Abstract: Disclosed herein are aluminide coatings. In one embodiment coatings are used as a barrier coating to protect a metal substrate, such as a steel or a superalloy, from various chemical environments, including oxidizing, reducing and/or sulfidizing conditions. In addition, the disclosed coatings can be used, for example, to prevent the substantial diffusion of various elements, such as chromium, at elevated service temperatures. Related methods for preparing protective coatings on metal substrates are also described.

Abstract: A metal housing (10) includes a first metal layer (11) and a second metal layer (12). The material of the first metal layer is selected from the group consisting of stainless steel, titanium and titanium alloy. The material of the second metal layer is selected from the group consisting of aluminum, aluminum alloy and magnesium alloy. The second metal layer is integrally formed with the first metal layer.

Abstract: A joining of a titanium material with an aluminium material, wherein the parts made of the two substances are connected with each other in a substance-to-substance manner. Preferably, the joining is effected by a laser beam or an electron beam.

Abstract: An impact resistant composite member is for at least one of armor plate and an impact resistant structure. The member comprises a body in plate form and a reinforcement structure located within the body. The body includes a metal alloy having a fine grain size of about 5 microns or less.

Abstract: A composite article includes a substrate including a first metallic material having a nominal composition, and a bond coat disposed on the substrate. The bond coat includes a second metallic material having the nominal composition of the first metallic material. A ceramic top coat is disposed on the bond coat.

Abstract: A brazing product for low temperature fluxless brazing comprises a filler metal-forming composition which melts in the range from about 380-575° C. The filler metal-forming composition comprises zinc optionally in combination with aluminum and/or silicon, and further comprises at least one braze promoter selected from nickel, cobalt, iron and palladium. The filler metal-forming composition may comprise a single layer or may comprise a number of distinct layers. The brazing product may take the form of a brazing preform or a brazing sheet or casting in which the filler metal-forming composition is deposited on a non-consumable substrate. The substrate may preferably comprise aluminum or an aluminum alloy, but may instead be comprised of one or more metals other than aluminum.

Abstract: A method of forming a structure useful in all forms of deposited metals, elemental metals, metal alloys, metal compounds, metal systems, including refractory metals such as tungsten and tantalum is provided. The structure generally comprises a substrate, a first layer formed atop the substrate, and a second layer formed atop the first layer. The first layer comprises a metal, which can be chromium, gold, platinum, aluminum, nickel, or copper. The second layer comprises a metal, elemental metal, metal alloy, metal compound, or metal system comprising a refractory metal such as tungsten or tantalum. The substrate can be a silicon, quartz or glass, metal, metal oxide or nitride.

Abstract: A composite element comprises:(a) a metal or metal alloy component having an elastic modulus that decreases with increasing temperature in a temperature range; and (b) sufficient amount of a shape memory alloy component having an elastic modulus that shows an increase in elastic modulus with increasing temperature in the said temperature range, such that the elastic modulus of the composite element does not fall substantially as the temperature is increased across the said temperature range. An article comprising such a composite element is suitable for use in high temperature applications, including motor vehicle components.

Abstract: The present invention generally discloses the use of a nanostructured non-silicon thin film (such as an alumina or aluminum thin film) on a supporting substrate which is subsequently coated with an active layer of a material such as silicon or tungsten. The base, underlying non-silicon material generates enhanced surface area while the active layer assists in incorporating and transferring energy to one or more analytes adsorbed on the active layer when irradiated with a laser during laser desorption of the analyte(s). The present invention provides substrate surfaces that can be produced by relatively straightforward and inexpensive manufacturing processes and which can be used for a variety of applications such as mass spectrometry, hydrophobic or hydrophilic coatings, medical device applications, electronics, catalysis, protection, data storage, optics, and sensors.

Abstract: A diffusion barrier alloy film has a diffusion barrier layer which has more excellent diffusion barrier properties than an Re—Cr alloy film, and can stand usage at higher temperatures (e.g., 1150° C. or higher). The diffusion barrier layer 18 is made of an Re—W alloy ? phase containing 12.5 to 56.5% of. W in terms of atomic composition and the remainder of Re excluding unavoidable impurities. A metal base 10 has a surface coated with a diffusion barrier layer 18. If required, the diffusion barrier layer 18 has a surface coated with a diffusion alloy layer 20 containing 10% or greater and less than 50% of Al, Cr, or Si in terms of atomic composition, providing a high-temperature apparatus member.

Abstract: The disclosed subject matter relates to a metal multi-layered film structure that includes two types of metal films including first metal films and second metal films alternately formed on a resin substrate. The first metal films can be composed of an aluminum-based material having a film thickness between 0.7 nm and 20 nm. The second metal films can be composed of a metal selected from the group consisting of stainless steel-based materials, nickel-based materials, cobalt-based materials, titanium-based materials and chromium-based materials, having a film thickness ranging from 1 nm to 20 nm. This metal multi-layered film structure can be manufactured through a method of sputtering. The metal multi-layered film structure is suitable for an extension reflector for vehicular lamps.

Abstract: Disclosed herein is a hard coating film of laminate type which comprises more than one layer of a first kind, which has a composition represented by the formula (1a) below and a thickness of 1 to 80 nm, and more than one layer of a second kind, which has a composition represented by the formula (2a) below and a thickness of 1 to 80 nm, the layers being placed alternately one over another. (Cr(1?a)Ala)(C(1?x)Nx) ??(1a) (Zr(1?k)Hfk)(C(1?y)Ny) ??(2a) where each subscript denotes the atomic ratio specified below. 0.2?a?0.8 0.7?x?1 0?k?1 0.5?y?1 The hard coating film has outstanding high-temperature characteristics.

Abstract: A titanium alloy having excellent high-temperature oxidation and corrosion resistance is disclosed which comprises, by mass, Al: 0.30–1.50%, and Si: 0.10–1.0%. Preferably, amass ratio Si/Al is not less than 1/3. More preferably, the titanium alloy further comprises Nb: 0.1–0.5% by mass. The titanium alloy is useful as an exhaust system material for a vehicle or a motorbike, which enhances corrosion and high-temperature oxidation resistance, while utilizing inherent lightness and corrosion resistance of an original titanium alloy without impairing economy and workability.

Abstract: The present invention relates to an electrically conductive element for an electrochemical cell comprising an electrically conductive corrosion-susceptible metal substrate having a surface susceptible to passivation by forming oxides in the presence of oxygen. The surface is treated to remove any oxides present, and then is overlaid with an electrically conductive corrosion-resistant coating comprising one or more elements from Groups 4, 5, 10, or 11 of the Periodic Table, and then a corrosion-resistant electrically conductive polymer-based coating. The underlying substrate thus has improved corrosion-resistance while maintaining electrical conductivity. Other preferred aspects of the present invention include methods of treating the electrically conductive contact element to resist corrosion while still maintaining electrical conductivity.

Abstract: A chemically processed steel sheet comprises a steel base coated with an Al—Si alloy plating layer, whose Si content is preferably adjusted to 5–13 mass % as a whole and to 7–80 mass % at a surface, and a converted layer generated on the surface of the plating layer. The converted layer contains both soluble and scarcely-soluble compounds. The soluble compound, such as a manganese oxide or hydroxide, or a valve metal fluoride, is once dissolved into water in an atmosphere and then re-precipitated as scarcely-soluble compounds at defective parts of the converted layer. The scarcely-soluble compounds act as a barrier for corrosion prevention of a base steel. Due to the re-precipitation, i.e., self-repairing faculty, excellent corrosion resistance of the converted layer is still maintained even after defects are introduced therein during plastic deformation of the steel sheet.

Abstract: Disclosed is a heat-resistant Ti alloy material excellent in high-temperature corrosion resistance and oxidation resistance, which comprises a base made of a heat-resistant Ti alloy and a surface layer formed on the surface of the base. The surface layer has a multilayer structure including an inner layer and an outer layer. The inner layer has three coexistent phases consisting of a ? phase, a ? phase and a Laves phase in the phase diagram of a Ti—Al—Cr based alloy, and the outer layer is made of an Al—Ti—Cr based alloy having an Al concentration of 50 atomic % or more.

Abstract: Oxidation protection of a titanium-based alloy is provided with improved fatigue properties by a titanium aluminide coating of between 2 to 12 microns by diffusing the Al into the Ti at a temperature below the melting point of the Al. The coating is gas deposited and protects the titanium-based alloys from oxidation at high temperature utilization.

Abstract: A data storage medium includes a haze-prevention layer between a heat-resistant thermoplastic substrate and a reflective metal layer. The haze-prevention layer includes a metal having a tensile modulus of at least about 15×106 pounds per square inch. The data storage medium resists hazing of the reflective layer at elevated temperatures.

Abstract: A reflective article useful, for example, in automotive headlights includes a haze-prevention layer between a heat-resistant thermoplastic substrate and a reflective metal layer. The haze-prevention layer includes a metal having a tensile modulus of at least about 15×106 pounds per square inch. The article resists hazing of the reflective layer at elevated temperatures.

Abstract: (1) A titanium material composed of a substrate of pure titanium or titanium alloy and an aluminum-containing layer formed thereon having a thickness no smaller than 1 ?m and containing no less than 90 mass % aluminum or aluminum plus silicon. (2) A titanium material composed of a substrate of pure titanium or titanium alloy and an aluminum-containing layer formed thereon having a thickness no smaller than 1 ?m and containing no less than 90 mass % aluminum or aluminum plus silicon, with a layer of Al—Ti intermetallic compound interposed between them. (3) A titanium material as defined in (1) wherein the substrate contains 0.5-10 mass % aluminum. (4) A titanium material as defined in (1) wherein that surface of the substrate with which the aluminum-containing layer is in contact contains 20-50 atomic % nitrogen. (5) A titanium material as defined in (1) wherein a layer of aluminum nitride is formed in the interface between the substrate and the aluminum-containing layer.

Abstract: Cookware having improved uniform heat transfer over the entire cross section thereof, the cookware formed from a multi-layered composite metal having a layer of titanium roll bonded at or near the core of the composite. The titanium layer is roll bonded to layers of aluminum which, in turn, is roll bonded to layers of stainless steel. The layer of stainless steel adjacent to the cooking range may be a ferritic stainless steel if induction-type heating is desired. The multi-layered composite is also suitable for making a sole plate for an iron. Both the cookware and sole plate may include a non-stick surface applied thereto.

Abstract: It is disclosed a bond or overlay MCrAlY-coating for the use within a high temperature environment for the protection of the base alloy of turbine blades and vanes. The MCrAlY-coating having a ? or ?/??-structure comprises a dispersion of ?-NiAl and/or ?/?-MCrAlY particles. This provides a reservoir of aluminum reservoir to coatings wherein the reservoir replenish the aluminum lost due to oxidation and interdiffusion during service. The ?-NiAl and/or ?/?-MCrAlY is the aluminum reservoir and is applied by mixing appropriate powders with ? or ?/?? powders.

Abstract: A coated article having a high resistance to particle-impact damage has a substrate, and a layered coating overlying the substrate. The layered coating includes a substantially continuous quasicrystalline layer, and a substantially continuous ductile metallic layer in facing contact with the quasicrystalline layer. The coated article is preferably used in applications where it is subjected to particle-impact conditions.

Abstract: A magnetic recording medium containing a B-2 structured ruthenium-aluminum underlayer comprising a (200) crystallographic orientation with a thickness from about 50 ? to about 800 ?, and a magnetic layer with a Co(11.0) crystallographic orientation, and a method of making the same are disclosed. The medium deposited on mechanically textured and surface-oxidized NiP film has a relatively high remanent coercivity and a relatively high signal to medium noise ratio even at low OR-Mrt.

Abstract: A low cost aluminide process for moderate temperature applications. A gas turbine engine component is cleaned and coated with a layer of metal, generally aluminum, containing paint. The metal containing paint layer is heated to a first temperature for a first period of time in an air environment to volatilize the solvents in the paint. The metal containing paint layer is heated to a second temperature for a second period of time in an oxygen-free atmosphere to volatilize the solvents in the paint. The now metal layer and component are heated to a third temperature for a third period of time to interdiffuse the metal and the metal of the component. The component and diffusion layer are then cooled to ambient temperature.

Abstract: A low cost chromide and chromide/aluminide process for moderate temperature applications. A gas turbine engine component is cleaned and coated with a layer of metal, generally chromium or chromium and aluminum, containing paint. The metal containing paint layer is heated to a first temperature for a first period of time in an air environment to volatilize the solvents in the paint. The metal containing paint layer is heated to a second temperature for a second period of time in an oxygen-free atmosphere to volatilize the solvents in the paint. The now metal layer and component are heated to a third temperature for a third period of time to interdiffuse the metal and the metal of the component. The component and diffusion layer are then cooled to ambient temperature.

Abstract: A thin film based nanoporous alumina template has been developed which allows the in situ removal of an electrically insulating alumina barrier layer at the pore bases. This barrier free nanoporous system has great utility for electrodeposition of a wide variety of nanowire materials. An exemplary multilayer thin film precursor is provided comprising Al (anodization layer), Ti (diffusion barrier) and Pt (active electrode) on a Si substrate. Aluminum anodization in sulfuric acid with a subsequent applied voltage ramping program produces a Pt electrode at the base of the nanopores without the additional steps of alumina removal, barrier layer dissolution, and metal deposition onto the pore bottoms.

Abstract: A bond pad structure formed over a predetermined area of an IC substrate comprising quickly and easily removable redundancy and passivation layers upon lithography and plasma etching in a plasma containing Cl2, the bond structure comprises: a liner or lower metal layer formed on a predetermined area of the IC substrate; an aluminum-based metal layer formed on the liner layer as the last metal layer for bond purposes; a tungsten based redundancy layer formed on top of the aluminum-based last metal layer; and a passivation layer formed over the IC substrate and on the tungsten based redundancy layer.

Abstract: A coupler for joining an aluminum conduit to a steel or stainless steel conduit and which includes a main body which is formed from a first layer of aluminum and a layer of steel or an iron-chromium alloy which are explosively welded together, and wherein the main body has a first aluminum surface, and an opposite, second steel or iron-chromium alloy surface, and wherein the aluminum conduit is welded to the first aluminum surface, and the steel or stainless steel conduit is welded to the second steel or iron-chromium surface.

Abstract: An improved method for adhering a solid polymer component to a substrate is provided. An intermediate polymer adhesion promoting coating of metal oxide is applied to the substrate which enhances the adhesion of the subsequently applied solid polymer component to the substrate.

Abstract: A magnetic recording medium such as a magnetic disk includes a NiP or ceramic glass substrate on which a seedlayer is sputtered in a low pressure inert gas atmosphere, the seedlayer comprising a ternary or quaternary alloy formed from a B2 lattice type alloy such as NiAl, CoTi, CoAl, NiTi, FeTi, CoFe, CoHf, CuZn, CoZr, and MnAl. For quaternary alloys in which elements X and Y are added to the B2 type alloy, X can be chosen from one or more elements selected from the group consisting of Co, Ni, Fe, Cu, V, Mn, and Zn, and Y can be chosen from one or more elements selected from the group consisting of Al, Nb, Ta, Hf, Zr, Zn, Ag, Au, Pt and Pd. The resulting seedlayer preferably has an A2 lattice structure.

Abstract: (1) A titanium material composed of a substrate of pure titanium or titanium alloy and an aluminum-containing layer formed thereon having a thickness no smaller than 1 &mgr;m and containing no less than 90 mass % aluminum or aluminum plus silicon. (2) A titanium material composed of a substrate of pure titanium or titanium alloy and an aluminum-containing layer formed thereon having a thickness no smaller than 1 &mgr;m and containing no less than 90 mass % aluminum or aluminum plus silicon, with a layer of Al—Ti intermetallic compound interposed between them. (3) A titanium material as defined in (1) wherein the substrate contains 0.5-10 mass % aluminum. (4) A titanium material as defined in (1) wherein that surface of the substrate with which the aluminum-containing layer is in contact contains 20-50 atomic % nitrogen. (5) A titanium material as defined in (1) wherein a layer of aluminum nitride is formed in the interface between the substrate and the aluminum-containing layer.

Abstract: A plasma resistant article is composed of an aluminum alloy or anodized aluminum alloy substrate and a thermal sprayed oxide coating which contains yttrium, gadolinium, terbium, dysprosium, holmium or erbium and is endowed with specific characteristics. The article, which has a dense surface and does not require surface polishing, can be used as a component in equipment for manufacturing semiconductors and equipment for manufacturing liquid crystal displays and plasma displays.

Abstract: A shaped part or article of manufacture is formed of a selected gamma titanium aluminide alloy with outstanding mechanical properties which can be produced particularly economically. First, a semi-finished article is formed in a hot forming process with a degree of deformation of greater than 65%. Then the semi-finished article is shaped with the alloy being in a solid-liquid phase by applying mechanical forming forces during at least part of the shaping process.

Abstract: A self-healing tribological surface comprises a shape memory material. The self-healing tribological surface can be used for recovering a scratches and/or indentations in the surface. Processes for recovering scratches or indentations generally comprises forming a shape memory material onto the surface; scratching or indenting the surface; and heating an area about the scratch or indentation, wherein a depth of the scratch or the indentation decreases after heating as compared to the depth prior to heating.

Abstract: A method of forming a platinum aluminide diffusion barrier on a metallic substrate, eg a titanium alloy aerospace component, comprises applying to the metallic substrate a coating comprising particulate platinum and particulate aluminium in an organic carrier and performing a reaction treatment on the thus applied platinum and aluminium which causes the platinum and the aluminium to form an intermetallic diffusion barrier on the metallic substrate.

Abstract: A coated article having a high resistance to wear damage has a substrate, and a layered coating overlying the substrate. The layered coating includes a ductile metallic layer overlying and in facing contact with the substrate, and a protective layer overlying and in facing contact with the ductile metallic layer and including a mixture of a quasicrystalline metallic phase and a non-quasicrystalline ductile phase. The coated article is preferably used in applications where it is subjected to wear conditions.

Abstract: The invention relates to a ball limiting metallurgy stack for an electrical device that contains a tin diffusion barrier and thermo-mechanical buffer layer disposed upon a refractory metal first layer. The multi-diffusion barrier layer stack resists tin migration toward the upper metallization of the device.

Abstract: A chemically processed steel sheet comprising a steel base coated with an Al—Si alloy plating layer, whose Si content is preferably adjusted to approximately 5-13 mass % as a whole and to approximately 7-80 mass % at a surface, and a converted layer generated on the surface of the plating layer. The converted layer contains both soluble and scarcely-soluble compounds. The soluble compound such as a manganese oxide or hydroxide or a valve metal fluoride is once dissolved to water in an atmosphere and then re-precipitated as scarcely-soluble compounds at defective parts of the converted layer. The scarcely-soluble compounds act as a barrier for corrosion-prevention of a base steel. Due to the re-precipitation, that is self-repairing faculty, excellent corrosion resistance of the converted layer is still maintained even after defects are introduced therein during plastic deformation of the steel sheet.

Abstract: The present invention describes a method including providing a component, the component having a bond pad; forming a passivation layer over the component; forming a via in the passivation layer to uncover the bond pad; and forming an under bump metallurgy (UBM) over the passivation layer, in the via, and over the bond pad, in which the UBM includes an alloy of Aluminum and Magnesium.

Abstract: Cookware having improved uniform heat transfer over the entire cross section thereof, the cookware formed from a multi-layered composite metal having a layer of titanium roll bonded at or near the core of the composite. The titanium layer is roll bonded to layers of aluminum which, in turn, is roll bonded to layers of stainless steel. The layer of stainless steel adjacent to the cooking range may be a ferritic stainless steel if induction-type heating is desired. The multi-layered composite is also suitable for making a sole plate for an iron. Both the cookware and sole plate may include a non-stick surface applied thereto.

Abstract: A frame structure for a T/R tile module configured to transmit and receive electromagnetic radiation over a predetermined portion of the electromagnetic spectrum is provided. The frame component comprises at least one frame component formed as a single piece from a synthetic resin dielectric material. The frame component is configured to support a plurality of electrical connectors, and has a thin film coating configured to provide a ground connection and electromagnetic shield when the frame structure is incorporated into a transmit/receive module. A portion of the frame component is configured to interface with a portion of a T/R module when the frame component is incorporated into the T/R module, and the synthetic resin dielectric material provides the frame component with a range of compressibility that enables the frame component to provide the module with an effective ground connection over that range of compressibility.

Abstract: Oxidation protection of a titanium heat exchanger is provided by a titanium aluminide or solgel coating. The coating protects bare titanium and brazed surfaces of the heat exchanger.

Abstract: The present invention describes a method for fabricating an embossing tool or an x-ray mask tool, providing microstructures that smoothly vary in height from point-to-point in etched substrates, i.e., structure which can vary in all three dimensions. The process uses a lithographic technique to transfer an image pattern in the surface of a silicon wafer by exposing and developing the resist and then etching the silicon substrate. Importantly, the photoresist is variably exposed so that when developed some of the resist layer remains. The remaining undeveloped resist acts as an etchant barrier to the reactive plasma used to etch the silicon substrate and therefore provides the ability etch structures of variable depths.

Abstract: A titania-coated honeycomb catalyst matrix is provided for the ultraviolet-photocatalytic oxidation of organic pollutants in a flowing fluid. A honeycomb-shaped skeletal structure (12) has a thin, lightweight substrate (18) of metal or ceramic, typically an aluminum alloy, and a surface coating (20) of photocatalyst, such as titania. The photocatalyst (20) is bonded to the substrate (18) via a thin oxide layer (18′) on the substrate. The oxide layer (18′) may be grown on the substrate. The photocatalyst coating (20) is made by mixing (30) titania powder in a TiO2 sol-gel to form a titania slurry. The substrate with oxide layer is coated (30) with the titania slurry and then heat treated (31). The photocatalyst coating (20) is typically applied to substrate sheets (40, 60, 62) preformed for assembly into a honeycomb-shaped skeletal structure (12) having an array of parallel cells (46, 46′).

Abstract: An article protected by a protective coating includes a substrate made of a first nickel-base superalloy substrate material that is susceptible to the formation of a secondary reaction zone when overlaid by a diffusion aluminide coating or an aluminide overlay coating. A protective coating including a deposited coating at the substrate surface. The deposited coating is a second nickel-base superalloy different from the first nickel-base superalloy and which does not produce a secondary reaction zone when interdiffused with the first nickel-base superalloy. In one version, the deposited coating has a nominal composition, in weight percent, of about 3.1 percent cobalt, about 7.6 percent chromium, about 7.8 percent aluminum, about 5.45 percent tantalum, about 3.85 percent tungsten, about 1.65 percent rhenium, about 0.02 percent carbon, about 0.016 percent hafnium, about 0.015 percent boron, about 0.5 percent silicon, balance nickel and incidental impurities.

Abstract: This specification discloses a metal electrode that uses MoW (molybdenum-tungsten) alloy as its barrier layers and the method for making the same. Using MoW alloy as the barrier layer of a metal electrode can effectively solve the spiking and hillock problems occurred in aluminum electrodes. The MoW alloy barrier layer is thermally stable, preventing the resistance from rising due to the high-temperature manufacturing process. The metal electrode using the MoW alloy as the barrier layer can be prepared using the dry etching process. The resulting resistance is lower than other kinds of barrier layers. The MoW alloy barrier layer can be used in TFT metal electrodes for high-resolution and large-area displays.

Abstract: An exterior component for a portable timepiece having decorativeness and corrosion resistance and the portable timepiece are to be provided. In a double-layer clad material, the inside of a timepiece case is made of a titanium material and the outside is made of a pure aluminum material. In the pure aluminum material, alumite treatment is carried out from a surface to a given depth. A step portion is provided in the upper portion of the timepiece case, a glass fixing packing is fitted in the step portion, and glass is press-fitted here. A backside cover is fixed to an upper face of a movement. The movement with the backside cover is arranged so that a step portion for a face provided in the timepiece case is in contact with a part of the face. The backside cover is screwed into the timepiece case until the backside cover is in contact with a contact face of backside cover of the timepiece case, to be fixed to the timepiece case.

Abstract: A magnetic recording medium is constructed to include a substrate, a magnetic layer made of a Co or Co-based alloy, and an underlayer disposed between the substrate and the magnetic layer. The underlayer is made of an ordered intermetallic material of FCC L12 or FCT L10 crystalline structure.

Abstract: A method of producing an ohmic contact to p-type silicon carbide comprising two layers, the first one comprising nickel silicide and the second one comprising titanium carbide is disclosed. The deposited layers are annealed to convert at least a part of deposited metals to nickel silicide and titanium carbide. The contact is formed by reaction between the metals and the semiconductor, and thus the in-situ simultaneous formation of metal silicide and carbide suppress the release of excess carbon at the contact interface. Noble metals may be deposited preferably in between titanium and nickel to improve the contact morphology.