Abstract: Discontinuous diamond particulate containing metal matrix composites of high thermal conductivity and methods for producing these composites are provided. The manufacturing method includes producing a thin reaction formed and diffusion bonded functionally graded interactive SiC surface layer on diamond particles. The interactive surface converted SiC coated diamond particles are then disposed into a mold and between the particles and permitted to rapidly solidify under pressure. The surface conversion interactive SiC coating on the diamond particles achieves minimal interface thermal resistance with the metal matrix which translates into good mechanical strength and stiffness of the composites and facilitates near theoretical thermal conductivity levels to be attained in the composite. Secondary working of the diamond metal composite can be performed for producing thin sheet product.

Abstract: The invention concerns a composite material consisting of intermetallic phases and ceramic, in particular in the form of a coating on metallic substrates, as well as an arc wire spraying process for production of the composite material in which the intermetallic phases and the ceramics to be deposited are newly formed during the deposit process from the components of the supplied wires by chemical reaction. The invention further concerns wear resistant layers formed by the composites, tribologic layers and plating or hard-facing materials.

Abstract: This invention relates to a high thermal conductivity composite material which comprises diamond particles and a copper matrix useful as electronic heat sinks for electronics parts, particularly for semiconductor lasers, high performance MPUs (micro-processing units), etc., also to a process for the production of the same and a heat sink using the same. According to the high thermal conductivity diamond sintered compact of the present invention, in particular, there can be provided a heat sink having a high thermal conductivity as well as matching of thermal expansions, most suitable for mounting a large sized and high thermal load semiconductor chip, for example, high output semiconductor lasers, high performance MPU, etc. Furthermore, the properties such as thermal conductivity and thermal expansion can freely be controlled, so it is possible to select the most suitable heat sink depending upon the features and designs of elements to be mounted.

Abstract: This invention discloses a manufacturing method and a structure for printed circuit boards. The printed circuit boards are often used for supporting electronic components in circuit and conducting the heat from electronic components. The printed circuit board structure includes a laminated structure. The laminated structure comprises an electric conduction layer and an insulation layer. The electric conduction layer can be made of a special thermal conduction material, including a metal and a bracket structure of carbon element. The insulation layer can be made of thermal conduction material as well, combining a bracket structure of carbon element. The bracket structure of carbon element has high thermal conductivity so as to improve the heat conduction efficiency. The corresponding manufacturing method for this thermal conduction material can be made with chemical vapor deposition, physical vapor deposition, electroplating or the other materials preparation method.

Abstract: A lightweight, high strength structure is described where a core material has a first and second metal matrix composite layer on surfaces of the core material. A sandwich type structure may be formed. The core material may be a solid material, a foam, a honeycomb structure, or may be a channeled material. The metal matrix composite layers may include fiber reinforced metal matrix composites.

Abstract: To provide a components joining method and a components joining structure which can realize joining of components while securing conduction at a low electrical resistance with high reliability. In a construction in which by using a solder paste containing solder particles 5 in a thermosetting resin 3a, a rigid substrate 1 and a flexible substrate 7 are bonded by the thermosetting resin 3a, and a first terminal 2 and a second terminal 8 are electrically connected by the solder particles 5, a blending ratio of an activator of the thermosetting resin 3a in the solder paste is properly set and oxide film removed portions 2b, 8b, and 5b are partially formed in oxide films 2a, 8a, and 5a of the first terminal 2, the second terminal 8, and the solder particles 5.

Abstract: A composite powder product suitable for hardmetal cutting tools and wear resistance applications is described. The product comprises a hard particulate phase chosen from a range of metallic carbides, nitrides, carbonitrides and the like, onto which hard phase is deposited a coating of cobalt or nickel, or a mixture of cobalt and nickel. The hard particulate phase has a particle size between 0.1 and 10 ?m, and preferably between 0.1 and 2 ?m.

Abstract: The invention relates to a method for producing a semifinished product from a composite material. The semifinished product is made of a composite material consisting of a metallic matrix material and of high-tensile fibers embedded in the matrix material, whereby the metallic matrix material is formed from titanium or from a titanium-based alloy. According to the invention, ceramic particles are incorporated in the matrix material in order to increase the strength of the semifinished product with regard to torsional stress or transversal stress.

Abstract: The invention relates to a method that involves (a) removing graphite from at least one surface of a metal graphite composite material; (b) chemically cleaning or plasma etching the surface of the metal graphite composite material; (c) applying a metal-containing material to the surface of the chemically cleaned or plasma etched metal graphite composite material, and thereby forming an intermediate layer; (d) applying a metal coating on the intermediate layer, and thereby forming a composite material. The invention also relates to a composite material comprising (a) a metal graphite composite substrate having at least one surface that is substantially free of graphite; (b) a metal-containing intermediate layer located on a surface of the substrate; and (c) a metal coating on the intermediate layer.

Abstract: Fibrous sheets are coated or impregnated with a biodegradable composition to render the sheets more resistant to penetration by liquids. Biodegradable polymer blends suitable for use in coating or impregnating a fibrous sheet can be manufactured from at least one type of polyhydroxybutyrate, optionally in combination with at least one additional biodegradable polymer (e.g., a “hard” biodegradable polymer having a glass transition temperature of at least about 10° C. and/or a “soft” biodegradable polymer having a glass transition temperature less than about 0° C. Sufficient inorganic filler may be included so as to render the treated sheet microwaveable. The biodegradable polymer compositions are especially well-suited for coating or impregnating paper sheets, e.g., 12-15 lb/3000 ft2 tissue paper to yield food wraps. Food wraps will typically be manufactured to have good “dead-fold” properties so as to remain in a wrapped position and not spring back to an “unwrapped” form.

Abstract: The present invention relates to methods of preparing a polymer composite using a giant magnetostrictive material, and more particularly, to polymers composite having various improved properties, in which the advantageous structure of the giant magnetostrictive material produced by unidirectional solidification can be maintained by removing the eutectic phase from the magnetostrictive material and filling resulting voids with a polymer resin.

Abstract: A composite is formed by inserting a ceramic powder into a channel of a preform to form a ceramic powder filled preform. The ceramic powder has at least one reactive ceramic powder. The preform is a ceramic, ceramic-metal composite, metal or combination thereof that has walls that define a plurality of channels each channel having an opening at a surface of the preform. The ceramic powder filled preform is infiltrated with a molten metal to form the ceramic-metal body, which has at least one ceramic phase that is a reaction product of the reactive ceramic and molten infiltrated metal.

Abstract: A product in which at least a portion of the product has a nanocrystalline microstructure, and a method of forming the product. The method generally entails machining a body in a manner that produces chips consisting entirely of nano-crystals as a result of the machining operation imposing a sufficiently large strain deformation. The body can be formed of a variety of materials, including metal, metal alloy and ceramic materials. Furthermore, the body may have a microstructure that is essentially free of nano-crystals, and may even have a single-crystal microstructure. The chips produced by the machining operation may be in the form of particulates, ribbons, wires, filaments and/or platelets. The chips are then used to form the product. According to one aspect of the invention, the chips are consolidated to form the product, such that the product is a monolithic material that may contain nano-crystals.

Abstract: The piston ring of the present invention comprises a thermal spray coating comprising chromium carbide particles having an average particle size of 5 ?m or less, and a matrix metal composed of a Ni—Cr alloy or a Ni—Cr alloy and Ni at least on an outer peripheral surface, said thermal spray coating having an average pore diameter of 10 ?m or less and a porosity of 8% or less by volume. A piston ring having excellent wear resistance, scuffing resistance and peeling resistance with little attackability on a mating member is obtained by forming a homogeneous thermal spray coating having a fine microstructure.

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 fiber-reinforced metal-ceramic composite material having a hot ceramic side and a cool metal side and a graded ceramic-metal zone therebetween, wherein the ceramic content of said composite ranges from 100% at said hot ceramic side to 0% at said cool metal side and the metal content of said composite ranges from 0% at said hot ceramic side to 100% at said cool metal side, and wherein said fiber reinforcement is graded by coefficient of thermal expansion from the hot ceramic side to the cool metal side.

Abstract: Discontinuous diamond particulate containing metal matrix composites of high thermal conductivity and methods for producing these composites are provided. The manufacturing method includes producing a thin reaction formed and diffusion bonded functionally graded interactive SiC surface layer on diamond particles. The interactive surface converted SiC coated diamond particles are then disposed into a mold and between the particles and permitted to rapidly solidify under pressure. The surface conversion interactive SiC coating on the diamond particles achieves minimal interface thermal resistance with the metal matrix which translates into good mechanical strength and stiffness of the composites and facilitates near theoretical thermal conductivity levels to be attained in the composite. Secondary working of the diamond metal composite can be performed for producing thin sheet product.

Abstract: The invention provides spray coatings to achieve circumferentially non-uniform seal clearances in turbomachines. In steam and gas turbines it is desirable to assemble the machines with elliptical seal clearances to compensate for expected casing distortion, rotordynamics or phenomena that cause circumferentially non-uniform rotor-stator rubs. The claimed invention allows the casing hardware to be fabricated round, and a spray coating is applied to the radially inner surface such that the coating thickness varies circumferentially, providing the desired non-uniform rotor-stator clearance during assembly.

Abstract: A method for making aerospace face seal rotors reinforced by rhenium metal, alloy, or composite in combination with silicon carbide or other ceramic. The resulting rotor also is disclosed. Ceramic grains, preferably silicon carbide (SiC), are mixed with powdered metallic (PM) binder that may be based on a refractory metal, preferably rhenium. The mixture is applied to a rotor substrate. The combined ceramic-metal powder mixture is heated to sintering temperature under pressure to enable fusion of the ceramic in the resulting metal-based substrate. A load may then be applied under an elevated temperature. The resulting coated rotor can exhibit high hot hardness, increased durability and/or high hot wear resistance, as well as high thermal conductivity.

Abstract: There is provided a metal thin film comprising a metal plate and a diamond particle dispersed in the metal plate. According to the present invention, the metal thin film has a film thickness of 5 nm to 35000 nm. The diamond particle is dispersed almost homogeneously over the direction of the film thickness of the metal thin film. The metal thin film has the diamond particle at a concentration of 1 to 12%.

Abstract: The invention includes a cermet composition represented by the formula (PQ)(RS) comprising: a ceramic phase (PQ) and a binder phase (RS) wherein, P is a metal selected from the group consisting of Si, Mn, Fe, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W and mixtures thereof, Q is nitride, R is a metal selected from the group consisting of Fe, Ni, Co, Mn and mixtures thereof, S consists essentially of at least one element selected from Cr, Al, Si, and Y, and at least one reactive wetting aliovalent element selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W and mixtures thereof.

Abstract: A boron containing ceramic-aluminum metal composite is formed by mixing a boron containing ceramic with a metal powder comprised of aluminum or alloy thereof, shaping the mixture into a porous preform, contacting the preform with an infiltrating metal comprised of aluminum or alloy thereof that melts at a lower temperature than the metal powder and heating to a temperature sufficient to melt the infiltrating metal, but insufficient to melt the metal powder, such that the infiltrating metal infiltrates the porous preform to form the composite. The composite that is formed may be used for vehicular parts.

Abstract: A high thermal conductive material includes substantially silicon carbide and metal silicon, and preferably is formed by impregnating the space between the bonded silicon carbide crystals with the metal silicon. The production process comprises adding an organic binder and a dispersant or a binder having a dispersing effect to a silicon carbide powder to obtain a mixture, forming the mixture by cast forming or pressure forming to obtain a formed product, treating the formed product with heat at 2,100–2,500° C. for 1–5 hours to obtain a base material, impregnating the base material with an organic resin, treating the base material with heat, and impregnating the base material with metal silicon at 1,450–1,800° C. under reduced pressure.

Abstract: Compound preforms are provided having a first region, including a porous ceramic and a second region including a porous or solid ceramic in which the two regions differ in composition. The compound preform is infiltrated with a liquid metal which is then solidified to form a metal matrix composite.

Abstract: Composite which contains reinforcing fibers comprising carbon and whose matrix comprises silicon carbide, silicon and copper, with the mass fraction of copper in the composite being up to 55%, processes for producing it, in particular by liquid infiltration of C/C intermediate bodies with melts comprising Si and/or Cu and Si, and also its use as friction lining in a friction pairing with ceramic brake discs or clutch discs comprising C/SiC.

Abstract: A preform for the composite material and an aluminum composite material which can form a composite material has excellent abrasion resistant property and high strength and a manufacturing method of the same are disclosed. A pre-mixture 9 comprising aluminum borate whisker 3 and potassium titanate whisker 4 in the range of 5% to 20% by volume was sintered at certain temperature. The titanium oxide 11 produced by the whisker reaction was bound to the surface of aluminum borate whisker 3, and the preform having high strength was obtained accordingly. Aluminum composite material 10 having excellent abrasion resistant property and high strength was obtained by impregnating aluminum alloy 6 to preform 1 for composite material.

Abstract: A reinforced composite material, having isotropic thermal expansion properties and a low coefficient of thermal expansion over at least the temperature range of from about 0° C. to at least about 150° C., which composite material comprises in combination a first continuous phase comprising a three dimensional preformed bonded powder material reinforcement, including a bonding agent, and in which the bonded powder material is chosen from the group consisting of zirconium tungstate, hafnium tungstate, zirconium hafnium tungstate, and mixtures of zirconium tungstate and hafnium tungstate, and a second continuous phase matrix material chosen from the group consisting of aluminium, aluminium alloys in which aluminium is the major component, magnesium, magnesium alloys in which magnesium is the major component, titanium, titanium alloys in which titanium is the major component, engineering thermoplastics and engineering thermoplastics containing a conventional solid filler.

Abstract: Superconducting phases comprising magnesium diboride related composites and methods of preparation.

Abstract: A tough wear-resistant hard member that includes a hard composite member and a support that has a surface area adjacent to the hard composite member wherein the hard composite member is affixed to the support over at least a portion of the adjacent surface area of the support. The hard composite member includes a plurality of discrete hard constituents distributed in the hard composite member wherein each one of the discrete hard constituents is of a size so as to have a surface area between about 0.001 square inches and about 16 square inches. The hard composite member further contains a matrix powder that includes particles wherein substantially all of the hard particles have a size smaller than the size of the hard constituents.

Abstract: Aluminum matrix composite wire comprising ceramic fibers with a matrix of aluminum.

Abstract: Compound preforms are provided having a first region, including a porous ceramic and a second region including a porous or solid ceramic in which the two regions differ in composition. The compound preform is infiltrated with a liquid metal which is then solidified to form a metal matrix composite.

Abstract: An apparatus that can be utilized as an internal combustion engine, a compressor, a pump or the like has an indexer which defines a plurality of slots. A pinwheel has a plurality of pins which, when the pinwheel and the indexer are rotated, engaged a respective slot to form a compression chamber. As rotation of these two components continues, each pin sequentially engages a slot to continuously form compression chambers.

Abstract: A compressor having a corrosive resistant coating is disclosed. The coating has a first spray coated metallic layer. A sealant layer is disposed over the sprayed metallic coating which has an organic component, a solvent component, and an inorganic phase.

Abstract: The present invention comprises a method of manufacturing a brazed body. The method comprises forming a multi-layer assembly comprising: a first material capable of forming a first oxide and having a melting temperature higher than 660° C.; a first reducing metal adjacent the first material, the reducing metal capable of reducing at least a portion of the first oxide on the first material a braze adjacent to the reducing metal; and a second material adjacent the braze, the second material comprising a material having a melting temperature higher than 660° C. The method then comprises creating a vacuum around the assembly, and heating the assembly to melt the reducing metal and the braze. The assembly is then subject to cooling to thereby form the brazed body.

Abstract: A method for the manufacture of a metal matrix composite by the SHS technique comprises a reaction between titanium and carbon or between titanium and borium, forming titanium carbide or titanium diboride. Tantalum and molybdenum or chromium are blended to the raw materials of the metal matrix composite to improve the resistance of the metal matrix composite to high temperatures and/or corrosion. The invention also relates to a metal matrix composite which contains elements at whose presence a protective oxide layer is formed on the surface of the metal matrix composite during the use.

Abstract: The invention includes the use of a high-modulus fiber metal matrix composite material as a backing plate for physical vapor deposition targets, as a lid for microelectronics packages, as a heat spreader, and as a heat sink. In one implementation, copper-coated carbon fibers are mixed with copper powder. In another implementation, the mixture is consolidated to a carbon fiber metal matrix composite by using a vacuum hot press. The resultant backing plate has a coefficient of thermal expansion of 4.9×10−6/C, thermal conductivity of at least 300 W/mK, density of greater than 99% of theoretical, and the composite material of the backing plate is 30% lighter than Cu while also having higher stiffness than Cu. The high-modulus fiber metal matrix composite backing plate can be used for high power W, Ta, and ceramic PVD targets.

Abstract: A method for producing an aluminum nitride/aluminum base composite material comprising the steps of; (A) charging aluminum nitride powder into a container provided in a molten metal pressure apparatus, (B) applying pressure to the aluminum nitride powder in the container, (C) pouring a molten aluminum base material into the container, and, (D) applying pressure to the molten aluminum base material in the container to fill the aluminum base material in space between the aluminum nitride powder particles.

Abstract: A metal-ceramic composite material has a ceramic matrix and a metallic phase, which are intermingled with one another, together form a virtually completely dense body and are in contact with one another at boundary surfaces. An interlayer between the metallic phase and the ceramic matrix has a thickness of between 10 nm and 1 000 nm and is composed of reaction products of the metallic phase and the ceramic phase.

Abstract: This invention relates to metallurgy and machine building, more specifically to the development of a method that improves service life, durability and repair of machine components by applying coatings to working surfaces followed by special treatment of the surfaces. The essence of the invention is deposition of erosion and corrosion resistant coatings on machine components, that comprises a plurality of microlayers wherein each of the microlayers comprises one or more elements selected from the transition metal group, solid solutions or interstitial phases based thereon, and wherein one or more of the microlayers is subjected to high energy non-metallic ion deposition that causes changes in structure and composition of the deposited microlayer thus improving performance characteristics. After the full coating has been deposited, a vibromechanical treatment with micro-pellets is applied to the surface of machine components, that improves distribution of residual stresses.

Abstract: A high thermal conductive material includes substantially silicon carbide and metal silicon, and preferably is formed by impregnating the space between the bonded silicon carbide crystals with the metal silicon. The production process comprises adding an organic binder and a dispersant or a binder having a dispersing effect to a silicon carbide powder to obtain a mixture, forming the mixture by cast forming or pressure forming to obtain a formed product, treating the formed product with heat at 2,100-2,500° C. for 1-5 hours to obtain a base material, impregnating the base material with an organic resin, treating the base material with heat, and impregnating the base material with metal silicon at 1,450-1,800° C. under reduced pressure.

Abstract: A co-continuous metal-ceramic (CCMC) article resulting from a chemical reaction between a ceramic preform and a molten metal is disclosed. The ceramic preform is produced by intermixing a precursor material and a particulate ceramic material, shaping that mixture into a predetermined configuration, and transforming the precursor material into a ceramic matrix. Shaping the preform, whether through a simple molding process, or through a sophisticated rapid prototyping process, is disclosed. CCMC articles having regions of different composition and/or properties are also disclosed.

Abstract: A heat spreader includes an electromagnetic soft iron sheet and a plating layer formed on the surface of the sheet. The plate is made of a rustproof metal. An electronic component is mounted on an aluminum base with an HITT substrate and the heat spreader in between. The heat spreader is manufactured at low cost and has a favorable property as a heat dissipating material.

Abstract: The surface to be plated of a composite made of a metallic and a non-metallic material is degreased and otherwise cleaned and immersed in a palladium activator fluid conditioned with a hydrogencarbonate to a pH of 2˜5. After this pretreating process, the composite is plated with a metal and becomes most suitable for use as a material for heat sink on hybrid ICs since it can be efficiently soldered and has better corrosion resistance.

Abstract: Wires and cables made from ceramic oxide fibers encapsulated within a matrix that includes aluminum.

Abstract: A tightened body tightening force stabilization agent capable of minimizing a variation in torque coefficient suitable for controlling a tightened body tightening force by a torque method, comprising, as an active ingredient, a polymer of unsaturated chain hydrocarbon with a carbon quantity of four; a method for stabilization of tightened body tightening force, comprising the steps of applying the polymer to at least either of a thread part such as a bolt member and a washer and the threaded part or seat surface of the tightened body and performing a tightening operation.

Abstract: Heat-hardened binder compositions based on at least one solid and/or liquid epoxide resin, a flexibilizing epoxide compound and an elastomer-modified epoxide resin as well as optionally latent hardeners are suitable for the production of multi-layer laminates, which consist of two outer metal plates and an interlayer of this binder matrix as well as optionally a flat material incorporated into the binder. These multi-layer laminates are suitable for the production of lightweight components for the construction of machinery, vehicles and tools and in particular for the construction of automobiles. Thus weight-optimized components with great strength and also optionally acoustic and/or reinforcing action can be produced.

Abstract: A compressor having a corrosive resistant coating is disclosed. The coating has a first spray coated metallic layer. A sealant layer is disposed over the sprayed metallic coating which has an organic component, a solvent component, and an inorganic phase.

Abstract: Wires and cables made from ceramic oxide fibers encapsulated within a matrix that includes aluminum.

Abstract: A lightweight armor system may comprise a substrate having a graded metal matrix composite layer formed thereon by thermal spray deposition. The graded metal matrix composite layer comprises an increasing volume fraction of ceramic particles imbedded in a decreasing volume fraction of a metal matrix as a function of a thickness of the graded metal matrix composite layer. A ceramic impact layer is affixed to the graded metal matrix composite layer.

Abstract: Composite wear component produced by casting and consisting of a metal matrix whose working face or faces includes inserts which have a very high wear resistance, characterized in that the inserts consist of a ceramic pad, this ceramic pad consisting of a homogeneous solid solution of 20 to 80% of Al2O3 and 80 to 20% of ZrO2, the percentages being expressed by weights of the constituents, and the pad then being impregnated with a liquid metal during the casting.