiling point of the precursor. The precursor is polymerized into a solid phase material. The excess is removed from the outside of the preform, and the polymer is pyrolized to form a ceramic. The process is repeated at least once more so as to achieve upwards of 90 percent filling of the original void volume.

Abstract: A silicon carbide porous object includes silicon carbide as an aggregate and metal silicon as a binder, the particles of silicon carbide being bonded to one another so as to have pores thereamong. A method for producing a silicon carbide porous object includes: firing raw materials formed by mixing silicon carbide and metal silicon with metal aluminum or an alloy including metal silicon and metal aluminum in an inert gas atmosphere or a reduced-pressure atmosphere to produce a metal aluminum-metal silicon-silicon carbide porous object; and oxidizing and firing the metal aluminum-metal silicon-silicon carbide porous object in an oxygen atmosphere.

Abstract: Improved foam glass products prepared from natural glasses, such as unexpanded fine perlite ore and expanded fine perlite, methods of producing the improved foam glass products, and methods of use thereof are provided. The improved foam glass product made from natural glasses has, for example, a thermal conductivity less than 0.70 Btu·in/hr·F·ft2 (0.101 W/m° K) at 73° F.(296° K), a compressive strength greater than 100 PSI (689 kPa) and a density less than 20 lb/ft3 (320 kg/m3). The improved foam glass product made from natural glasses may be used in a variety of applications including thermal and acoustic insulation applications.

Abstract: The invention is directed to a composite ceramic/polymer membrane. The invention is further directed to the use of a composite membrane in pervaporation processes. According to the present invention there is provided a composite membrane comprising a support and a separation layer that comprises a rubbery polymer, wherein an intermediate layer is present between the separation layer and the support.

Abstract: A method for producing a ceramic substrate material having a first layer and possibly a further layer is specified. The first layer comprises at least one first component made of a crystalline ceramic material and/or a glass material as a matrix and a second component made of a further crystalline ceramic material, which is provided in the matrix. An etching step is performed, mantle areas of the crystals and/or crystal agglomerates of the second component being etched selectively in the first layer to generate a cavity structure in the first layer. The present invention also relates to a corresponding ceramic substrate material, an antenna or an antenna array, and the use of the ceramic substrate material for an antenna or an antenna array.

Abstract: A ceramic component is provided, including a ceramic body containing silicon carbide, and an oxide layer provided on the ceramic body, the oxide layer being formed by oxidizing the ceramic body in the presence of alumina and boron.

Abstract: A silicon carbide-based porous material characterized by comprising silicon carbide particles as an aggregate, metallic silicon and an oxide phase containing Si, Al and an alkaline earth metal; it is high in porosity and strength and superior in oxidation resistance and thermal shock resistance and, when used as a filter, is very low in risk of having defects such as cuts (which cause leakage of fluid) and the like, as well as in pressure loss.

Abstract: Substrates comprising a photocatalytic layer containing TiO2 are produced using TiO2 particles which may optionally be doped with metallic or non-metallic elements or compounds. The photocatalytic layer exhibits a concentration gradient of the TiO2 particles. An organically modified inorganic hybrid layer may be provided between the substrate and the photocatalytic layer.

Abstract: Disclosed are sorbent compositions that include a silicon dioxide porous support impregnated with a mixture comprising zinc oxide and copper material. The sorbent compositions may be utilized in systems and methods for removing sulfur compounds from gaseous streams.

Abstract: A membrane on a carrier for filtration of liquids includes a carrier and a membrane. Also described is a method for manufacturing a membrane on a carrier as disclosed. Additionally described is the application of a membrane on a carrier as well as to a module including such a membrane. Also described is a method for determining fracture in such a membrane on a carrier.

Abstract: The present invention is related to a porous structure material, which is synthesized by mixing an alkyl siloxane compound or a silicate compound with an organic solvent through a sol-gel process, and modified by modification agents. The present invention is also related to a method for manufacturing porous structure material, which comprises reacting an alkyl siloxane compound or a silicate compound with an organic solvent through sol-gel process. The present invention utilizes modification agents to modify hydrophilic groups into hydrophobic groups on the surface of the porous structure material, thereby to lower the surface tension and maintain the porous structure. The porous structure material of the present invention has properties of low conductive coefficient, high porosity, high hydrophobicity and self-cleaning.

Abstract: A highly porous substrate is provided using an extrusion system. More particularly, the present invention enables the production of a highly porous substrate. Depending on the particular mixture, the present invention enables substrate porosities of about 60% to about 90%, and enables advantages at other porosities, as well. The extrusion system enables the use of a wide variety of fibers and additives, and is adaptable to a wide variety of operating environments and applications. Fibers, which have an aspect ratio greater than 1, are selected according to substrate requirements, and are typically mixed with binders, pore-formers, extrusion aids, and fluid to form a homogeneous extrudable mass. The homogeneous mass is extruded into a green substrate. The more volatile material is preferentially removed from the green substrate, which allows the fibers to form interconnected networks.

Abstract: This invention relates to coatings for a metal or non-metal substrate comprising (i) a thermal sprayed bondcoat layer applied to said substrate comprising an alloy of MCrAlM? wherein M is an element selected from nickel, cobalt, iron and mixtures thereof, and M? is an element selected from yttrium, zirconium, hafnium, ytterbium and mixtures thereof, and wherein M comprises from about 35 to about 80 weight percent of said alloy, Cr comprises from about 15 to about 45 weight percent of said alloy, Al comprises from about 5 to about 30 weight percent of said alloy, and M? comprises from about 0.01 to about 1.0 weight percent of said alloy, said alloy thermally sprayed from a powder having a mean particle size of 50 percentile point in distribution of from about 5 microns to about 100 microns, said bondcoat having a surface roughness of at least 200 micro-inches, and said bondcoat having a thermal expansion of about 6.5 millimeters per meter or less between a temperature of from about 25° C. to about 525° C.

Abstract: The present invention provides a method for depositing nano-porous low dielectric constant films by reacting a mixture comprising an oxidizable silicon component and an oxidizable component having thermally labile groups with an oxidizing gas in gas-phase plasma-enhanced reaction. The deposited silicon oxide based film is annealed to form dispersed microscopic voids that remain in a nano-porous silicon oxide based film having a low-density structure. The nano-porous silicon oxide based films are useful for forming layers between metal lines with or without liner or cap layers. The nano-porous silicon oxide based films may also be used as an intermetal dielectric layer for fabricating dual damascene structures.

Abstract: An antireflective transparent zeolite hardcoat and fabrication method thereof. The transparent zeolite hardcoat comprises a zeolite nanostructure made of zeolite nanocrystals vertically stacked into a porous structure on a substrate, wherein the porosity increases with structure height, thereby providing a smooth refractive index transition.

Abstract: A method for forming a ultralow dielectric constant layer with controlled biaxial stress is described incorporating the steps of forming a layer containing Si, C, O and H by one of PECVD and spin-on coating and curing the film in an environment containing very low concentrations of oxygen and water each less than 10 ppm. A material is also described by using the method with a dielectric constant of not more than 2.8. The invention overcomes the problem of forming films with low biaxial stress less than 46 MPa.

Abstract: This substrate is coated with a composite film based on a mesoporous mineral layer containing nanoparticles formed in situ inside the layer. The composite film has a periodic lattice structure over a major portion of the thickness in which the nanoparticles are present, in which structure the nanoparticles are arranged in a periodic manner on the scale of domains of at least 4 periods in the thickness of the film. This structure can be obtained from a mesoporous mineral layer of periodic structure on the scale of domains of at least 4 periods of pores, forming a matrix on the substrate, by: depositing at least one precursor in the pores of the matrix layer; and growing particles derived from the precursor with the spatial distribution and the dimensions being controlled by the structure of the pores of the matrix. Applications to materials for electronics, nonlinear optics and magnetism.