Abstract: Solder paste consisting of 85 to 92% by weight of a tin-based solder and 8 to 15% by weight of a flux, wherein the flux comprises i) 30 to 50% by weight, based on its total weight, of a combination of at least two optionally modified natural resins, ii) 5 to 20% by weight, based on its total weight, of at least one low-molecular carboxylic acid; and iii) 0.4 to 10% by weight, based on its total weight, of at least one amine, and wherein the combination of the optionally modified natural resins has an integral molecular weight distribution of 45 to 70% by area in the molecular weight range of 150 to 550 and of 30 to 55% by area in the molecular weight range of >550 to 10,000 in the combined GPC.

Abstract: The invention relates to a method for producing a medical electrode, comprising the following steps: (i) providing a substrate; (ii) applying a composition onto the substrate, wherein the composition comprises (a) a non-aqueous solvent and (b) an organic iridium complex compound dissolved in the solvent; (iii) heating the composition, and thereby forming a noble metal layer on the substrate.

Abstract: Known catalyst systems for the catalytic combustion of ammonia to form nitrogen oxides consist of a plurality of catalyst gauze layers which are knitted, woven or braided from platinum-based precious metal wire, which form a catalyst package when arranged after one another when viewed in a fresh gas flow direction. In order to provide a catalyst system on this basis for use in a medium-pressure system, with which a yield of the main product NO comparable to the industry standard can be achieved despite the reduced precious metal use, according to the invention, the catalyst package is formed from a front assembly with three catalyst gauzes with a first average mass per unit area and a downstream assembly of catalyst gauze layers arranged after the front assembly and having a second average mass per unit area, wherein the average mass per unit area of the front assembly has a short weight in the region of 1.

Abstract: Described is a metal-insulator substrate, which provides a structuring of the metallization for direct cooling. Furthermore, a process for manufacturing this metal-insulator substrate is described.

Abstract: Additive manufacturing method for producing moldings comprising or consisting of an element selected from the group of refractory metals, wherein refractory metal powder having an oxygen content of at least 500 mol ppm is used for the additive manufacturing method.

Abstract: The present invention relates to a method for producing a metal-ceramic substrate. The method has the following steps: providing a stack containing a ceramic body, a metal foil, and a solder material in contact with the ceramic body and the metal foil, wherein the solder material has: a metal having a melting point of at least 700° C., a metal having a melting point of less than 700° C., and an active metal; and heating the stack, wherein at least one of the following conditions is satisfied: the high temperature heating duration is no more than 60 min; the peak temperature heating duration is no more than 30 min; the heating duration is no more than 60 min.

Abstract: A method for producing a PGM collector alloy comprising the steps of: (1) providing (a) copper and/or silver, (b) material, which is to be processed melt-metallurgically, in the form of at least one sodium and/or potassium aluminosilicate support equipped with at least one PGM, and (c) at least one compound selected from the group consisting of iron oxides, calcium oxide, magnesium oxide, calcium carbonate, magnesium carbonate, sodium carbonate, and potassium carbonate, (2) joint melting of the materials provided in step (1) at a temperature in the range of 1250 to <1450° C.

Abstract: One aspect relates to a process for preparing a processed filament, including provision of a filament, including a segment. At least in the segment, the filament includes a core, including a first metal, a first layer which is superimposed on the core, and includes a polymer, and a second layer which is superimposed on the first layer, and includes a second metal. The segment of the filament is processed by interaction of the segment with at least one beam of electromagnetic radiation of a first kind. The electromagnetic radiation of the first kind has a spectrum with a peak wavelength in the range from 430 to 780 nm. Further, one aspect relates to a processed filament, obtainable by the process; a filament; an electrical device, including at least a part of the processed filament.

Abstract: One aspect includes a manufacturing method for a multielectrode system including providing several conductors, which are electrically conductive in their longitudinal direction; bundling the conductors at a proximal portion of the multielectrode system by means of a sheath surrounding the conductors to form a conductor bundle configured to be used as a lead of the multielectrode system; and providing several ring electrodes each surrounding one of the conductors at a distal portion of the multielectrode system and electrically connecting the ring electrodes and the conductors to form a multielectrode array of the multielectrode system. The multielectrode array is configured to be in a longitudinally extended or in a transversally expanded configuration.

Abstract: The invention relates to a wire for electrically contacting temperature sensors, the wire consisting of at least 50 wt % of a platinum composition, the platinum composition containing between 2 wt % and 3.5 wt % tungsten, up to 47.95 wt % of at least one precious metal selected from the group consisting of rhodium, gold, iridium and palladium and mixtures thereof, between 0.05 wt % and 1 wt % oxides of at least one non-precious metal selected from the group consisting of (i) zirconium, (ii) aluminum and (iii) zirconium and at least one element selected from aluminum, yttrium and scandium, and, as the remainder, at least 50 wt % platinum including impurities. The invention also relates to a temperature sensor having such a wire, and to a method for producing such a wire and such a temperature sensor.

Abstract: A clad wire for producing test needles or sliding contacts is provided herein, the clad wire having a wire core made of rhodium or a rhodium-based alloy, an inner cladding made of copper or silver or aluminum or a copper-based alloy or a silver-based alloy or an aluminum-based alloy, wherein the inner cladding covers or completely encloses the wire core on at least two opposite sides, an adhesion-promoting layer made of gold or a gold-based alloy, which is arranged between the wire core and the inner cladding, and an outer cladding made of a metal or a metal alloy having a greater hardness than the inner cladding, wherein the outer cladding encloses the inner cladding. A method for producing a clad wire and to a test needle having at least one clad wire or produced from a clad wire and a test needle array is also provided herein.

Abstract: The present invention relates to a method for producing a membrane for a fuel cell or electrolytic cell, in which (i) a liquid coating composition, which contains a supported catalyst containing precious metal and also contains an ionomer, is applied to a polymer electrolyte membrane which contains an ionomer, the ionomer of the liquid coating composition and the ionomer of the polymer electrolyte membrane each being a copolymer which contains as monomer a fluoroethylene and a fluorovinyl ether containing a sulfonic acid group, (ii) the coated polymer electrolyte membrane is heated to a temperature in the range from 178° C. to 250° C.

Abstract: One aspect relates to a method for producing a ring electrode, including providing an outer element including an outer tube; providing a first inner element, including a first inner tube having a first core made of a sacrificial material, a material of the outer element and a material of the first inner element having a similar microstructure to each other; providing a second inner element, including a second core made of a sacrificial material; forming a composite tube by arranging the first inner element and the second inner element inside the outer element, the first inner element and the second inner element being arranged eccentrically; drawing the composite tube in a longitudinal direction of the composite tube, the material of the outer element and the material of the first inner element retaining a similar microstructure; separating a composite tube disk from the composite tube; removing the sacrificial material of the first core; and removing the sacrificial material of the second core to obtain a co

Abstract: Disclosed is a layered body comprising a polymer comprising repeating units having the general structure —CH2—CHR1—COOR2— as defined herein, to a process for producing such a layered body, to a layered body produced by that process and to the use of a layered body for electrophysical measurements.

Abstract: The present invention relates to a monolithic spring contact ring, preferably for use in a medical electrode, comprising an outer ring and a plurality of elastically deformable belt-shaped spring elements, each comprising two curved connectors which form a continuously running, gap-free connection between the outer ring and the respective spring element, wherein the spring elements each extend continuously from the first connector to the second connector via a first bend, a central part of the spring element and a second bend, wherein the middle part comprises a front side which points in the direction of the central axis of the outer ring.

Abstract: The invention relates to a composition containing at least the two following components: a) a silver carboxylate, and b) a terpene, an ink for ink jet printing and a paste for printing with a screen printing method, wherein the ink or the paste, respectively, each contains the composition according to the invention. The invention also relates to a method for producing a pattern on a substrate, at least comprising the following steps: A) providing a substrate and a composition containing at least one silver carboxylate and one terpene; B) applying the composition to the substrate while preserving a precursor with the pattern; C) treating the precursor with the pattern according to a treatment step that is selected from the group consisting of: a) at a temperature of more than 200° C. for at least 10 minutes, wherein the treatment is preferably carried out in an atmosphere of air; b) a photonic sintering process; c) a combination of a) and b), wherein the substrate to which the pattern is applied is preserved.

Abstract: The present invention relates to a capacitor comprising i) an electrode body comprising an electrode material, wherein a dielectric layer comprising a dielectric material at least partially covers a surface of the electrode body; ii) a solid electrolyte layer comprising a solid electrolyte material that at least partially covers a surface of the dielectric layer, wherein the solid electrolyte material comprises a conductive polymer; iii) an anode contact that is in contact with the electrode body and that comprises copper, metal-plated copper or a copper-containing alloy; and iv) a cathode contact that is in contact with the solid electrolyte layer; wherein the capacitor further comprises at least one metal ion migration inhibitor. The present invention also relates to a process for the production of a capacitor, to a capacitor obtainable by such a process, to electronic circuit comprising the capacitor according to present invention and to the use of these capacitors in electronic circuits.

Abstract: One aspect is a feedthrough system including a) a feedthrough including i) an insulating body, ii) an electrically conductive pathway, wherein an end of the electrically conductive pathway is level with a surface of the insulating body, iii) an electrically conductive pad, wherein the electrically conductive pad is attached to the level end of the electrically conductive pathway, b) an electrical contact element including a metal, wherein the electrical contact element is attached to the level end of the electrically conductive pathway by a joint microstructure, or wherein, when the feedthrough includes an electrically conductive pad, the electrical contact element is attached to the electrically conductive pad by a joint microstructure. Furthermore, the present embodiment refers to a process for preparing the inventive feedthrough system, and to a device including the inventive feedthrough system.

Abstract: A silver sintering preparation in the form of a silver sintering paste comprising 70 to 95 wt.-% of coated silver particles (A) and 5 to 30 wt.-% of organic solvent (B) or in the form of a silver sintering preform comprising 74.5 to 100 wt.-% of coated silver particles (A) and 0 to 0.5 wt.-% of organic solvent (B), wherein the coating of the coated silver particles (A) comprises silver acetylacetonate (silver 2,4-pentanedionate) and/or at least one silver salt of the formula CnH2n+1COOAg with n being an integer in the range of 7 to 10, and wherein the at least one silver salt is thermally decomposable at >160° C.

Abstract: The present invention relates to a coated membrane containing: a membrane with a front and a rear face, a catalyst-containing coating which is provided on the front face of the membrane, the catalyst containing a support material which has a BET surface area of maximally 80 m2/g, an iridium-containing coating which is provided on the support material and contains an iridium oxide, an iridium hydroxide or an iridium hydroxide oxide or a mixture of at least two of these iridium compounds, wherein the catalyst contains iridium in a quantity of maximally 60 wt. %, and the coating provided on the membrane front face has an iridium content of maximally 0.4 mg iridium/cm2.