Abstract: A method for manufacturing a component of a rotating machine comprises the steps of forming a structural inner portion by additive manufacturing from a first material; covering the structural inner portion with a protective outer portion made of a second material; the first material has a melting point higher than a second material.

Abstract: A porous member includes a base member and carbon nanostructures. The base member includes a porous body having a porosity of more than or equal to 80%. The carbon nanostructures are formed on a surface of the base member, and have a width of less than or equal to 100 nm. A catalyst member includes a catalyst arranged on surfaces of the carbon nano structures.

Abstract: A method of coating a composite material and an associated coated composite structure are disclosed to provide increased wear resistance and surface protection. The edge of the composite material may be coated so as to provide protection for the edge. A method of coating a composite material includes applying an adhesion promotion layer to the composite material. The adhesion promotion layer includes a binder paint and a plurality of metal particles within the binder paint. The metal particles may be irregularly shaped. The method also includes applying a thermal spray coating to the adhesion promotion layer. The thermal spray coating may include a twin wire arc bond coating on the adhesion promotion layer and a high velocity oxygen fuel spray coating on the twin wire arc bond coating.

Abstract: The invention relates to a wear part or tool comprising a body containing an iron-group metal or alloy, a wear-resistant layer metallurgically bonded to a surface of the body through an intermediate layer, characterised in that the wear-resistant layer comprises at least 13 vol. % of grains of metal carbide selected from the group consisting of WC, TiC, VC, ZrC, NbC, Mo2C, HfC and TaC and grains of (CrlMe)xCy and a metal based phase comprising of a solid solution of 0.5 to 20% Cr, 0.2 to 15% Sil and 0.2 to 20% carbon, where Me is Fe, Co and/or Ni; and the intermediate layer has a thickness of 0.05 to 1 mm and comprises Si in amount of 0.1 to 0.7 of that in the wear-resistant layer, chromium in amount of 0.1 to 0.6 of that in the wear-resistant layer and the metal of the metal carbide in amount of 0.2 to 0.6 of that in the wear-resistant layer and to a method of producing such a wear part.

Abstract: A chromate-free coated metal sheet according to the present invention includes: a metal sheet; and a coating film ? which contains an organic resin A as a film formation component and a flaky aluminum pigment C having a deactivation-treated surface on at least one surface of the metal sheet; wherein the thickness of the coating film ? is in a range of 2 to 10 ?m.

Abstract: A method of forming a corrosion resistant neutron absorbing coating comprising the steps of spray or deposition or sputtering or welding processing to form a composite material made of a spray or deposition or sputtering or welding material, and a neutron absorbing material. Also a corrosion resistant neutron absorbing coating comprising a composite material made of a spray or deposition or sputtering or welding material, and a neutron absorbing material.

Abstract: Metal coated molded polymer articles are described made from a polyoxymethylene polymer. In accordance with the present disclosure, the molded articles are produced from a polymer composition containing a functionalized polyoxymethylene polymer combined with a metal pigment. The functionalized polyoxymethylene polymer may comprise a polyoxymethylene polymer that has a significant amount of hydroxyl groups present in the terminal positions. The terminal positions can be on the end of the polymer chain or on the side of the polymer chain. In one embodiment, the metal coating is applied to the molded article using an electrolytic plating process. Electrolytic coatings applied to substrates made in accordance with the present disclosure have displayed excellent peel strengths.

Abstract: Provided are a heat releasing material for an electronic device being manufactured by the junction of a metal impregnated carbon composite material on a copper or aluminum substrate with reduced warpage; and a method for manufacturing the heat releasing material. A metal substrate/metal impregnated carbon composite material structure, characterized in that it comprises a metal substrate comprising a metal sheet, plate or block and, being joined on the metal substrate via a brazing material, a metal impregnated carbon composite material having a thickness of 0.1 mm to 2 mm; and a method for manufacturing the metal substrate/metal impregnated carbon composite material structure, characterized in that it comprises a step wherein a brazing material is caused to be present between the metal substrate and the metal impregnated carbon composite material, and they are kept at a temperature of 500° C. or higher and under a pressure of 0.2 MPa or more and then cooled.

Abstract: The invention relates to a wear part or tool comprising a body containing an iron-group metal or alloy, a wear-resistant layer metallurgically bonded to a surface of the body through an intermediate layer, characterised in that the wear-resistant layer comprises at least 13 vol. % of grains of metal carbide selected from the group consisting of WC, TiC, VC, ZrC, NbC, Mo2C, HfC and TaC and grains of (CrlMe)xCy and a metal based phase comprising of a solid solution of 0.5 to 20% Cr, 0.2 to 15% Sil and 0.2 to 20% carbon, where Me is Fe, Co and/or Ni; and the intermediate layer has a thickness of 0.05 to 1 mm and comprises Si in amount of 0.1 to 0.7 of that in the wear-resistant layer, chromium in amount of 0.1 to 0.6 of that in the wear-resistant layer and the metal of the metal carbide in amount of 0.2 to 0.6 of that in the wear-resistant layer and to a method of producing such a wear part.

Abstract: A composition for deposition as a coating includes a matrix material having a molten fraction of between about 33% and about 90% by volume and a filler material interspersed within the matrix.

Abstract: Particles having a relatively high porosity can be used in an information handling system or other information handling system. In one aspect, a portable information handling system can include an electrical circuit that can generate thermal energy during normal operation of the electrical circuit. The portable information handling system can also include a housing that includes a first material and particles having a porosity of at least 80%. In another aspect, an information handling system can include a housing that includes a material and a coating, wherein the coating includes a polymeric material and particles having a porosity of at least 80%. In another aspect, a process of forming an information handling system can include coating a surface of a housing, wherein the coating includes particles having a porosity of at least 80%, and placing an electrical circuit within the housing after coating the surface.

Abstract: A metal matrix composite material comprising a pair of metal plates having a powder mixture disposed therebetween forming an intermediate layer is disclosed. Each of the metal plates having a main wall with opposed lateral walls on each end. The first of the metal plates having a main wall having a length greater than a length of the main wall of the second of the metal plates, so that the opposed lateral walls of the second metal plate are each disposed inside of a respective opposed lateral wall of the first metal plate. The powder mixture includes a metal powder and a ceramic powder. The ceramic powder has a neutron absorbing function, wherein the intermediate layer has a theoretical density ratio at least 98%, and a percentage of a total thickness of the metal plates to an overall thickness of the intermediate layer is in a range of 15 to 25%.

Abstract: An electrically conductive composite material for use in the manufacture of electrical contact components, consisting of a metal strip and a contact layer made of a silver or tin contact material, which contact layer is applied at least to one side of the metal strip, whereby the contact material contains as a first additive 0.5 to 60 weight percentage of carbon powder in the form of fine particles having a diameter of ø1=5 to 200 nm and 0.5 to 60 weight percentage of a second powdery additive in the form of fine particles having a diameter of ø2=5 to 200 nm. Moreover a device for the gas atomization of a jet of a flowable or liquid material and a method for the manufacture of an electrically conductive composite material and its use are disclosed.

Abstract: An electrically conductive composite material for use in the manufacture of electrical contact components, consisting of a metal strip and a contact layer made of a silver or tin contact material, which contact layer is applied at least to one side of the metal strip, whereby the contact material contains as a first additive 0.5 to 60 weight percentage of carbon powder in the form of fine particles having a diameter of Ø1=5 to 200 nm and 0.5 to 60 weight percentage of a second powdery additive in the form of fine particles having a diameter of Ø2=5 to 200 nm. Moreover a device for the gas atomization of a jet of a flowable or liquid material and a method for the manufacture of an electrically conductive composite material and its use are disclosed.

Abstract: An environmental coating is applied to the surface of a titanium-base alloy substrate to protect the surface from oxidation, corrosion, erosion, and other damage. The coating is a mixture of a metal and a ceramic, each selected to contribute to the protective function. The proportions of the metal and the ceramic in the coating are selected such that the coefficient of thermal expansion of the coating is about the same as the coefficient of thermal expansion of the substrate.

Abstract: A metal housing is composed of a housing base and auxiliary components such as a sidewall frame, internally threaded bosses and a rib. The housing base is prepared by sheet metal forming, while the auxiliary components are prepared by die-casting, thixo molding or forging. The auxiliary components are fixed to the housing base by an adhesive that contains metal powder consisting of metal particles.

Abstract: The present invention relates composite core/shell nanoparticles and a two-step method for their preparation. The present invention further relates to biomolecule-core/shell nanoparticle conjugates and methods for their preparation. The invention also relates to methods of detection of biomolecules comprising the biomolecule-core/shell nanoparticle conjugates.

Abstract: To provide a composite material member for semiconductor device, an insulated semiconductor device and non-insulated semiconductor device using the composite material member, which are effective for obtaining a semiconductor device that alleviates thermal stress or thermal strain occurring during production or operation, has no possibilities of deformation, degeneration and rupture of each member, and is highly reliably and inexpensive. The composite material member for semiconductor device is characterized by being a composite metal plate with particles composed of cuprous oxide dispersed in a copper matrix, in which a surface of the composite metal plate is covered with a metal layer, and a copper layer with thickness of 0.5 &mgr;m or larger exists in an interface formed by the composite metal plate and the metal layer.

Abstract: The present invention relates to a magnetic device and method for making it, wherein the magnetic device is specifically constructed of grains in a matrix. The matrix may be cement or plaster. The grains have an average diameter that is greater than their magnetic domains. The device may be applied to shielding applications for frequencies ranging from 100 kHz to 10 GHz. The shielding may be applied to walls of a building, consumer products such as magnetic disks, and the like. The grains may be any ferromagnetic material, including ferrite.

Abstract: The tool includes at least one cutting edge formed by a compacted mixture of carbide containing alloy steel and an oxide containing ceramic material, preferably zirconium oxide in an amount of 0.01-15 wt % of the mixture, preferably in the region of 1 to 6 wt %, advantageously in the region of 3 wt %. The mixture may additionally include particles of a hard or abrasive material, such as silicon carbide or aluminum carbide or a boride/carbide such as aluminum titanium diboride-titanium carbide.

Abstract: A new family of chromium boride coatings having excellent adhesive wear and corrosion resistance is disclosed. The coatings comprise hard, ultrafine, chromium boride particles dispersed in a metal matrix, the particles having an average particle size of less than one micron and constituting less than about 30 volume percent of the coating, the balance being metal matrix. The metal matrix may be composed of nickel or a nickel base alloy containing a metal selected from the group consisting of chromium, silicon and iron. The coatings may be prepared by a process which comprises depositing a mechanically blended powder mixture of chromium metal or a chromium alloy or mixture of both, and a boron-containing alloy onto a substrate and then heat treating the as-deposited coating. The heat treatment effects a diffusion reaction between the deposited elements resulting in the formation of ultrafine particles of chromium boride dispersed in a metal matrix.

Abstract: A base metal repair tape includes a first layer formed braze alloy bonded together with fibrillated polytetrafluoroethylene, a second layer formed from powdered base metal comprising oxygen-sensitive superalloy bonded together by fibrillated polytetrafluoroethylene and a third layer comprising a brazing alloy bonded together by fibrillated polytetrafluoroethylene. This is used to repair base metal by placing the first layer on the base metal and brazing the base metal powder so that the brazing alloy melts and diffuses into the base metal powder bonding it to the surface of the article. This permits the braze powder to be bonded to the base metal surface with minimal distance between the base powder particles. The number of alternating layers of base metal and braze alloy can be increased to increase the thickness of the repair. This can also be used to form small intricate parts.

Abstract: A new family of titanium carbide/tungsten boride coatings having excellent wear and corrosion resistance is disclosed. The coatings comprise hard, ultrafine, titanium carbide particles and tungsten boride precipitates dispersed in a metal matrix, the two phases constituting from about 30 to about 80 volume percent of the coating, the balance being metal matrix. The metal matrix contains at least one metal selected from a group consisting of nickel, cobalt and iron. The coatings may be prepared by a process which comprises depositing a mechanically blended powder mixture composed of separate components including a first component containing tungsten carbide and a second component containing boron and at least one metal selected from the group consisting of nickel, cobalt and iron, the powder mixture including titanium in the first or second component or in a separate third component, at least one of the first, second or third components having a melting point below about 1200.degree. C.

Abstract: A base metal repair tape includes a first layer formed from powdered base metal bonded together by fibrillated polytetrafluoroethylene and a second layer comprising a brazing alloy bonded together by fibrillated polytetrafluoroethylene. This is used to repair base metal by placing the first layer on the base metal and brazing the base metal so that the brazing alloy melts and diffuses into the base metal powder bonding it to the surface of the article. This permits the braze powder to be bonded to the base metal surface with minimal distance between the base powder particles.

Abstract: Perforated plates for use as filter media and devices for fluid injection and extrusion have a multiplicity of holes of a uniform size and a selected diameter as small as 0.5 micron. The plates are made by a "wire drawing" process wherein a sacrificial wire material in a plate metal can is repeatedly extruded and restacked, elongating the wire and reducing its diameter. Plates are then cut from the extruded composite, and the wire metal is removed by selective etching. By use of this process, perforated plates with several features unavailable previously are obtained. In particular, the plates have much smaller holes, higher porosity, and uniform size and shape, along with any desired thickness and a high length-to-diameter ratio. Such plates are ideally suited for use as a medium for various types of filters where removal of contaminants sized in the lower micron range is desired. Size and distribution of the holes in the plate are precisely controllable, enabling separations of materials of specific sizes.

Abstract: Metal carbide supported polycrystalline diamond (PCD) compacts having improved shear strength and impact resistance properties, and a method for making the same under high temperature/high pressure (HT/HP) processing conditions. A sintered polycrystalline cubic boron nitrite (PCBN) compact interlayer is provided to be bonded at a first interface to a sintered PCD compact layer, and at a second interface to a cemented metal carbide support layer comprising particles of a metal carbide in a binder metal. The supported compact is characterized as having a substantially uniform sweep through of the binder metal from the cemented metal carbide support layer, which sweep through bonds the sintered PCD compact layer to the sintered PCBN interlayer, and the sintered PCBN interlayer to the cemented metal carbide support layer.

Abstract: A method for preparing deagglomerated fibres and/or particles and for providing the fibres and/or particles with a substantially uniform protective coating, the fibres and/or particles being of a material selected from the group consisting of carbides oxides, nitrides, silicides, borides, metals and graphite, including SiC, TiC, ZrC, WC, NbC, AlN, TiN, BN, Si.sub.3 N.sub.4, MgO, Al.sub.2 O.sub.3, SiO.sub.2, ZrO.sub.2, Fe.sub.2 O.sub.3, Y.sub.2 O.sub.3, steel, tungsten, molybdenum and carbon, the method comprising (a) preparing an inorganic colloid sol, and (b) mixing the fibres and/or particles are deagglomerated and substantially homogeneously distributed. The fibres and/or particles, e.g. SiC whiskers provided with an aluminum oxide coating by treatment with an aluminum hydroxide-based sol, are used for the preparation of metal matrix composite materials, e.g. based on aluminum or an aluminum alloy.

Abstract: The present invention describes a plated component and plating method in which the plating adheres to the reinforcement particles on the surface of a composite component. This allows the component to be processed above 400.degree. C. without blistering. The plating method allows brazing, such as gold/tin and gold/germanium brazing, maintains hermeticity, and prevents corrosion over a sustained period of time. By utilizing an activator such as palladium, which can produce catalytic sites on which electroless nickel can be deposited, a component with a surface of exposed reinforcement particles can be plated to form a uniform surface without voids. It has been found that by using a combination of nickel-boron and a palladium activator, that Al/SiC composites can be plated with good adhesion when exposed to temperatures above 400.degree. C.

Abstract: It is the object of the invention to reduce the propagation of noises, in particular shifting noises, in mechanical transmissions. The invention consists in the use of a sintered shaped part formed in an individualized configuration as a noise-damped component, and in particular a gearwheel for a transmission. In the novel configuration, an axially symmetrical sintered shaped part has individual, approximately annular zones of material, for example, an inner rim zone close to the axis and an outer rim zone remote from the axis, the inner and outer rim zones having a high strength and being largely free from voids and a central region being highly porous and comparatively ductile.

Abstract: A closely adherent metal coating having a uniform thickness and substantially free from pinholes is formed on the porous surface of a bonded magnet to improve its oxidation and corrosion resistance without lowering its magnetic properties. The coating is formed by electroplating from an aqueous solution not containing chlorine, and having a pH of 5 or above. More particularly, the solution contains mainly nickel sulfate, an electrolyte in the form of an organic acid salt not containing chlorine, and a basic electrolyte not containing chlorine, and forms a nickel coating on the magnet surface.

Abstract: The present invention provides a multilayer composite sliding material with excellent seizure resistance property having a steel plate or a steel plate having surfaces plated with copper or the like; a bond layer having a thickness of 0.05 to 0.5 mm, formed on the steel plate, and made of a sintered powder material consisting of 5 to 16% Sn, 0 to 15% Pb, 0 to 0.5% P and balance essentially Cu; and an alloy layer having a thickness of 0.1 to 1.0 mm, formed on the bond layer, and made of a sintered powder material consisting of 5 to 16% Sn, 1 to 12% MoS.sub.2 and balance essentially Cu. In a modified form of the alloy layer, not more than 20% Pb, not more than 1% P or not more than 12% Ni may be added. MoS.sub.2 powder may be coated with Cu or Ni.

Abstract: The present invention resides in an optically black article comprising a substrate and an optically black coating adhered to the substrate. The coating has an absorptivity of at least about 0.92 and an emissivity of at least about 0.85, obtained by plasma spraying onto the substrate a composition comprising about 20% to about 50% by weight of a carbonyl metal and about 80% to about 50% by weight of a ceramic metal oxide. A preferred carbonyl metal is carbonyl iron. A preferred ceramic metal oxide is a yttria stabilized zirconia, having an average particle size in the range of about 10 microns to about 106 microns (140 mesh).

Abstract: A microstructurally toughened ceramic-particle-reinforced metal-matrix composite article is disclosed. The article exhibits a complex microstructure. The article exhibits high tensile strength, high elastic modulus and high impact resistance. A process for making the article is also disclosed. The process includes positioning structural elments within a metallic container to define one or more void spaces within the container, introducing a quantity of metallic particles or of a particulate mixture of metallic particles and ceramic particles into the void spaces, and consolidating the container, structural elements and particles to form the microstructurally toughened composite article.

Abstract: The invention concerns three-layer composites with their plastic core so uniformly enriched with an appropriate percentage by volume of a ferrosilicon with an appropriate particle size that the composites can be securely joined to each other and to sheets of metal alone by resistance welding. The property applies to composites with either a viscously elastic or an impact-resistant core.

Abstract: A light metallic composite material containing therein fine granular additives dispersed in a matrix of a light metallic material, which composite material has a light weight, high mechanical strength, and excellent characteristics such as high damping ability. The additives each have a density less than that of the matrix and heat resistance enough to withstand a heating temperature at which they are composited with the matrix. Preferably, the additives are each formed with a coating which increases mechanical strength and provides an electromagnetic characteristic different from that of the matrix. Preferably, the composite material is produced by heating a mixture of matrix powders and additives up to a temperature where only part of the mixture including no microspheres is softened but the mixture is adequately composited, an amount of additives being equal to 10% to 70% by volume of the matrix, and by forming the composited mixture into a desired shape and solidifying same.

Abstract: Superconductor wire, and methods of constructing same, including one or more filaments formed of submicron-particle superconductor powder each surrounded by an encapsulating sheath having a composite wall. The composite wall includes a ductile outer skin surrounding a relatively harder, higher yield strength inner wall portion. The harder, higher strength inner wall portion improves dimensional uniformity of the filaments as the wire is fabricated, with the potential for enhanced superconducting performance, while the ductile outer skin enhances metallurgical bonding between the outer skins of adjacent filaments, to ensure a homogenous, thermally conductive and normally electrically conductive matrix.

Abstract: A softer metal such as aluminum, or a metal forming a metal aluminide, or an alloy containing these metals is added to a metal aluminide composite during fabrication to promote easy consolidation of the metal aluminide matrix with the reinforcing phase. The metal aluminide may be titanium aluminide, nickel aluminide, or iron aluminide. The softer metal, the metal aluminide matrix, and the reinforcing phase are pressed together at a temperature above the softening temperature of the softer metal. The softened metal promotes flow and consolidation of the matrix and the reinforcement at relatively low temperatures. The composite is held at an elevated temperature to diffuse and convert the soft metal phase into the metal aluminide matrix. By consolidating at a lower temperature, cracking tendencies due to thermal expansion differences between the matrix and reinforcement is reduced. By consolidating at a lower pressure, mechanical damage to the fibers is avoided.

Abstract: Herein disclosed is a process for forming a dispersion alloy layer on a metallic base. The powder of an alloy system, which will separate into two or more multi-liquid phases at a temperature equal to or higher than its melting point and will solidify, when quenched, with its individual liquid phases being separate and in which the ratio of the minimum to the maximum specific weight its individual liquid phases is 0.3 or higher, such as the powder of any alloy system of Cu-Ni(15%)-Fe(8%)-Si(3%)-B(1.5%) is applied to a metallic base. The powder thus applied is then melting and agitated while being irradiated with a laser beam oscillated. The agitated melt of the powder is then quenched to solidify with the movement of the laser beam thereby to form on the metallic base the dispersion alloy layer in which the solid particles of at least one of those phase such as silicide particles are dispersed in the matrix of the remaining one of the phases.

Abstract: The invention relates to a process for producing a superconducting wire, using, e.g., Chevrel phases as superconductors, in particular PbMo.sub.6 S.sub.8. Until now, it was not possible to produce superconducting wires from such materials in a technically usable quality. According to the process of the invention, the superconducting Chevrel phase is loaded vacuum-tight into a molybdenum shell and the unit is advantageously sealed in another jacket made of steel. The powdery superconducting phase has an average grain size of less than 1 .mu.m. For shaping the superconducting wire, the unit is extruded in a first process step at temperatures between 1000.degree. and 1600.degree. C. and reduced in cross section in excess of 1:10, and subsequently further treated in a plurality of process steps by additional extruding and/or hot drawing.

Abstract: A composition for fixing a metal powder molding at sintering, which is used, in the case of disposing a metal powder molding formed by rolling a mixture of a metal powder and a synthetic resin-based binder on a metal base material and sintering the metal powder molding in a non-oxidizing atmosphere, by interposing between the metal powder molding and the base material, comprising a thermosetting resin composition containing a thermosetting resin as the essential component, the amount of the residual carbon of which after the completion of sintering is at least about 0.5% by weight.

Abstract: A vane compressor is provided which has a rotor formed therein with a plurality of axial slits opening in its outer peripheral surface in a circumferentially spaced arrangement, and in each of which a vane is received, and a plurality of cavities located between adjacent ones of the axial slits. The rotor is formed of at least two rotor elements integrally joined in an axial alignment, each rotor element being formed of a sintered alloy compact. The rotor elements are brazed along their end faces abutting against each other.

Abstract: Structure coated with graded ceramic material and methods of coating application are disclosed. Techniques for maintaining low stress to strength ratios across the depth of the coating are discussed.In one particular structure the coating is applied to a metal substrate (12) and comprises a metallic bond coat (14), a first interlayer (16) of metal/ceramic material, a second interlayer (18) of metal/ceramic material having an increased proportion of ceramic and an all ceramic layer. Modulation of the metal substrate temperature during the coating process establishes a desired residual stress pattern in the part.

Abstract: A method of producing a rotary dresser include forming a core piece of an iron-base powder and filling in tungsten or like metal powder between the core and an outer mold member containing diamond grit or the like. The construction is then heated to melt and infiltrate a metal alloy, such that a network structure is formed about the powdered metal particles. In a further embodiment, the metal materials may be arranged in concentric form about a metal bushing such that the bushing is included in the final structure.

Abstract: A method for making a drill bit and product resulting therefrom in which carbide elements are coated with carbide and nitride materials such as those of titanium as by chemical vapor deposition after which the elements are cast in molten steel.

Abstract: An ultrasonic sound absorbing material capable of operating at high temperatures and pressures, said material comprises a dense, rigid, permeable material such as sintered metal filled with a viscous fluid.

Abstract: An improved heat exchanger for high energy laser mirrors is provided which comprises one or more sections each hot pressed into a desired configuration to define coolant passageways, and subsequently stacked and joined by a suitable means such as diffusion bonding. A surface of one of the sections may either support a laser mirror faceplate or be finished to provide the desired laser mirror surface.

Abstract: A tubular filler rod or filler wire the metal sheath of which is composed of two members, to wit, an outer seamless tube and an inner tube consisting of a strip bent into tube shape and confining a compacted powder core. Also, a method of manufacturing a tubular, powder-cored filler rod or filler wire in which a metal strip is bent to form a trough which first is fitted with a powder composition and then closed to form a tube enclosing a core of the powder composition; the tube is slid into a second, seamless tube which is then submitted to a cold-drawing operation.

Abstract: Dual coated erosion resistant metal or ceramic structures are provided having an interior adherent indicating metallic or ceramic layer containing a UV sensitive phosphor and an exterior ceramic or metallic protective coating. A method of making such dual coated structures also is provided involving the plasma or flame spraying of blends of particulated metal powder or metal oxide powder and a metal oxide UV sensitive phosphor onto the surface of the metal or ceramic structure.

Abstract: A tubular filler rod or filler wire the metal sheath of which is composed of two members, to wit, an outer seamless tube and an inner tube consisting of a strip bent into tube shape and confining a compacted powder core. Also, a method of manufacturing a tubular, powder-cored filler rod or filler wire in which a metal strip is bent to form a trough which first is fitted with a powder composition and then closed to form a tube enclosing a core of the powder composition; the tube is slid into a second, seamless tube which is then submitted to a cold-drawing operation.

Abstract: A liquid phase sintered body for brazed joints having a multiplicity of pores, grooves and/or indented patterns formed on a desired surface. The liquid phase sintered body is produced by a method comprising the steps of forming a compact body of a mixture of a hard refractory material, such as carbides, nitrides, oxides, borides and silicides mixed with cementing metal in powder form, placing on the desired surface any one of coarse grains, strands or plates of a metal having a diameter or a thickness over ten times as great as the grain size of the cementing metal, and sintering the compact body under conditions suitable for melting the coarse grains, strands and/or mesh of strands or plates after densification of the compact body has been completed or substantially completed. The metal forming the coarse grains, strands or plates must have a melting point which is more than 50.degree. C.