Abstract: A hollow cylindrical target for a cathode sputtering unit with a hollow cylindrical sputtering material and a target holder. The sputtering material has an annular cross section and concentrically surrounds a longitudinal segment of the target holder. The target holder extends out of the sputtering material at least at one end of the target to allow connection to the cathode sputtering unit. The at least one part of the target holder that extends from the sputtering material is a single part that can be detached from the target by at least one screw fitting.

Abstract: In the production of precision castings by centrifugal casting with controlled solidification, a melt is cast under vacuum or shield gas into a pre-heated mold (15) with a central gate (19) and several mold cavities proceeding from the gate toward the outer circumference (Da) of the mold (15). To prevent the formation of shrinkholes and porous areas in the castings, to save energy, and to increase the production rate, the mold (15) is operated at temperatures which decrease from the inside toward the outside. The mold consists of a material or material combination with a coefficient of thermal conductivity lower than that of copper. Before the melt is poured, the mold (15) is heated, starting from the gate (19), by a heating device (20), which projects into the gate, so that the gate (19) reaches a temperature which is a function of the material being cast. Heating is carried out at a rate sufficient to produce a temperature Gradient of at least 100° C., preferably of 200-600° C.

Abstract: A method for producing [Ir(cod)Cl]2 is proposed, involving a) Dissolving IrCl4.nH2O and/or IrCl3.nH2O and/or H2IrCl6 in water; b) Adding an alcohol and cycloocta-1,5-diene and c) Stirring the solution at the boiling temperature, characterized in that in step b) at least one alcohol is used having the formula R—OH wherein R=CnH2n+1 and n=3−9, especially isopropanol.

Abstract: A hydrogen permeation membrane including a niobium alloy with 5-25 wt. % of at least one element from the group consisting of palladium, ruthenium, rhenium, platinum, gold, and rhodium.

Abstract: A gold-free platinum material that is dispersion-strengthened by small, finely dispersed particles of base metal oxide. The base metal is either 0.01-0.5 wt. % Sc or a mixture/ alloy of Sc and at least one metal from the group consisting of Zr, Y, and Ce with a total base metal content of 0.05-0.5 wt. %.

Abstract: The invention relates to a metal component for discharge lamps, having a support of niobium or tantalum or of alloys based on niobium and/or tantalum, as well as a discharge lamp. The present invention is addressed to the problem of increasing the resistance to oxidation and corrosion of metal components having a support of niobium or tantalum or of alloys based on niobium and/or tantalum which are disposed in or on discharge lamps. The problem is solved according to the invention in that the support has a coating of one or more single layers which is formed of at least one noble metal and/or from a noble metal alloy.

Abstract: An injection-molded plastic part having a first thermoplastic component and a second thermoplastic component. Areas consisting of the first thermoplastic component are present at least on one surface of the injection-molded plastic part next to areas of the second thermoplastic component. The first thermoplastic component is an LCP and the second thermoplastic component is a syndiotactic polystyrene.

Abstract: An SiO2-glass bulb with at least one current lead-in made of a gas-tight composite material, such that the composite material consists of a noble metal with a melting point >1,700° C. and SiO2 and is at least partially coated with a layer of SiO2. The noble metal and the SiO2 are homogeneously distributed in the composite material. The noble metal content of the composite material is ≧10 vol. % to ≦50 vol. %, and the SiO2 coating covers the composite material at least in the region of the connection with the SiO2-glass bulb.

Abstract: A method for the manufacture of a leadless substrate with a basic body made of copper or copper base alloy, a solder layer applied to at least one portion of the basic body and made of metals belonging to the group of gold, gold alloy, silver, silver alloy, palladium, and palladium alloy, as well as an intermediate layer arranged between the basic body and the solder layer and made of nickel or nickel alloy, wherein the solder layer consists of at least two separate layers made of different metals and wherein the intermediate layer and the separate layers are deposited by electroplating, characterized in that at least one separate layer is made of silver or silver alloy.

Abstract: A process for producing a coating on a refractory structural member, in which a noble metal alloy is applied as a coating material to the refractory structural member. The noble metal alloy contains, among other constituents, an oxidizable substance, which includes boron and/or phosphorus and/or antimony and/or arsenic. The refractory structural member and the coating are heated at least once in an oxygen-containing atmosphere to a temperature T that is greater than or equal to the liquidus temperature TL of the noble metal alloy The oxidizable substance is oxidized during this heating process, and the oxide that has formed is at least partially vaporized. The temperature T is maintained until the proportion of oxidizable substance in the coating is <0.1 atomic percent, and the coated refractory structural member is then cooled.

Abstract: A method is proposed for producing gold of high purity from noble metal solutions containing nitrate, with the following steps: a) Nitrate destruction in the noble metal solution, b) Addition of a gold ion reducing acid Fe2+ solution whose H+ ion concentration amounts to at least 4 mol/l, to the solution prepared in step a), whose H+ ion concentration amounts to at least 4 mol/l.

Abstract: A method is described for the preparation of platinum wherein first an aqueous solution of a hexahalogenoplatinate is passed through a cation exchanger and then the solution obtained, at a temperature T>+30° C. and a pH of 0 to 4, is reduced by a reducing agent to precipitate in the form of a platinum sponge.

Abstract: A hybrid plug housing with a base body of plastic, with a conductor array installed permanently therein, where the contacts of the conductor array have a connecting area and a plug-in area. The plug contacts are surrounded laterally by a plug shell of the housing. The plug shell has an opening to accept a mating plug component on the end facing the plug-in direction. A process for the production of the hybrid plug housing makes it possible for the positions of the individual components to be adjusted precisely with respect to each other. The base body and the plug shell are not assembled until after plastic has been injected around the conductor array, which is held together by webs, and until after the plastic has cooled and the webs have been removed.

Abstract: A method for producing a tubular hydrogen permeation membrane comprising: (a) adhering at least one layer containing palladium, at least one palladium alloy, platinum, or at least one platinum alloy to a first surface of a plate having such first surface and a second surface disposed opposite to the first surface, the plate being of a metal or a metal alloy containing at least one metal from a group of the Periodic System of Elements selected from the group consisting of the fourth secondary group and the fifth secondary group, to form a layered plate; and (b) reshaping the layered plate into a tubular hydrogen permeation membrane having an inside wall, so that the layer adhered to the first surface is disposed on the inside wall of the tubular hydrogen permeation membrane.

Abstract: A radially expandable support structure is provided, for keeping open lumina within a body, in particular a blood vessel, having a tube-shaped body that has at least two partial structures, with a wall surface that extends between a first and a second end, which has several cut out areas, in particular, slits, which are essentially oriented parallel to the longitudinal axis of the tube-shaped structure. At least one partial structure (11) extends without interruption in the axial direction generally from the first end to the second end of the tube-shaped body. The first partial structure (1, 2) can be expanded at least in the radial direction and has at least one radial-expansion component. Individual radial expansion components (12, 13) are arranged as rings or in a ring shape, and the second partial structure (11) is almost rigid in the axial direction.

Abstract: A method is provided for manufacturing a welded shaped body of platinum material dispersion-hardened by finely divided small particles of base metal oxide, especially such a body provided with at least one inside wall, such as a tube. The base metal oxide is one or more oxides of the elements yttrium, zirconium and cerium. The method includes shaping and welding of at least one part, especially a sheet, of an alloy of platinum and base metal, to a preform body, e.g. a tube. The preform body is then subjected to heat treatment in an oxidizing medium until the minimum degree of oxidation of the base metal reaches 75 wt %. The preform body is then formed into the desired product.

Abstract: Fine wires of a gold alloy of 0.05 to 0.95 wt % platinum, palladium or a mixture thereof; 0.001 to 0.1 wt % mischmetal containing at least 50 wt. % of cerium; and 0 to 0.1 wt % of alkaline earth metal. The wire has a favorable strength-to-elongation ratio and is suitable both for wire bonding and for making the ball bumps of flip chips.

Abstract: For the profile kneading of workpiece in strand from (semiproducts) which are transported along a central axis into a working station (profile kneading machine) at least two dies situated opposite one another in pairs for working on the surface of the workpiece are driven by rams at their extremity remote from the axis; the rams are driven radially toward the axis by rolls (cylinders, balls) moving on a circular path relative to outer guiding surfaces of the rams; at the same time at least two pairs of dies, whose radial driving directions are displaced from one another by a given angle (90.degree.), are driven successively by the rolls in a radial direction by means of the guiding surfaces of the rams; the edge length of the dies in each working step is greater than the targeted edge length of the workpiece (semiproduct) that is to be worked.

Abstract: Fine-mesh warp-knit fabrics of noble metal-containing wires with high specific surface areas, having good mechanical stability, are produced by warp-knitting noble metal-containing wires to form closed stitches, such that the warp-knit fabric has at least 14 stitches per inch, and such that in at least one of the knit weaves forming the warp-knit fabric, the noble metal-containing wires are laid down over at least three stitch spacings.

Abstract: A process for making an indium-tin-oxide shaped body, comprising: (a) filling an indium-tin-oxide powder into a first flexible mold, the indium-tin-oxide powder having a specific BET surface of at most 3 m.sup.2 /g with a mean primary particle size of 0.03 .mu.m to 1.0 .mu.m and/or having a density of at least 40% of theoretical density after cold pressing at a pressure of 100 MPa and/or the indium-tin-oxide powder being made by reacting at least two reaction partners comprising a molten indium-tin-metal alloy as a first reaction partner and oxygen as a second reaction partner in a plasma arc in a plasma chamber provided with an inlet opening for the reaction partners and an outlet with a gas-supply device to obtain a material, and quenching the material at the outlet opening of the plasma chamber with a gas stream which cools the material at a cooling rate of 10.sup.5 K/s to 10.sup.8 K/s to +50.degree. C. to +400.degree. C.