Abstract: A refractory metal composite article includes a refractory metal ceramic section and a refractory metal ceramic coating disposed directly adjacent to the refractory metal ceramic section. The refractory metal ceramic section and the refractory metal ceramic coating form a composite porous matrix. Each of the refractory metal ceramic section and the refractory metal ceramic coating includes at least one of a refractory metal carbide, a refractory metal silicide, or a refractory metal boride. A solid filler is disposed within pores of the composite porous matrix, and the solid filler is selected from a polymer material, a ceramic material, a metallic material, a glass material, and a glass ceramic material.

Abstract: The invention relates to a bioceramic coated apparatus and method of forming the same. The apparatus may be a medical implant such as, for example, an orthopedic implant or a dental implant. The bioceramic coating is designed to increase tissue and/or bone growth upon implantation of the apparatus. The apparatus has a valve metal substrate having a nanoporous valve metal oxide surface layer. The nanoporous surface layer contains a plurality of nanopores. The nanopores have adsorbed phosphate ions on at least their interior surfaces. A bioceramic coating is formed on the nanoporous surface and anchored into the nanopores. Optionally, the nanopores are formed into a tapered shape in order to increase adhesion to the bioceramic coating.

Abstract: Modified porous materials are disclosed having interconnected, complexly shaped three-dimensional surfaces. The modification is accomplished by crosslinking the three-dimensional surfaces or by incorporating, in situ, an inorganic material onto or into three-dimensional surfaces. The porous materials are macro structures including at least one of nano-features, micro-features, and combinations thereof. The modifying accomplishes changing surface properties of the porous materials, changing the three-dimensional surfaces, and/or rendering the porous materials substantially stable in a predetermined environment.

Abstract: A system for forming a surface coating on an outer surface of a foam for use with cooling system of turbine engines. The system may include removing filler from the outer surface of the foam to expose a porous structure of the foam, whereby portions of the porous structure extend outwardly from a newly formed outer surface of the filler. A surface layer may be applied to the outer surface of the filler and exposed portions of the porous structure, whereby the surface layer is attached to the porous structure at least in part due to mechanical interaction with the portions of the porous structure extending outwardly from the newly formed outer surface of the filler. The filler material may then be removed from the porous structure.

Abstract: A carbon film is coated over the surface of a spacer. The carbon film has the following three features when the binding state of carbon is analyzed by X-ray photoelectron spectroscopy: (a) an integral area of a region of 284.5 eV or below is 27% or less of an integral area attributed to carbon, (b) an integral area of a region of 286.0 eV-287.0 eV is 18% or less thereof, and (c) an integral area of a region of 287.0 eV or above is 9% or more thereof.

Abstract: A PCD composite compact comprising a PCD structure bonded at an interface to a substrate comprising cemented carbide material; the PCD structure comprising a mass of directly inter-bonded diamond grains having a mean size of at most about 4 microns, and the PCD structure comprising at least about 0.05 weight percent refractory metal or carbide of a refractory metal selected from the group comprising W, Ti, V, Cr, Zr, Nb, Mo, Hf and Ta; and at least the cemented carbide material proximate the interface having a content of metallic binder material of at most about 6 weight percent.

Abstract: Diamond bonded construction comprise a diamond body attached to a support. In one embodiment, an initial substrate used to sinter the body is interposed between the body and support, and is thinned to less than 5 times the body thickness, or to less than the body thickness, prior to attachment to the support to relieve stress in the body. In another embodiment, the substrate is removed after sintering, and the body is attached to the support. The support has a material construction different from that of the initial substrate, wherein the initial substrate is selected for infiltration and the support for end use properties. The substrate and support include a hard material with a volume content that may be the same or different. Interfaces between the body, substrate, and/or support may be nonplanar. The body may be thermally stable, and may include a replacement material disposed therein.

Abstract: Systems and methods for fabricating a wash durable material includes forming a substrate having strands with void spaces in the strands and between the strands; filling at least a part of the void spaces with nano-particles; and forming projections on the substrate.

Abstract: A composite material having numerous uses is disclosed. The composite material contains an insulating media combined with a foam. In one embodiment, the foam comprises a polyurethane foam. The polyurethane foam holds the insulating media together and allows for the product to be molded as desired. The resulting composite product can be used as insulation or, alternatively, can be molded into various useful articles.

Abstract: An aluminum/silicon carbide composite prepared by infiltrating a flat silicon carbide porous body with a metal containing aluminum as the main component, including an aluminum alloy layer made of a metal containing aluminum as the main component on both principal planes, and one principal plane is bonded to a circuit plate and the other principal plane is utilized as a radiation plane. The silicon carbide porous body is formed or machined into a convexly bowed shape, and after infiltration with the metal containing aluminum as the main component, the aluminum alloy layer on the radiation plane is further machined to form the bow shape. The aluminum/silicon carbide composite is suitable as a base plate for a ceramic circuit plate on which semiconductor components are mounted, for which high reliability is required.

Abstract: A protective coating for protecting a component of a gas turbine engine or such from wear is provided with a base coating consisting essentially of metal and including a pore, and a spherical particle filling the pore, at least a surface of which consists essentially of a ceramic.

Abstract: A Si—SiC based fired body includes a plurality of silicon carbide (SiC) particles serving as an aggregate, and silicon (Si) which serves as a binder and which is filled into gaps between the above-described silicon carbide particles, wherein the maximum particle diameter of the above-described silicon carbide particles is 0.5 mm or more, the content of silicon is 5 to 40 percent by mass, and the porosity is 0 to 5%. Preferably, the Si—SiC based fired body is in a thick-walled shape having a thickness of 20 to 200 mm.

Abstract: A thermal control coating derived from a sol-gel process includes a plurality of self-assembled mesopores (and/or mesotubes). The plurality of self-assembled mesopores are aligned with respect to a substrate and/or filled with a conductive material. The aligned and/or filled pores are used to provide thermal control for the substrate having a thermal characteristic.

Abstract: The present invention relates to electrical separators, especially for use in lithium high energy batteries, and to a process for making them. Separators for use in lithium high energy batteries have to have a very low weight and a very low thickness. It has been found that, surprisingly, such separators having a weight of less than 50 g/m2 and a thickness of less than 35 ?m are preparable by applying a ceramic coating to a polymeric web less than 30 ?m in thickness, these separators being very useful in lithium high energy batteries when pyrogenic oxides of the elements Al, Si and/or Zr are used as a particulate pore-forming component.

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: Methods and apparatuses for depositing agents relatively deep within pores of bio-char. Bio-char is first produced in an airtight oven by heating biomass feedstock. The bio-char is then cooled and steam is diffused into the pores of the bio-char. The steam-laden bio-char is immersed in a liquid bath containing soluble agents that are to be deposited in the pores of the bio-char. The liquid bath cools the char to below the condensation temperature of the steam, whereupon the condensing steam generates a partial vacuum within the pores, drawing the liquid into the pores. The bio-char is then removed from the liquid bath and dried so that the liquid within the pores evaporates, leaving behind the soluble agent. Accordingly, the invention yields bio-char that has soluble agent embedded relatively deep within its pores.

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 ceramic matrix composite (CMC) material (10) with increased interlaminar strength is obtained without a corresponding debit in other mechanical properties. This is achieved by infusing a diffusion barrier layer (20) into an existing porous matrix CMC to coat the exposed first matrix phase (19) and fibers (12), and then densifying the matrix with repeated infiltration cycles of a second matrix phase (22). The diffusion barrier prevents undesirable sintering between the matrix phases and between the second matrix phase and the fibers during subsequent final firing and use of the resulting component (30) in a high temperature environment.

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: A porous calcium phosphate ceramic body comprising a substrate 1, and three-dimensional nanotunnel layers 2 formed on wall surfaces of the substrate 1, the three-dimensional nanotunnel layers 2 having pluralities of three-dimensionally connected nanotunnels 21.

Abstract: The disclosed invention relates to an article, comprising: a substrate having a surface comprising aluminum or an aluminum alloy; a sealed anodic coating layer overlying at least part of the surface of the substrate; and a layer of a silicon-containing polymer overlying the sealed anodic coating layer. The article may be useful as a brake or wheel component.

Abstract: The invention provides composite porous materials in which a second material is fused to and/or is in the pores and/or is fused directly to some of the pore walls of a porous first material. The invention also provides methods of filtering a fluid using these composite porous materials and methods of manufacturing the composite porous materials.

Abstract: The invention relates to a transparent substrate based on glass or one or more polymers, or a ceramic or glass substrate, or a substrate made of architectural material of the type comprising a wall render, a concrete slab or block, architectural concrete, roof tile, material of cementitious composition, terracotta, slate, stone, metal surface or a fibrous substrate, based on glass of the mineral insulation wool type, or glass reinforcement yarns. This substrate is distinguished in that it is provided, on at least part of its surface, with a coating whose mesoporous structure exhibits photocatalytic properties and comprises at least partially crystallized titanium oxide. Process for manufacturing this substrate, its application in glazing, as architectural material or as mineral insulation wool is also described.

Abstract: To provide a carbon fiber reinforcement having excellent thermal conductivity and mechanical properties which is manufactured by mixing together two different types of pitch-based carbon short fibers having a ratio of the degree of filament diameter distribution to average fiber diameter of 0.05 to 0.2 and a fiber length of 20 to 6,000 ?m which differ from each other in average fiber diameter or by mixing one of them with a pitch-based carbon fiber web to improve dispersibility into a matrix resin or increase the dispersion ratio of the pitch-based carbon short fibers.

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: The present invention relates to a holding material for a catalytic converter including a catalyst carrier, a metal casing for receiving the catalyst carrier, and the holding material wound around the catalyst carrier and interposed in a gap between the catalyst carrier and the metal casing, the holding material including a low thermal conductivity layer, in which the low thermal conductivity layer includes: a molded material containing an inorganic powder; or a composite material of a porous substrate with an aerogel.

Abstract: A porous body includes skeleton particles directly binding with each other and forming inner surfaces and void spaces, each of the skeleton particles being one of a nitride ceramic, a carbide ceramic and an oxide ceramic, and inorganic compound components bound to the inner surfaces formed by the skeleton particles directly bound with each other and including an inorganic compound formed by calcinating pore forming particles including an organic polymer and inorganic particles being one or more inorganic material of a nitride ceramic, a carbide ceramic, an oxide ceramic, a metal and a metal compound. The ceramic of the skeleton particles is different from the inorganic compound of the inorganic compound components.

Abstract: A hollow diamond shell with a size of a few micrometer to hundreds of micrometer and having a geometrical shape and its fabrication method are disclosed. A diamond film is deposited by a CVD method and porous grits are used as a victim substrate to be etched later, so that the substrate can be easily removed by a capillary phenomenon that an etching solution can be intensively absorbed in a substrate etching process. Thus, a perfect diamond shell with only a plurality of fine pores with a nano size without any conspicuous opening can be obtained. Also, a diamond shell with a small opening of below 10 percent of the surface area of grits can be fabricated by controlling a nuclear generation of diamond particles.

Abstract: Methods and apparatus are provided for a shield to protect a surface from the impact of hyper-velocity projectiles. The apparatus comprises a foam material that is configured to cover the surface to be protected and is attached directly to that surface. A coating material is typically disposed on the outer surface of the foam material and may penetrate the foam material to a predetermined depth. The foam material and the coating material are selected to form a composite having predetermined values of sonic velocity, toughness, and thermal conductivity. The composite of foam material and coating material can be significantly lighter in weight than a metal shield having equivalent protective characteristics.

Abstract: An adsorbent having porosity expanded by contact with a first agent effecting such expansion and a pressurized second agent effecting transport of the first agent into the porosity, wherein the adsorbent subsequent to removal of the first and second agents retains expanded porosity. The adsorbent can be made by an associated method in which materials such as water, ethers, alcohols, organic solvent media, or inorganic solvent media can be utilized as the first agent for swelling of the porosity, and helium, argon, krypton, xenon, neon, or other inert gases can be employed as the pressurized second agent for transport of both agents into the porosity of the adsorbent, subsequent to which the agents can be removed to yield an adsorbent of increased capacity for sorbable fluids, e.g., organometallic compounds, hydrides, halides and acid gases.

Abstract: Methods for preparing porous inorganic coatings on porous supports using certain pore formers, and porous supports coated with porous inorganic coatings. The porous inorganic coatings may serve as membranes useful in, for example, liquid-liquid, liquid-particulate, gas-gas, or gas-particulate separation applications.

Abstract: This invention provides a fabric having a foamed layer. The fabric is obtained by the foaming method which prevents to expand heat expansible micro capsules in a cross-linked resin. A foamed layer is laminated on the fabric material. The foamed layer is comprising of heat expanded micro capsules, a synthetic resin holding the capsules on the fabric material, silica fine powders which are hydrophilic and fine porous. The fabric is obtained by the following method. A synthetic resin solution comprising of heat expansible micro capsules and the silica fine powders is prepared. The solution is applied on the fabric material at all surface or pattered surface. The synthetic resin layer is formed after drying. After that, the heat expansible micro capsules are expanded by heating.

Abstract: Described herein is a composite exhibiting a change in electrical resistance proportional to the concentration of a reducing gas present in a gas mixture, detector and sensor devices comprising the composite, a method for making the composite and for making devices comprising the composite, and a process for detecting and measuring a reducing gas in an atmosphere. In particular, the reducing gas may be carbon monoxide and the composite may comprise rutile-phase TiO2 particles and platinum nanoclusters. The composite, upon exposure to a gas mixture containing CO in concentrations of up to 10,000 ppm, exhibits an electrical resistance proportional to the concentration of the CO present. The composite is useful for making sensitive, low drift, fast recovering detectors and sensors, and for measuring CO concentrations in a gas mixture present at levels from sub-ppm up to 10,000 ppm. The composites, and devices made from the composites, are stable and operable in a temperature range of from about 450° C.

Abstract: A first ceramic substrate includes a substrate (2) and a glaze layer (3), wherein the glaze layer has a surface having an Ra of 0.02 ?m or less and a Ry of 0.25 ?m or less. A second ceramic substrate is formed by subjecting a glass layer (24) formed on a surface of a substrate (2) to heating-and-pressurizing treatment, thereby forming a glaze layer (3) on the substrate (2), and planarization-polishing the surface of the glaze layer. A third ceramic substrate includes a substrate (2), a glaze layer (3) containing substantially no pores formed on the substrate (2) and the surface thereof being planarization-polished, and a wiring pattern (21), wherein at least one first end of the wiring pattern is exposed to the glaze layer (3) surface of the substrate (1), and at least one second end is exposed to another surface of the substrate (1).

Abstract: Electro-magnetic-energy absorbing materials are used to treat air filters, such as those used in association with electronic equipment thereby suppressing the transmission of electromagnetic interference (EMI) therethrough. Disclosed are processes and materials for applying EMI-absorbing materials to air filters thereby improving EMI-shielding effectiveness in an economically efficient manner. In one embodiment, an absorptive solution is prepared using an absorptive material and a binding agent. A heavy coating of absorbing solution applied to an air filter substrate, for example by dipping or spraying. Excess absorbing material is subsequently removed and the absorbing material cured, such that the passage of air through the filter remains substantially unimpeded. The resulting absorptive air filter is then optionally treated with a flame retardant to meet a predetermined safety standard.

Abstract: Disclosed is a wiring member comprising a sheet-like porous substrate provided with a large number of open-cells which are three-dimensionally branched and opened to a first major surface as well as to a second major surface of the porous substrate, and a conductive portion formed on the first major surface of the porous substrate and formed at least partially an inter-penetrating structure together with the porous substrate at an interface of the porous substrate. The apertures of the open-cells on the first major surface have an average diameter and an average number of the apertures, at least one of which is smaller than that of the second major surface.

Abstract: It is a principal object of the present invention to provide a dielectric having a high relative dielectric constant and dielectric loss minimized in high frequency bands. That is, the present invention relates to a composite dielectric comprising conductive particles dispersed in a porous body of inorganic oxide, wherein 1) the relative dielectric constant ¥r of the dielectric in high frequency bands of 1 GHz or more is 4 or more, and 2) the dielectric loss tan? of the dielectric in high frequency bands of 1 GHz or more is 2×10?4 or less, and to a manufacturing method therefor.

Abstract: A support for solid phase extraction is provided for preventing the fracture of the porous body of the support and the space between the porous body and its container, and for processing various amounts of liquids to be processed while maintaining the ease of passage of liquid in use. The support for solid phase extraction comprises a ceramic substrate with one or more holes formed therein, and an inorganic porous material, filled in the hole or holes, which is produced by sol-gel transition accompanied by phase transition.

Abstract: A ceramic structure having a scaffold with at least one opening and at least one porous filler material at least partially filling the at least one opening is described. The porous ceramic filler includes a plurality of pores. The pores have an average size in a range from about 2 nm to about 100 nm. The plurality of pores includes at least one pore architecture. For each pore architecture, the average pore size does not vary by more than about 100% when the average pore size is in a range from about 2 nm to about 50 nm, and the average pore size does not vary by more than about 50% when the average pore size is greater than about 50 nm. The plurality of pores includes at least two pore architectures when the porous filler material is silica. Also described is a method of making the ceramic structure.

Abstract: A composite material having a high thermal conductivity and a small thermal expansion coefficient, which is obtained by impregnating a porous graphitized extrudate with a metal; the composite material having such anisotropy that the thermal conductivity and the thermal expansion coefficient are 250 W/mK or more and less than 4×10?6/K, respectively, in an extrusion direction; and that the thermal conductivity and the thermal expansion coefficient are 150 W/mK or more and 10×10?6/K or less, respectively, in a direction perpendicular to the extrusion direction.

Abstract: A porous calcium phosphate ceramic comprising a support portion having pores, and ring-shaped portions formed in the pores, the ring-shaped portions having pluralities of fine pores so that they have a network structure. A method for producing a porous calcium phosphate ceramic comprising stirring a slurry containing coarse calcium phosphate particles, fine calcium phosphate particles, a nonionic surfactant and a water-soluble high-molecular compound to foam the slurry; gelling the foamed slurry; and then drying the resultant get to obtain a sintered porous calcium phosphate ceramic; the nonionic surfactant being malamide and/or polyoxyethylene lauryl ether.

Abstract: A ceramic brake lining which is reinforced with carbon fibers and has a matrix which consists essentially of silicon carbide together with silicon and/or carbon, wherein the reinforcing fibers used are long fibers having a mean length of at least 10 mm which are aligned in the plane parallel to the friction surface, a process for its production and its use in combination with brake discs made of C/SiC or CFC or as lining in friction clutches.

Abstract: The invention provides systems and methods for forming low density ceramic felt material cores which are sandwiched between ceramic matrix composites to form a ceramic matrix laminate possessing a high strength-to-density ratio while maintaining a stiffness required for mechanical applications. The core and face plates are coupled together using a chemical vapor process.

Abstract: The invention concerns a method for preparing a thin ceramic material with controlled surface porosity gradient, including (A) infiltrating a porous pore-forming substrate of controlled thickness, with a ceramic material suspension; (B) evaporating the solvent; (C) a step which includes eliminating the pore-forming agents and the various organic additives, and (D) a sintering step. The invention also concerns the use of the ceramic material in the method for preparing a solid electrolyte and a mixed ionic-electronic conductor, in methods for preparing ultra-pure oxygen, for eliminating oxygen from a gaseous atmosphere, for producing heat energy, for preparing gas or liquid filtering membranes, for ceramic/metal joints, for biomaterials and sensors.

Abstract: A composite material that includes from about 18 wt % to about 22 wt % of a thermosetting polymeric resin; and from about 82 wt % to about to about 78 wt % of an inorganic filler, wherein the inorganic filler comprises a mixture of particles wherein about 20 parts by weight of the mixture has an average particle size of about 10 ?m or larger, about 15 parts by weight of the mixture has an average particle size of from less than 10 ?m to about 5 ?m, and about 10 parts by weight of the mixture has an average particle size of from about 3 to about 1 ?m.

Abstract: A ceramic composite body includes at least two layers: material layer A and material layer B. Material layer A contains phases of a metal and the carbide of this metal. Material layer B contains silicon carbide that has been loosely bound by sintering. A method for fabricating the composite body is included and a protective armor against projectiles.

Abstract: Coating systems according to the prior art, wherein a ceramic layer is applied to a metallic layer of the coating system, the connection between metal and ceramic often being poor. A coating system (20) according to the invention has a porous layer (4) in which a ceramic (7) is at least partly disposed, so that the connection between ceramic (7) and the metal of the porous layer (4) is improved.

Abstract: A nanostructured apparatus may include a mesoporous template having an array of regularly-spaced pores. One or more layers of material may conformally coat the walls to a substantially uniform thickness. Such an apparatus can be used in a variety of devices including optoelectronic devices, e.g., light emitting devices (such as LEDs, and lasers) and photovoltaic devices (such as solar cells) optical devices (luminescent, electro-optic, and magnetooptic waveguides, optical filters, optical switches, amplifies, laser diodes, multiplexers, optical couplers, and the like), sensors, chemical devices (such as catalysts) and mechanical devices (such as filters for filtering gases or liquids).

Abstract: The invention relates to the area of armor and in particular to multilayer armor having a composite layer containing a first material made of a metal or an alloy and a second material where the second material is porous and in that the metal or metal alloy is infiltrated into some or all of the pores of the second material and characterized in that a cage made of plates having openings contains the first and second materials and in that the cage is itself coated, at least partly, with the infiltration metal or alloy, the melting point of the cage material being higher than that of the infiltration metal or alloy.

Abstract: A coated cemented carbide tool, and a method for making the same, wherein the as-sintered substrate is formed by sintering in an atmosphere having at least a partial pressure and for a part of the time a nitrogen partial pressure.