Abstract: An apathogenic (antimicrobial and/or antiviral) coating of an object surface of an object with at least one anode layer having at least one anode material and at least one cathode layer having at least one cathode material is provided, wherein the layers are designed such that a galvanic element is formed in the presence of moisture. Constituents of the pathogens are thus oxidatively destroyed. This inhibits the multiplication of pathogens on the object surface. Efficient disinfection of the object surface is possible. The aspect provided with the coating is in particular a medical implant, for example a stent.

Abstract: An antimicrobial protective layer for protecting a substrate surface of a substrate has at least one antimicrobial reagent having a reagent coloring and at least one inert inorganic color pigment having a color-pigment coloring different from the reagent coloring, and the reagent concentration of the reagent in the protective layer and the color-pigment concentration of the inorganic color pigment in the protective layer being selected in such a way that a protective-layer coloring of the protective layer differs from the reagent coloring. Further provided is a substrate having the protective layer for protecting a substrate surface of the substrate. The object is, for example, an object of a public way of transportation or an object of an infrastructure installation used by multiple persons. In addition, provided is a method for producing the substrate having the protective layer.

Abstract: Various embodiments include a method for producing a structure with a cold gas spraying method comprising: providing a carrier with a carrier surface, to which the structure is to be attached by the cold gas spraying method by following a travel path; and providing an element with an element surface different from the carrier surface. The element is arranged in the travel path and/or the travel path is specified such that intersections of the travel path and/or interruptions of the structure are arranged on the element surface.

Abstract: Various embodiments of the teachings herein include a method for coating a membrane with a catalyst. An example method includes: positioning a membrane in a reactor chamber; coating the membrane on a first surface with a metal by atomic layer deposition; purging the reactor chamber to remove any metal remaining in the reactor chamber and not deposited on the at least one surface of the membrane; generating a plasma using a plasma source within the reactor chamber and contacting the plasma with the metal deposited on the first surface of the membrane; and purging the reactor chamber to remove volatile compounds generated during the reaction. A grid or a perforated plate separates the plasma source and the coated membrane.

Abstract: Various embodiments of the teachings herein include methods for coating a fiber material with manganese oxide. For example, a method may include: applying a manganese oxide precipitate to the fiber material; drying the manganese oxide precipitate; and oxidizing the manganese oxide precipitate using an oxygen plasma at a temperature below 200° C. forming a manganese(IV) oxide layer having at least 70% by weight with respect to the manganese oxide precipitate.

Abstract: Various embodiments of the teachings herein include a fiber material composite. The composite may include: a first region including metallic silver and manganese(IV) oxide for producing reactive oxygen species; and a second region configured to neutralize the reactive oxygen species.

Abstract: Various embodiments include a method for additive manufacturing of a building structure on using a simulation comprising: accessing a data set for the building structure describing the building structure in layers; calculating a global heat development in previous layers based a building history and heat input by an energy beam; determining a local heat development in a vicinity of the heat input; determining the process control based on the global and the local heat development; loading correction measures from a database; and assigning the correction measures locally to individual vectors of a tool path of the energy beam. At least one mass integral is calculated for individual vectors of the tool path. The measures are determined on the basis of a comparison of the calculated mass integral with mass integrals stored in the database.

Abstract: Some embodiments of the teachings herein include a fiber material for antibacterial and/or antiviral use. The fiber material may comprise: a metallic silver; and manganese(IV) oxide.

Abstract: Various embodiments include a cold gas spraying system for generating an adjustable particle jet. The system may include: a nozzle from which the particle jet emerges; a supply device for supplying a particle stream to the nozzle; and one or more actuators operable to reduce the particle stream and/or the particle jet during operation. At least one of the actuators comprises a valve arranged between the supply device and the nozzle.

Abstract: Various embodiments include a method for producing a structure with a cold gas spraying method comprising: providing a carrier with a carrier surface, to which the structure is to be attached by the cold gas spraying method by following a travel path; and providing an element with an element surface different from the carrier surface. The element is arranged in the travel path and/or the travel path is specified such that intersections of the travel path and/or interruptions of the structure are arranged on the element surface.

Abstract: Various embodiments include a method for additive manufacturing of a building structure on using a simulation comprising: accessing a data set for the building structure describing the building structure in layers; calculating a global heat development in previous layers based a building history and heat input by an energy beam; determining a local heat development in a vicinity of the heat input; determining the process control based on the global and the local heat development; loading correction measures from a database; and assigning the correction measures locally to individual vectors of a tool path of the energy beam. At least one mass integral is calculated for individual vectors of the tool path. The measures are determined on the basis of a comparison of the calculated mass integral with mass integrals stored in the database.

Abstract: Various embodiments include a method for manufacturing a contact component for an electrical switch with a contact surface for closing in electrical contact comprising manufacturing the contact component at least partially using a powder. At least two powder types are used to create different material compositions in the contact component. Manufacturing the contact component include using an additive fabrication process based on a powder bed. The contact component includes a sequence of layers. At least two of the layers include different powder types.

Abstract: Various embodiments include an installation for the powder-bed-based additive manufacturing of a workpiece, the installation comprising: a process chamber; a receiving device for a powder bed in the process chamber; multiple metering devices for different types of powder, wherein the metering devices each have a cavity and a metering slit; and a plurality of storage containers, with at least one storage container for each of the multiple metering devices, wherein each storage container feeds in the respective cavity of the metering device. The metering slits are arranged radially in relation to a perpendicular center axis running through the receiving device. The receiving device and the metering devices rotate in relation to one another about the center axis.

Abstract: Various embodiments include a material for a lithium ion accumulator comprising: a surface including electrically conductive particles coated with a functional layer providing a cathodic or anodic function for the lithium ion accumulator. The conductive particles comprise microparticles and/or nanoparticles.

Abstract: Various embodiments include a method for producing a lithium ion accumulator having an electrolyte with a cathode and an anode separated from the cathode by a separator, the method comprising: providing a first collector as a negative terminal of the accumulator at the anode; providing a second collector as a positive terminal of the accumulator at the cathode; arranging the anode and the cathode laterally next to one another between the positive terminal and the negative terminal; and separating the anode and the cathode from one another with the electrolyte and the separator. The accumulator is configured as a sandwich structure, the respective outer levels of which are formed by the negative terminal and the positive terminal.

Abstract: A component is produced in layers by laser melting. A molten pool is created in a bed of powder by a working laser beam. Further auxiliary laser beams are set to a power density that merely slows down the cooling of the material in one zone, but do not cause any renewed melting. In this way, the cooling rate of the microstructure can be set so that an advantageous structural formation develops. This allows for example the mechanical properties of the component produced to be advantageously improved without downstream heat treatments.

Abstract: The present disclosure relates powder-bed-based additive manufacturing of a component in a powder bed. For example, a method for monitoring a process for powder-bed-based additive manufacturing of a component in a powder bed may include: using an image sensor to image a surface of the powder bed; illuminating the surface of the powder bed diagonally from above from at least one direction by a light source; and evaluating an image depicted on the image sensor to monitor the surface of the powder bed.

Abstract: The surface of a component includes metallic fractions of Ag and/or Ni, touching MnO2 fractions which provide an antimicrobial effect. When using toxicologically safe Ni, these antimicrobial surfaces can be used in the food industry, for example. The surface can, for example, be applied by way of a coating on the component with the metallic fraction and the MnO2 fraction applied in two layers.

Abstract: A component is produced in layers by laser melting. A molten pool is created in a bed of powder by a working laser beam. Further auxiliary laser beams are set to a power density that merely slows down the cooling of the material in one zone, but do not cause any renewed melting. In this way, the cooling rate of the microstructure can be set so that an advantageous structural formation develops. This allows for example the mechanical properties of the component produced to be advantageously improved without downstream heat treatments.

Abstract: A method prepares a repair material for and repairs a damage point in the surface of cast parts. Spray particles having the same cast structure as the cast part are used as materials. The particles are applied to the damage point by cold gas spraying. The cold gas spraying is performed such that the spray particles are not melted and, advantageously, the cast structure is retained after the spray particles contact the repair point. The repair point can thus be advantageously furnished with the same properties as the rest of the component to be repaired. The repair material can be produced in that a cast part having the required cast structure is reduced to small pieces.