Abstract: An electric contact material containing Li oxide of 0.01 to 2.0% by weight when represented in terms of the amount of Li, oxide of at least one rare earth element of 0.05 to 0.18% by weight when represented in terms of the amount of the rare earth element, and Ag or Ag alloy as the remaining portion; an electric contact material containing Li oxide of 0.01 to 2.0% by weight when represented in terms of the amount of Li, at least one rare earth element of 0.05 to 0.18% by weight when represented in terms of the amount of the rare earth element, at least one element selected from a group consisting of In, Sn, Zn, Mn, Pd, Sb, Cu, Mg, Pb, Cd, Cr and Bi by an amount of 0.1 to 1.0% by weight (however, in the case of Zn and Mn, the amount is set less than 0.5% by weight), and/or at least one element selected from a group consisting of Fe, Ni and Co by an amount of 0.03 to 0.6% by weight, and Ag as the remaining portion; and an electric contact formed by using the above material.

Abstract: Disclosed herein is a ceramic superconductor comprising a ceramic superconductive member, and a high-conductivity metal layer covering the ceramic superconductive member. At least one portion of the metal layer having low electrical conductivity or low thermal conductivity. Also disclosed is a method of manufacturing a ceramic superconductor, comprising the steps of filling a ceramic superconductor or a precursor thereof in a high-conductivity metal pipe, thereby forming a composite member, rolling the composite member into a ceramic superconductor element of a desired shape, which comprises a ceramic superconductive member and a high-conductivity metal layer covering the ceramic superconductive member, performing a predetermined heat treatment on the ceramic superconductor element, and alloying a predetermined portion of the high-conductivity metal layer, thereby rendering the portion less conductive either electrically or thermally.

Abstract: A bimetallic or trimetallic electrical contact, only its shank portion being made of copper or copper alloy and being covered by a thin layer of silver or silver alloy for protecting the shank portion from environmental erosion. Said shank portion is preferably made by cutting silver-plated wire to a short piece.

Abstract: The present invention is a method of fabricating a wire and cable article capable of meeting stringent aerospace specifications and requirements, particularly that of low weight. The article generally comprises an inner conductive central core of one or more metal-coated fibers. The conductive core is preferably comprised of silver-coated aramid fibers having a silver coating of greater than 30 wt. % of the fiber, and generally several hundred weight percent thereof. The silver is coated upon aramid fibers to provide a cable having approximately half the weight and approximately 15 times the tensile strength of cables having equivalent resistance and/or equivalently sized cores of silver plated copper. The metal coating of the inventive process is accomplished in two steps: (a) a high tensile strength fiber comprising nylon, aramid, etc., is first plated with a first layer of metal such as copper, silver, etc.; and then (b) electrochemically plated with a second layer of metal.

Abstract: An electric contact material comprising 0.01 to 2.0 weight % of Li, 0.01 weight % or more to less than 0.2 weight % of at least one rare earth metal and the remainder being Ag. The electric contact material may further comprise 0.1 to 1.0 weight % of at least one element selected from a group consisting of In, Sn, Zn, Mn, Pd, Sb, Cu, Mg, Pb, Cd, Cr and Bi, however, for Zn and Mn, the amount is less than 0.5 % by weight; and/or 0.03 to 0.6 weight % of at least one element selected from a group consisting of Fe, Ni and Co. The electric contact material is excellent in arc resistance, wear resistance and lubricity in a small current region and is suitable as a material for a slide contact and a rotary slide contact.

Abstract: A metal electrode formed on an oxide superconductor for electric connection to the oxide superconductor, includes a first layer of Ag in direct contact with the oxide superconductor, and a second layer formed on the first layer. The second layer is formed of noble metal excluding Ag.The metal electrode can be formed by forming a first layer of Ag to cover a whole surface of the oxide superconductor layer, and forming a second layer of noble metal excluding Ag, to cover a whole surface of the first layer, thereby to form a double metal layer, and patterning the double metal layer so as to form a metal electrode composed of the double metal layer.

Abstract: Acrylic coating compositions containing silver metallic flake pigments are disclosed. The coatings are particularly adapted for use in automotive top coat systems as the base coat of a pigmented base coat/clear top coat coating system. The coating compositions have a hydroxyl content of less than about 8.0 wt. %. The resulting coating compositions when dried or cured to hard durable films do not exhibit discoloration associated with silver flake coatings.

Abstract: There has been provided an electrical component having resistance to oxidation and wear. The component has a copper or copper alloy substrate coated with a relatively thick layer of silver. A thin layer of gold may be deposited on the external surface of the silver coating layer to improve oxidation resistance, lubricity and to serve as a diffusion barrier.

Abstract: Gold, copper, silver, palladium or aluminum and their alloys, but preferably gold or gold alloy, which may be in the form of a wire, has deposited thereon or contained within the wire, a material such as metals or metal alloys which diffuse into the gold or into the other listed metals. With the passage of time and exposure to temperature the deposited metal or metal alloy continues to diffuse into the gold forming intermetallics with the gold and thereby causing the resistivity of the gold to increase and causing the gold to become progressively more brittle until such time as the gold wire ruptures at a stress point. At a given temperature, the elapsed time until rupture takes place depends upon the metal or metal alloys deposited on or contained within the gold. Lead, indium, gallium, tin, bismuth and aluminum and the alloys of these metals diffuse into and form intermetallics with the gold.

Abstract: The present invention provides a process for the electroless plating of easily reducible metals onto ultrafine, usually inert, particles. Such plating is achieved through careful and accurate control of such parameters as the feed rates of the various solutions, the control of pH of the solution, the temperature, pressure and the rate of agitation of the solution in which the plating is taking place. The plated ultrafine composite particles and the powders made from the particles produced by the process are also a part of the invention. There is also provided a metal article of manufacture consisting of a metal such as copper, silver, gold, ruthenium, rhodium, palladium, osmium and platinum with a plurality of spherical shaped ultrafine particles with a diameter of less than about 10 microns dispersed substantially evenly through the metal article.

Abstract: In a known process, oxide powders derived from the four-component systems yttrium-barium-copper-oxygen or lanthanum-strontium-copper-oxygen are mixed, pressed, sintered, ground and then heat-treated to produce a superconducting material which can be shaped to the desired cross-section. According to the invention, the powder is compacted by isostatic pressing and the blank so obtained is extruded at a temperature.gtoreq.500.degree. C. to form a metallic sheath with a deformation ratio of at least 50%. The extruded blank is then converted to wire or strip. The current-carrying capacity of the high-temperature superconductor is improved by the extrusion and the resulting alignment of the crystallites. The process can be implemented using known high-temperatures superconducting material.

Abstract: A mirror comprises a transparent glass sheet having a reflective metal coating deposited on the glass and a protective coating applied to the reflective coating. The protective coating comprises a paint having a residual internal stress S.sub.R equal to or less than 1 MPa, measured by the Cantilever method (as defined) at a temperature above its glass transition temperature. One suitable paint used in coating the mirror has the following composition:50% pigments:10% titanium dioxide45% barium sulphate25% talc15% lead pigment5% coloring pigment and carbon black15% binder100% epoxy resin ester with 45% castor oil35% solvents5% butanol and isobutanol95% xylene.The glass transition temperature of the paint is approximately 10.degree. C., the residual internal stress at 20.degree. C. is approximately 0.05 MPa and the Persoz hardness is approximately 120.

Abstract: Novel Ag-SnO electrical contact materials are disclosed, which are made of Ag alloys consisting of 5-20 weight % of Sn and a balance of Ag, the alloys having been prepared by melting and having been internal oxidized. Novel manufacturing methods are also disclosed, in which internal-oxidation is conducted in an oxygen atmosphere of 10 atm to 200 atm, and at a temperature of 750.degree. C. to 500.degree. C.

Abstract: In a sliding surface bearing for high loads, comprising a sliding layer (2), which has physically been applied in a vacuum directly to a bearing metal layer (1) and consists of a base material with finely divided inclusions (6), which are substantially insoluble in the base material at the operating temperature, substantial freedom from wear and a minimum tendency to mixing by rubbing are to be ensured in that all inclusions (6) have a lower hardness than the base material, which has been crystallized to form columns having a preferred orientation at right angles to the sliding surface (4).

Abstract: A silver colored metal alloy having improved tarnish resistance is disclosed, which is intended primarily for solid sterling jewelry and utensils and may also be used in silver plating, and does not easily tarnish and corrode. The alloy consists essentially of 80% to 92.5% silver, 4% to 9% palladium, 0% to 10% copper and 0.5% to 1% indium or zinc.

Abstract: A sintered diamond compact or high pressure form boron nitride compact with an improved brazability, suitable for use for wear resisting tools, cutting tools, drill bits, dressers and wire-drawing dies is provided. This compact comprises a compact part containing at least 20% by volume of diamond and/or high pressure form boron nitride and a cemented carbide substrate bonded directly or through an interlayer to the compact part, characterized in that the surface of the compact is coated, at least partly, with a thin film consisting essentially of at least one member selected from the group consisting of carbides, carbonitrides and nitrides and mixtures or solid solutions thereof of at least one element selected from the group consisting of silicon and Group IVa, Va and VIa of Periodic Table, and having a thickness of 1 to 20 .mu.m.

Abstract: A body, like a rocker arm, is disclosed which comprises a base body fabricated of a Ni-Cr-Mo type steel which contains less than 8 wt % Cr; and a ceramic tip soldered to a given portion of the base body. The soldering is so made as to increase the hardness of the base body.

Abstract: A ceramics-metal joined body which excels in high temperature characteristics and joint strength is formed by metallizing the surface of ceramics such as oxides, carbides, borides, nitrides, and composites thereof, and joining a metallic member through a solder to the metallized surface.

Abstract: An electrically conductive composite material is formed by dispersing in a matrix metal the other metal which is not solid soluble with the matrix metal. The other metal is finely divided to an extent of not excessively lowering the conductivity and is mixed in the matrix metal in a particle amount with which respective particles keep a mutual distance effective to strengthen the composite material, whereby the material is sufficiently improved in the mechanical strength and wear resistance and remarkably reduced in the high temperature deformation. Such conductive composite material can be obtained through a melt atomization.

Abstract: The invention provides a protected silvered substrate of the type comprising in combination, a substrate having a layer of substantially silver deposited thereon, a layer of aluminum oxide secured to the silver layer, and a layer of silicon dioxide secured to the layer of aluminum oxide, characterized by a layer of zinc sulfide between the layer of substantially silver and the layer of aluminum oxide to improve the adhesion of the alumina to the silver and front surface mirrors and low emissivity glass utilizing the same.

Abstract: A decorative mirror, including a transparent sheet; and at least one reflective silver layer comprised of silver deposited on one face of the transparent sheet, wherein a first silver layer of said at least one reflective silver layer has randomly distributed therein areas containing reaction products including non-metallic silver formed by reacting at least a part of the silver of said first silver layer with a substance which reacts with silver to provide reaction products including non-metallic silver so that the visible light reflectance of the decorative mirror is modified or interrupted.

Abstract: Joined ceramic and metal is characterized by ceramic and metal thermally joined through an intermediate layer. The intermediate layer is composed of 20-70% by weight of silver, 1-20% by weight of palladium, 10-60% by weight of nickel and 1-10% by weight of titanium. The joined ceramic and metal has sufficient joining strength both at normal temperature and at high temperature, because the joined ceramic and metal suffers little deterioration even at high temperature. Since the joined ceramic and metal has the characteristics of ceramic such as resistance to heat, corrosion and wear, it can be used for a structure operated at high temperature such as a gas turbine engine, a turbo charger rotor, a piston, a suction valve, and an exhaust valve.

Abstract: A composite comprised of a sintered matrix of spinel ferrite and a non-exposed continuous phase of elemental silver or Ag-Pd alloy ranging to 25 atomic % Pd is produced by co-firing a laminated structure of ferrite powder-containing tapes containing non-exposed metallization-forming material. The composite can be formed into a composite product which contains a continuous silver or Ag-Pd alloy phase with two end portions wherein only the end portions are exposed.

Abstract: Butt joints between materials having different coefficients of thermal expansion are prepared having a reduced probability of failure of stress facture. This is accomplished by narrowing/tapering the material having the lower coefficient of thermal expansion in a direction away from the joint interface and not joining the narrow-tapered surface to the material having the higher coefficient of thermal expansion.

Abstract: The invention provides a heat reflecting glass plate with a multilayer coating on a transparent glass plate. The multilayer coating comprises a film of indium-tin oxide (ITO) of Al=N deposited on the glass surface, a heat reflective film of Ag or Cu deposited on the ITO or AlN film to a thickness of 40-200 .ANG., a metal Zn film deposited on the Ag or Cu film to a thickness of 20-200 .ANG. and an ITO or AlN film as the outermost layer. The multilayer coating may further comprise at least one set of the Ag or Cu film, metal Zn film and ITO or AlN film such that each Ag or Cu film overlies an ITO or AlN film and is overlaid with a metal Zn film and that the outermost layer is an ITO or AlN film. The multilayer coating is excellent in the fundamental characteristics as a heat reflecting and transparent coating and also in moisture resistance.

Abstract: Solders for directly soldering together ceramic parts consisting essentially of 70 to 99% silver, 0.5 to 15% by weight indium or 0.5 to 10% by weight tin and 0.5 to 15% by weight titanium or zirconium, or mixtures thereof. These solders are very ductile, are workable at comparatively low temperatures and provide very firm bonding.

Abstract: A storage medium comprising a multilayer system with at least one magnetic layer, of magneto-optical storage material, and at least one reflector layer, with an index of refraction n<1, which is at least as thick as one of the magnetic layers. The maximum thickness of each of the magnetic layers is inversely proportional to its absorption coefficient, K. In the magneto-optical multilayer system of the present invention, a large Kerr angle O.sub.K is obtained.

Abstract: A musical instrument (for example, a flute) or a musical instrument segment (for example, a flute headjoint) having tubing made of a mechanically unitary laminated metal tube which has at least one layer of precious metal alloy bonded to another layer of metal alloy.

Abstract: Coating of crystalline metals (Ag, Au, Cu, Al) are formed on amorphous melic alloys (glassy metals) by cathode magnetron sputtering. The process can be used to produce new products such as copper coated amorphous metallic alloy wires for torpedo controls, shielding materials for electromagnetic waves, and anticorrosion coatings for Fe-metalloid magnetostrictive elements.

Abstract: A semiconductor die attach system adapted for attaching a semiconductor die to a substrate is provided. A metallic buffer component for dissipating thermal stresses is disposed between the substrate and the semiconductor die to dissipate stresses created from thermal cycling of the substrate and the die. The metallic buffer component is sealed between the substrate and the die with a silver-tin sealing composition. A bonding material may be used alone to bond a die to a substrate and dissipate stresses from thermal cycling.

Abstract: A multiple-layered metallic article useful for example, as costume jewelry having an intermediate "brightening layer" of bronze. A barrier layer selected from the group comprising palladium, tin, tin/zinc, rhodium, or platinum is disposed between the bronze "brightening layer" and a "top coat" layer to avoid migration of the copper component in the bronze layer to the outer surface of the article which, if left unimpeded eventually would result in a tarnishing effect to the article. As a result of the bronze intermediate layer, the article is hypo-allergenic with respect to those people having a skin sensitivity to nickel-plated or nickel-underplated metallic articles.

Abstract: A method for producing visually neutral high transmittance low emissivity coated articles comprising infrared reflective metal and antireflective metal oxide layers and an improved multiple layer coated article produced thereby comprising a high refractive index neutral metal oxide layer between the antireflective metal oxide layer and the infrared reflective metal layer are disclosed.

Abstract: A multiple-layer, high transmittance, low emissivity coated article is disclosed comprising at least two infrared reflective metal layers alternatingly combined with at least three metal oxide antireflective layers to produce a coating with superior low emissivity and low visible reflectance, especially for use to reduce heat load in automobiles.

Abstract: A multiple-layer, high transmittance, low emissivity coated article which can be subjected to high temperature processing such as bending, annealing, tempering, laminating or glass welding as a result of primer layers comprising metal and metal oxide is disclosed.

Abstract: A multi-layer of thin film for application to a transparent substrate such as glass provides excellent visible light transmission while controlling both near infra-red solar energy and far infra-red reflected energy. The film comprises a layer of sputtered zinc, tin, or bismuth oxide, a layer of sputtered silver or silver alloy, a layer of sputtered titanium or stainless steel and a final layer of zinc, tin, or bismuth oxide. The product exhibits a nominal visible light transmittance of 55% and a reflectance less than about 15% for incident light on the substrate (glass) side at visible light wavelengths and reflectance less than about 6% for incident light on the film side in the visible wavelengths. Emissivity is less than 0.15. A method of fabricating the product is also disclosed.

Abstract: Alumina is bonded to a metal by means of an active brazing filler alloy. When the metal to which the alumina is bonded is a high blushing metal, that is, a metal on which the active brazing filler alloy readily flows on the surface, a thin layer of a low blushing metal is disposed therebetween.

Abstract: A magneto-optical recording medium comprises a transparent substrate and a magneto-optical recording layer overlaid on the transparent substrate. The magneto-optical recording layer is formed by alternately overlaying a plurality of thin layers containing a rare earth metal-transition metal alloy for magneto-optical recording, and a plurality of thin layers containing at least one metal selected from the group consisting of gold, silver, lead, magnesium, copper, and iridium which are solid solution non-formable metals.

Abstract: Disclosed is a thin film magnetic recording medium which comprises a substrate and a magnetic layer formed on the substrate, the magnetic layer including a lamination composed of at least a grain size suppression film and a magnetic film formed on each of opposite sides of the grain size suppression film, the grain size suppression film being made of at least a grain size suppressing metal, the magnetic film being made of a cobalt magnetic material, and further disclosed is a method of producing a thin film magnetic recording medium which comprises the step of: dipping a substrate in an electroless plating solution for depositing a crystal of a cobalt magnetic material on the substate to form a first crystal film thereon; adding a metallic salt solution for suppressing growth of a grain size of a crystal structure into the electroless plating solution at least once after a predetermined period of time has passed from the dipping of the substrate under the condition that the substrate is dipped in the electrol

Abstract: A multilayer ceramic substrate with multilayered circuit patterns, the improvement in which internal conductors for wiring are formed by a Ag base conductive materials capable of being co-fired with multilayered green ceramic substrate sheets in an oxidizing atmosphere and external conductors electrically connected with the internal conductors are formed by a Cu base conductive material, the external Cu conductors being formed in such a manner so that a liquid phase of Cu-Ag is not formed at the interface of the Cu conductor and the Ag conductor. Further high reliable resistors of RuO.sub.2 or Bi.sub.2 Ru.sub.2 O.sub.7 type may be integrally formed onto and/or inside the substrate. In such an arrangement, problems or difficulties caused due to Ag migration, incomplete binder removal, solder leaching, etc., are eliminated and thereby there can be a multilayer substrate with a high reliability and a high pattern precision.

Abstract: An electrically conductive glass sheet used as a fog-resistant automotive window glass sheet. The electrically conductive glass sheet comprises a glass sheet, a pair of busbars, an electrically conductive thin film, and protective coatings. The busbars are formed in spaced relation on the surface of the glass sheet by baking electrically conductive paste printed on the surface of the glass sheet. The electrically conductive thin film formed on the surface of the glass sheet has ends or junctions connected to the busbars in overlapping relation to the surfaces of the busbars, the junctions being covered with the protective coatings. Since the junctions are covered with the protective coatings, good electric conductivity through the junctions is ensured for increased fog resistance, and variations from glass sheet to glass sheet are reduced.

Abstract: A method for depositing a protective coating by cathode sputtering of an alloy of aluminum and silicon in a reactive gas is disclosed. The sputtering target contains sufficient silicon to produce an amorphous coating; 6 to 18 percent silicon is preferred. Targets of approximately 88% aluminum and 12% silicon are especially preferred. Oxygen, nitrogen, compounds of oxygen and compounds of nitrogen are preferred reactive gases. A range of combinations of oxygen and nitrogen are particularly preferred. The method provides durable transparent coatings which may be used as an overcoating for a metal or dielectric coating to provide increased resistance to abrasion and corrosion. In particular, the protected coating may be a metal, dielectric or dielectric-metal-dielectric coating as used in double-glazed window units for buildings or vehicles.

Abstract: A process for producing silver-coated potassium titanate fibers comprises admixing the potassium titanate fibers with a silver ion solution containing a reducing agent. The resulting silver-coated potassium titanate fibers can, if desired, be provided with one or more additional metal coatings superimposed on the silver coat wherein the additional metal is other than silver.

Abstract: A ceramic-metal composite body including (a) a ceramic member, (b) a ferrous metal member bonded to the ceramic member, (c) an intermediate metallic member joined to the iron base member, and (d) an aluminum member bonded to the intermediate metallic member. The ceramic member and the aluminum member are integrally joined through the ferrous metal member and the intermediate metallic member.

Abstract: A combination ceramic sealing cover for a semiconductor package has a flat ceramic lid member with metallization applied as a foundation for a seal ring or frame portion. On the metallized layer is a gold-tin solder layer, in the form of either a solder ring that is tack welded on, or solder paste that is screened onto the base metallization and furnace reflowed.

Abstract: The article is provided with a coating resisting wear and corrosion, such coating being for the most part made of a precious metal or alloy of a precious metal, for example gold or an alloy containing gold.The coating is made up of a first layer of such precious metal or alloy thereof comprising discrete inclusions of a metallic compound such as titanium nitride. These inclusions are deposited along with the precious metal in vapor phase and distributed in a substantially homogeneous manner through the entire thickness of the layer, said thickness being equal to or greater than 0.4 .mu.m. A second layer of precious metal or alloy thereof is located between the article and said first layer.The article may be a watch case, a bracelet link or a piece of jewelry.

Abstract: The invention is directed to a substrate for manufacturing single crystal thin films wherein the substrate is a replica pattern of a monocrystalline or single crystal cleavage plane. Such replica pattern may be formed by pressing a material in a softened state against the cleavage plane of the single crystal, with subsequent hardening, and also, by subjecting the single crystal cleavage plane to vapor deposition or plating, and thereafter removing the formed layer from the single crystal cleavage plane.

Abstract: Methods are disclosed for the manufacture of optical conductive transparent windows and coatings having high transparency over a wide bandwidth combined with a large acceptance angle of incidence. Particulars for making windows and coatings with gold films of high transparency and low sheet resistance using specified nucleating and barrier layers are given. Examples include windows and coatings constructed for operation in the infrared and ultraviolet.

Abstract: To securely attach a narrow line width electrodeposited layer of gold to an underlying semiconductor structure a thin multiphase adhesion film of nitrogen-modified titanium is formed between a titanium nitride diffusion barrier layer and an overlying gold seed layer. This additional layer nitrogen-modified titanium layer provides a titanium base to ensure adhesion of the gold, yet contains sufficient nitrogen interstitially dispersed in the thin titanium film to prevent formation of unetchable gold-titanium compounds.

Abstract: A magneto optical recording medium comprising laminating a reflective layer, a dielectric undercoat layer and a hexagonal magnetoplumbite-type metal oxide magnetic layer on a substrate in order, characterized by that said magnetic layer is made an excellently C axis - orientated perpendicular magnetic film by putting the crystal misfit between said reflective layer and said dielectric undercoat layer formed thereon within .+-.30% and the crystal misfit between said dielectric undercoat layer and said hexagonal magnetoplumbite -type metal oxide magnetic layer formed thereon within .+-.30%, and thus various characteristics are widely improved.

Abstract: A magnetic recording member with a thin metallic antifriction protection overcoat formed over a magnetic layer. The overcoat is soft ductile and low stress and includes a metal selected from the group consisting of palladium, platinum, silver, gold, cadmium, indium, tin and lead or an alloy of one or more of these metals, and may include less than 20 percent by weight of antimony, bismuth, thallium or copper to improve wear resistance or impede corrosion. In one preferred embodiment the antifriction overcoat is an alloy of silver, lead and antimony formed with N layers where 10.ltoreq.N.ltoreq.40. The even layers are richer in a selected metal of the alloy than the odd layers in order to produce adjacent layers with different lattice or microstructural and associated mechanical properties so that there tends to be parallel shear between adjacent layers under shearing stress of head impact or friction.