Abstract: A low emissivity coating on a transparent substrate of glass or plastics material is produced by cathode sputtering a layer of silver and thereafter reactively sputtering an anti-reflection metal oxide layer over the silver in the presence of oxygen or an oxidizing gas, wherein a small amount of an additional metal other than silver is sputtered onto the silver before the overlying anti-reflection metal oxide layer is applied.The process produces a new low emissivity coated product comprising a glass or plastics substrate with a low emissivity coating comprising a silver layer, a small amount of additional metal dispersed non-uniformly in the silver layer and possibly extending over the silver layer, and an overlying anti-reflection metal oxide coating.

Abstract: A method of forming adherent metallized coatings on a substrate which is useful for the manufacture of printed circuit boards as well as other metal coated articles involves providing the substrate with a rubber-modified epoxy surface or coating, sputter etching at least 50 A. from the surface followed by vacuum depositing an adherent thin metal film of Cr, Ni, Ni-V alloy, Pt, Pd or Ti onto the substrate. Another metal layer is then provided over the adherent thin film.

Abstract: Method is provided for improving performance alloy structures improved in corrosion and erosion and wear resistance characteristics by the incorporation of an interdispersed phase and a ternary or quaternhary alloy of platinum, rhodium or palladium, the alloy base metal and an alloying element such as aluminum in the structure surface with the use of relatively less of the precious metals for a given depth of case by virtue of the conjoint incorporation of the interdispersed phase.

Abstract: An object of the present invention is a method for the anti-wear treatment of the surface of steel parts having a carbon content of at least 0.15% and the coating obtained thereby. The method is characterized by the fact that an addition of sulfur, by depositing of a metal sulfide for example, and a vapor-phase chromizing are carried out in sucession on the surface to be treated.The coating obtained is characterized by the presence of a layer of chromium sulfide on the surface and by the partial recrystallization of the underlying M.sub.7 C.sub.3 chromium carbide layer.The invention can be applied to any moving mechanical system which is subject to abrasion. The invention has importance because it increases the resistance to wear and the life of the system treated while limiting the wear of the untreated opposing part as a result of friction.

Abstract: The invention relates to a process of deposition of a coating of a gold compound on a solid substrate. In a vacuum chamber (1), the substrate is fixed on a first substrate electrode (2). A composite target (5) essentially consists of gold and at least one of the metal compounds, such as nitride, carbide and boride of the metals of group IV b of the periodic classification of elements and tantalum. A high-purity argon atmosphere at pressure ranging between 4.times.10.sup.-4 and 3.times.10.sup.-2 Torr is then established in the chamber. The deposition of the coating is then carried out by ionic deposition or evaporation in vapor phase at a given rate. The invention may find application to coat articles of jewelry or of watch cases.

Abstract: There are provided fiber reinforced structures formed of one or more layers of reinforcing fibers contained in an electroformed, superplastic, nickel-cobalt matrix.

Abstract: A magneto-optic memory medium is disclosed which is made up by an acryl resin substrate having strip-like grooves, a magneto-optic magnetization film disposed on the substrate and having an axis of easy magnetization perpendicular to its surface. The magnetization film is made of amorphous ferromagnetic material such as GdTbFe, GdTbDyFe, SmTbFe, GdDyFe, TbCo or the like. A reflective film is provided overlying the magneto-optic magnetization film.

Abstract: An improved sheet steel suitable for the production of containers and the like has a thin composite coating of nickel and zinc plated on both sides thereof. The steel substrate may be flat rolled blackplate and the composite nickel-zinc coating may be plated thereon by drawing a running length or strip of the steel through a nickel electroplating bath to which has been added the necessary concentration of zinc, and electrodepositing the two coating metals simultaneously and in the desired proportions. The coated steel sheet is particularly useful in forming drawn and ironed cans although it may be used for other purposes.

Abstract: A process, article produced therefrom, and compositions are described for the reception of electroless plating onto a non-catalytic metallic surface. The process comprises contacting the non-catalytic surface with a promoter composition containing ions selected from the group of nickel, cobalt, iron and mixtures thereof and a suitable reducing agent, and thereafter contacting the substrate with an electroless plating bath comprising hypophosphite for the metallic build-up.

Abstract: The invention represents an auto bumper with an exterior part which can be seen from the outside. The exterior part is made of stainless steel plate and an interior part is made of fiber reinforced plastics via a layer of aluminum or aluminum alloy.

Abstract: A composite laminate capable of exposure to high temperature differentials without damage, comprising a first layer, a second layer and an intermediate web interface layer of a low modulus metallic low density structure having a high melting point. The first layer is secured to the low modulus structure directly or through an intermediate composite layer, and the second layer is bonded or secured to the intermediate low modulus layer. The thermal strains caused by a temperature differential between the first and second layers are taken up without harmful effect by the intermediate low modulus web layer.

Abstract: Novel micro-throwing alloy undercoatings, multi-layer coatings containing a novel micro-throwing alloy undercoating and method of improving the corrosion resistance of ferrous metal articles are provided in accordance with the invention. The novel micro-throwing alloy undercoatings are applied as an initial layer over ferrous metal and comprise a layer of alloy having micro-throwing power, such as nickel-cadmium, nickel-zinc, iron-cadmium, iron-zinc, cobalt-cadmium, cobalt-zinc or a ternary or quaternary alloy containing iron, nickel or cobalt in combination with cadmium or zinc. The method comprises application, preferably by electroplating, of a layer of novel micro-throwing alloy undercoating directly over ferrous metal, optionally followed by one or more layers of metallic or organic coatings which further contribute to improved corrosion resistance.

Abstract: An improved magnetic record member having a nonmagnetic disk base with a mirrored surface, a magnetic-metal thin-film medium formed on the disk base; an intermediate layer composed of an oxide of a magnetic metal, a chromium oxide, or a phosphate formed on the film medium; and a layer of polysilicate or a metal alcoxide hydrolysis polymer formed on the intermediate layer.

Abstract: A method of applying solder to gold by applying a gold-tin intermediate layer to the gold and applying the solder over at least a portion of the intermediate layer. The method can be employed to produce a printed circuit unit composed of a printed circuit board, at least one gold member mounted on the board, a gold-tin intermediate layer bonded to at least a portion of the gold member, and solder bonded onto the intermediate layer.

Abstract: A laminated conductor includes a lower thin film of nickel-X alloy or pseudo alloy deposited upon a substrate containing silicon or upon a substrate intended for use as a magnetic bubble storage device. Upon the film of nickel-X alloy, a thicker film of gold is deposited as the conductive portion of the conductor. On the upper surface of the gold layer is deposited a thin film of nickel-X alloy. Failure of the conductor because of electromigration is reduced dramatically as compared with use of molybdenum instead of nickel in the laminated structure. The nonmagnetic nickel-X alloy does not interfere with magnetic fields or produce unwanted magnetic fields.

Abstract: A composite diaphragm for a speaker comprises a boron layer formed on a metal foil such as titanium foil, in which a layer of a low melting point metal such as aluminum or magnesium is interposed between the metal foil and the boron layer to provide high rigidity, high elasticity and high bonding strength between the metal foil and the boron layer.

Abstract: A dry process high sensitivity imaging film includes a solid, high optical density and substantially opaque film of dispersion imaging material deposited on a substrate. The film of dispersion imaging material comprises a plurality of separate layers of different and substantially mutually insoluble metal components having relatively high melting points and relatively low melting point eutectics, and interfaces between said layers having relatively low melting points.

Abstract: A method is described for reducing the defect density in a crystalline film grown on a substrate with which it has a substantial misfit. The principle of the method is to grow the film, not directly from the substrate, but from a layer of small islands previously deposited onto the substrate. The technique has been fully investigated for the growth of Ag (and then Au) films on NaCl, a substantial improvement in the quality of the overgrown film being obtained when an intermediate layer of Ni islands is deposited on the NaCl prior to the deposition of the Ag.

Abstract: High stability thin film resistors are made from an alloy comprising selected portions of nickel, chromium, and gold selected in a ratio to provide the desired temperature coefficient of resistance (TCR). The resistors are made by co-depositing gold with the nickel chromium alloy by a flash evaporation process. The evaporation process is carried out by feeding a nickel chromium wire, having a gold wire extending therealong to provide the desired composition, onto a heated tungsten strip within a vacuum system with substrates disposed in a position to obtain uniform deposition of the evaporated material thereon.

Abstract: The contact element is produced by ultrasonic welding one or more contact pieces onto a carrier, an intermediate layer in the form of a metal powder, for example aluminium, being interposed between the contact piece and the carrier prior to such welding in order to assist in the welding of contact pieces made of material which would otherwise be difficult to weld.

Abstract: A method whereby a surface of chromium metal electrodeposited on a zinc substrate from a trivalent chromium electrolyte is treated by contacting the surface with an aqueous solution at a pH of from 5 to 12 and containing a dissolved metal salt of a weak acid which does not form a soluble complex with zinc. Preferred salts are carbonates, phosphates and silicates of an alkali metal, e.g. sodium or potassium. Also disclosed is the product of said process comprising an article having a zinc substrate, a microporous electrodeposited chromium coating from 0.025 to 2.5 microns in thickness on said substrate, and a water-insoluble basic salt of zinc within the micropores.

Abstract: The disclosure teaches a method for joining metal-plastic laminates and a firmly bonded assembly prepared thereby. In accordance with the disclosed method, two sheet like metal-plastic laminates, each of which has at least one layered edge portion, are firmly bonded together at said edge portions.

Abstract: A magnetic record member for use in magnetic recording devices is disclosed. The record member comprises a non-magnetic alloy disk polished to a mirror surface, a non-magnetic alloy layer formed on the disk, a magnetic thin film medium formed on the surface of the alloy layer, and a protective polysilicate film layer formed on the alloy layer. In certain embodiments, an oriented lubricant layer is formed on the polysilicate film layer.

Abstract: This invention relates to space vehicles. It is concerned with solar absorbers consisting of a metallic or metallized substrate with a weak hemispherical emission factor coated with two layers consisting of a semi-transparent metallic layer adhering to the substrate and of an outer interference dielectric layer. The metallic layer is a layer of nickel/chromium alloy consisting of 60 to 83% by weight of nickel and of 40 to 15% by weight of chromium, and the dielectric layer is a layer of silicon monoxide, of zinc sulphide or silicon dioxide.

Abstract: A ceramic-metal composite laminate capable of exposure to high temperature differentials without damage, consisting of an inner ceramic layer, an outer metal layer and an intermediate interface layer of a low modulus metallic low density structure having a high melting point. The ceramic layer is secured to the low modulus structure directly or through an intermediate ceramic-metal composite, and the outer metal layer is brazed to the intermediate low modulus layer. Thermal strains caused by a temperature differential between the inner and outer layers are taken up without harmful effect by the intermediate low modulus layer.

Abstract: A method of manufacturing laminated panels or foils consisting of a lead sheet and a synthetic sheet by using lead alloyed with antimony and/or coating the lead sheet with an alloy of lead. Optionally a protective film serving as an adhesive may be applied onto the surface that is to be welded to the synthetic material. A novel compound material consisting of a lead sheet and a plastics sheet.

Abstract: A contact for a silicon device comprises a layer of gold on the silicon, and a layer of cobalt on the gold layer. The contact is made by depositing gold on the silicon, depositing cobalt on the gold and heating the structure at a temperature between about 300.degree. and about 370.degree. C in a reducing gas atmosphere.

Abstract: A protective sacrificial coating is provided for metal substrates, e.g. ferrous metal substrates, such as compressor discs or blades for jet engines, the sacrificial coating comprising an intermetallic compound of magnesium with a coating metal, the coating being anodic to the substrate metal, the coating being optionally covered with an adherent non-metallic overcoat of, for example, a conversion coating.

Abstract: Articles having a non-skid surface of a roughened character and substantial thickness embody a base sheet having a roughened surface with particles of grit bonded thereto by metal which has been solidified in place in contact with the grit particles and base sheet and further bonded in place by an overlaying layer of solidified metal.

Abstract: A solar absorber comprising a 1000 to 1500 A thick layer of lead sulfide on a thermally conductive base. The solar absorber reflects on the order of 97% of the infrared while absorbing between 90 and 95% of the solar radiation band.

Abstract: This relates to a multi-layer composite metallic sheet having a predetermined coefficient of thermal expansion for use as a heat sink and mounting arrangement when bonded to a ceramic substrate. Since copper has a coefficient of thermal expansion greater than that of ceramic and molybdenum has a coefficient of thermal expansion less than that of ceramic, layers of copper and molybdenum can be combined to provide a composite having a coefficient of thermal expansion equal to that of ceramic. To avoid a bimetallic effect, a core layer of a fused metal is sandwiched between two outer layers of the second metal.

Abstract: The contact element is produced by ultrasonically welding one or more contact pieces onto a carrier, an intermediate layer, for example of aluminium foil, being interposed between the contact piece and the carrier prior to such welding in order to assist in the welding of contact pieces made of material which would otherwise be difficult to weld.