Abstract:
The invention relates to a component for arrangement in the duct of a turbine engine. The component is provided with a coating, which has a surface structure with scales which overlap each other in the direction of flow of the turbine engine. The invention also relates to a spraying method for generating a coating on a component.
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:
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:
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:
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:
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:
The invention relates inter alia to a method for removing a protective coating from a component, especially a turbine blade. According to the invention, the protective coating is removed, using mechanical shock waves having a shock wave repetition rate below 20 kHz.