Abstract: The present invention concerns a device for measuring of layer thicknesses, especially for measuring of layer thicknesses of a structural part (18) during or after a coating process, with at least a first and a second path length measuring device (12, 14), wherein a first path length (a) to a surface (20) of a layer (22) being applied to the structural part (18) is measured by means of the first path length measuring device (12) and a second path length (b) to an uncoated surface (24) of the structural part (18) is measured by means of the second path length measuring device (14) continuously or at predetermined moments of time.

Abstract: The invention relates to a method for producing a plating (5) of a vane tip. Said method consists of the following steps: a) a vane having a vane tip which is arranged opposite the base of the vane (2) and which comprises a surface which points radially outwards is provided, and b) a porous layer (7) is applied to at least the surface (4) of the vane tip and/or c) a bulge (8) which increases the surface of the vane tip is applied to at least one part of the flanks of the vane tip, said flanks surrounding the surface of the vane tip, and d) the plating (5) is applied to the porous layer and/or the bulge. The invention also relates to corresponding vanes or gas turbines with corresponding vanes.

Abstract: A mask and method for kinetic cold gas compacting is disclosed. The mask includes a body for covering a not-to-be-coated region of a substrate to be coated having a work side exposed to a coating substance. The work side has a hardness such that the work side is not plastic deformable by a striking coating particle.

Abstract: An apparatus and a method for masking a component zone which is to be omitted by the spray jet during the thermal spraying of a component is disclosed. The apparatus can be elastically deformed at least partially at room temperature for attachment to the component. During the thermal spraying operation the apparatus has at least one inelastic region such that the impinging spray particles adhere to the surface thereof. After the thermal spraying operation, the apparatus can be removed from the covered component zone without leaving any residue. In this way, a simple, reusable solution is created, which avoids the disadvantages of the prior art.

Abstract: The invention relates to a process for cold spraying, wherein particles of at least one coating material, together with a carrier gas, are directed onto a surface of a workpiece to be coated by means of a spray gun. According to the invention, the particles of at least one coating material are preheated.

Abstract: A covering device for the coating of components via cold kinetic compaction or kinetic cold gas spraying, which can be used to cover a region which is not to be coated of a surface of the component which is to be coated. The covering device is profiled such that it encloses an acute angle with that region of the surface which is not to be coated. The particles of a coating material can be deflected from the component such that the particles do not adhere to the covering device.

Abstract: The present invention relates to a method for producing a coating on a gas turbine component, in which particles at least of parts of a material to be applied as coating are accelerated by means of kinetic gas dynamic cold spraying in a spray jet onto the surface (2) of the component (1) to be coated, wherein a reactive gas is fed into the spray jet (6), so that the reactive gas reacts at least partially with the particles of the coating material when the particles impinge on the surface (2) to be coated and/or wherein the deposited layer (9) is heated locally and/or over a large area and impacted with a reactive gas, as well as a gas turbine component produced in this way.

Abstract: A method for determining the polyester fraction in a multi-component powder during a thermal spraying process is disclosed. The multi-component powder is heated and fed to an object with the aid of a carrier, forming a coating on the object. At least one measured value for the intensity of the light emitted by the combination of the carrier and multi-component powder material on the way to the object is detected at least in the range of a characteristic wavelength of polyester. A characteristic value is derived from the combination of the measured values, and the fraction of the polyester to be determined is calculated on the basis of a previously determined relationship between the characteristic value and the polyester fraction.

Abstract: The present invention concerns a device for measuring of layer thicknesses, especially for measuring of layer thicknesses of a structural part (18) during or after a coating process, with at least a first and a second path length measuring device (12, 14), wherein a first path length (a) to a surface (20) of a layer (22) being applied to the structural part (18) is measured by means of the first path length measuring device (12) and a second path length (b) to an uncoated surface (24) of the structural part (18) is measured by means of the second path length measuring device (14) continuously or at predetermined moments of time.

Abstract: A method for producing a spray coating, in particular an abradable spray coating for components of a turbine engine by a thermal spraying process, is disclosed. An online process monitoring system, especially a PFI unit and/or a spectrometer unit, is provided for monitoring and regulating the thermal spraying process, where at least one process parameter is calculated according to the formula pB1=PB2+HB1?HB2?(?x·y)/z+n, where pB1 is the process parameter of the component that is to be coated, pB2 is the process parameter of a previous coating, HB1 is the hardness of the spray coating that is to be coated, HB2 is the hardness of the previous spray coating, ?x is a process variable of the online process monitoring system, and y, z and n are constant parameters.

Abstract: A method for producing a ceramic thermal barrier coating on a component part for use in compressor and turbine components by a vapor depositing process is disclosed. The method includes: a) provision of a ceramic vapor for depositing on the component part; b) depositing of the ceramic vapor on the component part to form a thermal barrier coating having a columnar structure, the columns being oriented substantially perpendicular to a surface of the component part; and c) varying of at least one method parameter during method step b) in such a way that the resultant thermal barrier coating has columns of alternating decreasing and increasing diameters. A thermal barrier coating is also disclosed. The thermal barrier coating has a ceramic thermal barrier coating having a columnar structure and the columns are oriented substantially perpendicular to a surface of the corresponding part. The columns have alternately decreasing and increasing diameters.

Abstract: A method for coating a workpiece, whereby a coating material and an aggregate material are applied to the workpiece by thermal spraying. In addition to the coating material, an aggregate material in which or to which a fluorescent marker material is firmly fixed is applied to the workpiece. The spraying process is monitored online by detecting and evaluating at least the particles of the fluorescent marker material present in the spray jet.

Abstract: A method and apparatus for coating a workpiece is disclosed. A material is applied to the workpiece by thermal spray coating. The spraying process is monitored on-line by detecting properties of the particles in the spray jet and supplying them as actual values, where the actual values are compared directly with target values, or characteristic quantities derived from the actual values are compared with the target values and, when a deviation is found between the actual values or characteristic quantities and the pre-specified target values, the process parameters for thermal spray coating are automatically adjusted by a regulator on the basis of a neuronal network.