Abstract: Short fibers in a solder or a welding material often do not have the desired strength. Fiber mats that are introduced onto a surface or into a recess of a metallic component are provided. In addition a process for applying material to a metallic component is provided. In the process, a first fiber mat and a second fiber mat are used.

Abstract: The invention relates to a method for producing a layer (110) having nanoparticles (40), on a substrate (100). The invention is based on the object of specifying a method for producing a layer containing nanoparticles, which method can be carried out particularly easily and nevertheless offers a very wide degree of freedom for the configuration and the composition of the layer to be produced. According to the invention, this object is achieved in that nanoparticles (40) are released and a nanoparticle stream (50) is produced in a first process chamber (10), the nanoparticle stream (50) is passed into a second process chamber (80), and the nanoparticles (40) are deposited on the substrate (100) in the second process chamber (80).

Abstract: The invention relates to a cold gas spraying method with the aid of which a substrate to be coated can be coated with particles. According to the invention, it is provided that microencapsulated agglomerates of nanoparticles are used as particles. This advantageously allows the advantages that accompany the use of nanoparticles to be used for the coating. The nanoparticles 271, 27b are held together by microencapsulations 26c, wherein the microencapsulated particles 19 formed in this way that are used in the cold gas spraying method have dimensions I the micrometer range, thereby allowing them to be used in the first place in cold gas spraying The microencapsulated nanoparticles may be used for example to produce a UV protective coating on lamp bases for gas discharge lamps.

Abstract: Short fibers in a solder or a welding material often do not have the desired strength. Fiber mats that are introduced onto a surface or into a recess of a metallic component are provided. In addition a process for applying material to a metallic component is provided. In the process, a first fiber mat and a second fiber mat are used.

Abstract: A method for repairing a component such as a turbine blade is provided. At the end of its operating time, the component has, for example, a depletion of aluminium in a region near the surface. The application of a repair layer is provided including particles with an increased proportion of aluminium. A subsequent heat treatment may achieve the effect of equalizing the concentration of aluminium between the repair layer and the region near the surface, and so the aluminium content required for new components is achieved again.

Abstract: In a method for producing a starting material (M, N, N?) for the production of a wear layer (420), a coating (40) with a composition which corresponds to that of the wear layer (420) which is to be produced is chemically undissolved from its substrate (30) and is detached as a solid body, and that the starting material (M, N, N?) is formed by the layer material (60) of the detached coating (40).

Abstract: Short fibers in a solder or a welding material often do not have the desired strength. The invention uses fiber mats (13) which have been introduced onto a surface (10) or into a recess (7) of a metallic component.

Abstract: Components which are subject to operating loads can often be passed for refurbishment by means of an acid treatment. The time for which the components remain in the acid has hitherto been determined empirically, which means that individual loads are not taken into account. The process according to the invention for the surface treatment of a component proposes that at least repeatedly a measurement voltage be applied to the component, resulting in the flow of a current, the time profile of which represents the state of the surface treatment and is used to decide upon when to terminate or interrupt the acid treatment.

Abstract: The invention relates to a material composition that is used for producing a coating for a component, especially a turbine component, which is made of a metallic basic material, i.e. a metal or a metal alloy. Said material composition comprises a matrix material for forming a basic coating matrix and at least one filler for adjusting desired coating proportions or coating characteristics. The matrix material can be provided especially with basic glass ceramic properties.

Abstract: In a process for producing a ceramic layer (14) on a component (15) in a microwave oven (11), it is provided that a microwave generator (12) generates microwaves (17) of a defined frequency which selectively heats only constituents of the coating material (14) applied for coating the component (15). It is thereby advantageously possible to produce a ceramic layer from the precursors present in the coating material with low energy consumption and with low thermal loading of the component (15). The frequency of the microwave excitation can be set, for example, to the solvent (acetic acid, propionic acid) present in the coating material or to the heating of particles of intermetallic compounds or ceramics present in the coating material for this purpose.

Abstract: In a method for producing a component (20) with a coating (24) containing nanoparticles (21), it is provided that, in order to introduce the nanoparticles (21) into the coating (24), a film (19) with the dispersely distributed nanoparticles (21) is applied to the surface (22) to be coated, which decomposes with incorporation of the nanoparticles (21) during the actual coating operation and is thereby not incorporated into the layer.

Abstract: A description is given of a method for depositing a non-metallic, in particular ceramic, coating on a substrate (2) by means of cold gas spraying, which comprises the method steps of: producing a reactive gas flow (5) comprising at least one reactive gas, injecting into the reactive gas flow (5) particles (4) consisting of at least one material required for producing a non-metallic, in particular ceramic, coating material by reaction with the reactive gas, so as to form a mixture flow of reactive gas and particles (4), producing reactive gas radicals in the mixture flow, and directing the mixture flow comprising reactive gas radicals and particles onto a surface of a substrate (2) to be coated, and so a non-metallic, in particular ceramic, coating is deposited on the surface of the substrate (2). In addition, a description is given of a device (1) for carrying out the method.

Abstract: The invention relates to a material composition that is used for producing a coating for a component, especially a turbine component, which is made of a metallic basic material, i.e. a metal or a metal alloy. Said material composition comprises a matrix material for forming a basic coating matrix and at least one filler for adjusting desired coating proportions or coating characteristics. The matrix material can be provided especially with basic glass ceramic properties. The inventive material composition is characterized in that the matrix material and/or the filler contains nanoparticles.

Abstract: The invention relates to a method of, and a nozzle arrangement for, spraying cold gas. The nozzle arrangement has a first nozzle and a second nozzle, which is arranged within the first nozzle. The first nozzle is fed a gas which optionally contains particles. The second nozzle is fed a particle-containing gas. The particles are applied to a surface of the substrate by means of the gases.

Abstract: In a method particles are delivered to a thermal spraying process for forming a layer on a component. They are entrained there by a carrier gas stream and deposited on a component to be coated. The particles are dispersed in a liquid or solid additive before being introduced into a supply line which issues into the thermal spraying apparatus, the additive, after leaving the supply line, being transferred into the gaseous state in the carrier gas stream. A liquid additive evaporates or a solid additive is sublimated, whereby the particles in the carrier gas stream are separated. The dispersal of the particles in the additive simplifies an exact metering and prevents the particles from forming lumps, so that improved layers can be deposited by virtue of an improved homogeneity of the carrier gas stream. As the additive has been transferred into the gaseous state, it is not deposited in the layer.

Abstract: The invention relates to a method for the electrochemical removal of a metal coating from a component. According to said method, the component is immersed in an electrolyte solution and a current is passed through the component and a secondary electrode that is in contact with the electrolyte. The current is pulsed with a routine that has a duty cycle >10 to <90%, two current densities between 5 mA/cm2 to 1000 mA/cm2 and a frequency of 5 Hz to 1000 Hz.

Abstract: A method for the electrochemical application or removal of a coating of components (1) is made available, in which the component (1) serves as an electrode and in which, between the component (1) and the counterelectrode (3), an electrical field is built up which leads to the deposition of a coating material dissolved in an electrolyte or to the removal of a coating material (11) located on the component surface (2). During deposition or during removal, the component (1) is covered by structures (5) consisting of an electrically insulating material.

Abstract: The turbine parts, when they are used, form oxide layers which by the undesirable rapid growth thereof generate the damage of the parts substrate. The inventive method consists in depleting the part in an element in such a way that the oxide layer is reduced.

Abstract: A method for producing a cast metal piece and a cast metal piece are provided. An information element includes at least one piece of information. The information element is produced from a magnetizable material and the information is deposited n the magnetizable material and is cast into the information element during casting of the price, the casting temperature being above the Curie temperature of the magnetizable material of the information element.

Abstract: In a method for producing a particle (10) containing functional layer (310, 400, 600), nanoparticles are introduced into the functional layer material (320, 410, 610), the nanoparticles having a particle core (20) and a particle shell (30) surrounding the particle core. The material (K) of the particle core has a higher chemical activity than that of the particle shell and the material (M) of the particle shell allows diffusion of the material of the particle core through the particle shell into the functional layer material.