Abstract: A CMAS resistant overlay coating including at least one CMAS resistant layer, wherein the overlay coating is i. disposed over a surface of a substrate including a material susceptible to CMAS corrosion, ii. includes a metal oxide matrix and iii. has at least partially a vertical columnar structure. Moreover, at least one non-oxidized metallic constituent selected from the group of aluminum, chromium and metallic constituents including aluminum and chromium is embedded in the metal oxide matrix. Furthermore, a substrate has a CMAS resistant overlay coating at issue on a surface of a material susceptible to CMAS corrosion. A CAE process is provided for forming such a CMAS resistant overlay coating on a surface of a material susceptible to CMAS corrosion.

Abstract: A manufacturing process for the synthesis of environmental barrier coating system (EBC) which protect Si-based Ceramic Matrix Composite (CMC) material against oxidation and volatilization at high temperatures is disclosed. The manufacturing process is carried out in vacuum and includes steps of depositing a silicon bond coat and an oxygen containing barrier coating. The process is supported by plasma, preferably through and arc discharge, which lead to full dissociation of the gas precursors such as silane. Plasma is as well used for pre-treatment of substrates in an uninterrupted process chain. A deposition system with essential vacuum and plasma components is disclosed as well as EBC coatings manufactured by the process.

Abstract: A CMAS resistant overlay coating including at least one CMAS resistant layer, wherein the overlay coating is i. disposed over a surface of a substrate including a material susceptible to CMAS corrosion, ii. includes a metal oxide matrix and iii. has at least partially a vertical columnar structure. Moreover, at least one non-oxidized metallic constituent selected from the group of aluminum, chromium and metallic constituents including aluminum and chromium is embedded in the metal oxide matrix. Furthermore, a substrate has a CMAS resistant overlay coating at issue on a surface of a material susceptible to CMAS corrosion. A CAE process is provided for forming such a CMAS resistant overlay coating on a surface of a material susceptible to CMAS corrosion.

Abstract: A method for producing an Al—Cr—O-based coating on a workpiece surface, including: a) placing a workpiece in an interior of a vacuum chamber, and b) depositing a film comprising aluminum and chromium on the workpiece surface to be coated, wherein a ratio of aluminum to chromium in the film in atomic percentage has a first value corresponding to Al/Cr?2.3, and c) forming volatile compounds of Cr—O, thereby causing at least part of the chromium contained in the film to leave the film in a form of Cr—O volatile compounds, and d) executing step c) during a period of time, within which the chromium content in the film is reduced until attaining a second value of the ratio of aluminum to chromium in the film in atomic percentage corresponding to Al/Cr?3.5, thereby the film is transformed into a film containing a reduced content of chromium.

Abstract: A method for applying a coating 1 to a surface 2 of a mullite material 3 is specified, which comprises pretreating the surface 2 of the mullite material 3 by means of a plasma-chemical process in which molecular hydrogen is excited in such a way that plasma-activated hydrogen is produced S1, and applying an aluminum oxide-containing layer 4 by means of a PVD process to the pretreated surface 2 of the mullite material 3 S2. Furthermore, a mullite material 3 with a coating and a gas turbine component with such a mullite material 3 are specified.

Abstract: A method for producing an Al—Cr—O-based coating on a workpiece surface, including: a) placing a workpiece in an interior of a vacuum chamber, and b) depositing a film comprising aluminum and chromium on the workpiece surface to be coated, wherein a ratio of aluminum to chromium in the film in atomic percentage has a first value corresponding to Al/Cr?2.3, and c) forming volatile compounds of Cr—O, thereby causing at least part of the chromium contained in the film to leave the film in a form of Cr—O volatile compounds, and d) executing step c) during a period of time, within which the chromium content in the film is reduced until attaining a second value of the ratio of aluminum to chromium in the film in atomic percentage corresponding to Al/Cr?3.5, thereby the film is transformed into a film containing a reduced content of chromium.

Abstract: Coated substrate comprising a substrate (1) comprising a metal substrate surface (11) coated with a coating system (7) consisting of or comprising a functional coating film (5), said functional coating film (5) consisting of or comprising at least one MCr Al—X coating layer, whereas ° the at least one MCr Al—X coating layer is deposited directly on the metal substrate (11), or ° the at least one MCr Al—X coating layer is deposited on an intermediate coating layer (3) that is formed of at least one substrate matching layer (31), wherein the at least one substrate matching layer (31) is deposited directly on the metal substrate surface (11), wherein the layer deposited directly on the metal substrate surface (11), it means respectively the MCr Al—X coating layer if it is deposited directly on the metal substrate surface (11) or the substrate matching layer (31) if it is deposited on the metal substrate surface (11) exhibits: ° epitaxial growth in part or totally, or ° heteroepitaxial growth in part or totally.

Abstract: A component of a turbine, in particular a gas turbine, wherein the component has a coating for increasing the erosion and corrosion resistance, wherein the coating is preferably applied directly to the component, wherein the coating consists of a functional layer and an intermediate layer, wherein the intermediate layer is arranged between the turbine blade substrate and the functional layer and wherein the functional layer consists of the elements Al, Cr, O and N.

Abstract: A method for applying a coating 1 to a surface 2 of a mullite material 3 is specified, which comprises pretreating the surface 2 of the mullite material 3 by means of a plasma-chemical process in which molecular hydrogen is excited in such a way that plasma-activated hydrogen is produced S1, and applying an aluminum oxide-containing layer 4 by means of a PVD process to the pretreated surface 2 of the mullite material 3 S2. Furthermore, a mullite material 3 with a coating and a gas turbine component with such a mullite material 3 are specified.

Abstract: Method for building up and/or finalizing a PVD target whereas the method comprises a process step where target material is added using an additive method.

Abstract: The present invention relates to a component comprising a substrate coated with a coating having a film (3,4 or 3,4,5) comprising one or more transition metals, TM, aluminium, Al, and nitrogen, N, wherein the TM and N as well as Al and N are comprised in the film forming respectively nitride compounds, wherein the transition metal nitride, TM-N, is present in the film distributed in different portions exhibiting one crystalline phase of TM-N, and the aluminium nitride, Al—N, is present in the film in different portions exhibiting one phase of Al—N, whereas the phase of the transition metal nitride is cubic, c-TMN, the phase of the aluminium nitride is wurtzite, w-AIN, and wherein the film exhibits coherent or (semi-) coherent interfaces between the c-TMN phase portions and the w-AI-N phase portions.

Abstract: The present invention relates to a coated substrate comprising a substrate surface coated with a coating comprising at least one layer, wherein the at least one layer comprises titanium, aluminum and nitrogen, wherein—the content of aluminum in relation to the content of titanium in the at least one layer comprising titanium, aluminum and nitrogen satisfy Al/Ti>1 by considering only the respective concentrations in atomic percentage of aluminum and titanium in the at least one layer comprising titanium, aluminum and nitrogen, and—the at least one layer comprising titanium, aluminum and nitrogen exhibits wurtzite phase of aluminum nitride and rutile phase of titanium oxide.

Abstract: The present invention relates to a component comprising a surface coated with a coating comprising a MoxCryN layer, where x and y correspond to the coefficients of Mo content and Cr content in atomic percentage, respectively, when only Mp and Cr are considered, and so x+y is considered to be 100 at %.

Abstract: Coated substrate comprising a substrate (1) comprising a metal substrate surface (11) coated with a coating system (7) consisting of or comprising a functional coating film (5), said functional coating film (5) consisting of or comprising at least one MCr Al—X coating layer, whereas ° the at least one MCr Al—X coating layer is deposited directly on the metal substrate (11), or ° the at least one MCr Al—X coating layer is deposited on an intermediate coating layer (3) that is formed of at least one substrate matching layer (31), wherein the at least one substrate matching layer (31) is deposited directly on the metal substrate surface (11), wherein the layer deposited directly on the metal substrate surface (11), it means respectively the MCr Al—X coating layer if it is deposited directly on the metal substrate surface (11) or the substrate matching layer (31) if it is deposited on the metal substrate surface (11) exhibits: ° epitaxial growth in part or totally, or ° heteroepitaxial growth in part or totally.

Abstract: A component of a turbine, in particular a gas turbine, wherein the component has a coating for increasing the erosion and corrosion resistance, wherein the coating is preferably applied directly to the component, wherein the coating consists of a functional layer and an intermediate layer, wherein the intermediate layer is arranged between the turbine blade substrate and the functional layer and wherein the functional layer consists of the elements Al, Cr, O and N.

Abstract: Component surfaces are coated with thermally stable layers. In particular infrared mirror surfaces or surfaces of combustion chambers are coated with at least one layer consisting of thermally stable Al—Cr—O in such a manner that the absorption, reflection or transmission of infrared radiations (hereinafter also called thermal radiations) is influenced.

Abstract: The present invention relates to a method for producing an Al—Cr—O-based coatings comprising at least one Al—Cr—O-based or Al—O-based film on a workpiece surface, wherein the method comprises following steps: a) placing at least one workpiece having a surface to be coated in the interior of a vacuum chamber, and b) depositing a film A comprising aluminum and chromium on the workpiece surface to be coated, wherein the ratio of aluminum to chromium in the film in atomic percentage has a first value corresponding to Al/Cr?2.3 and wherein the method further comprises following steps: c) forming volatile compounds of Cr—O, e.g.

Abstract: A macroparticle filter device for cathodic arc evaporation, to be placed between at least one arc evaporation source and at least one substrate exhibiting at least a surface to be coated with material evaporated from a cathode of the arc evaporation source in a vacuum coating chamber. The macroparticle filter device includes one or more filter components that can prevent macroparticles emitted by the cathode during cathodic arc evaporation to arrive the substrate surface to be coated. The at least one component is provided as one or more flexible sheets that block the lineal way of the macroparticles from the cathode to the substrate surface to be coated. Further a method for utilizing the macroparticle filter device is presented.

Abstract: The present invention relates to a component comprising a substrate coated with a coating having a film (3,4 or 3,4,5) comprising one or more transition metals, TM, aluminium, Al, and nitrogen, N, wherein the TM and N as well as Al and N are comprised in the film forming respectively nitride compounds, wherein the transition metal nitride, TM-N, is present in the film distributed in different portions exhibiting one crystalline phase of TM-N, and the aluminium nitride, Al—N, is present in the film in different portions exhibiting one phase of Al—N, whereas the phase of the transition metal nitride is cubic, c-TMN, the phase of the aluminium nitride is wurtzite, w-AIN, and wherein the film exhibits coherent or (semi-) coherent interfaces between the c-TMN phase portions and the w-AI-N phase portions.

Abstract: A method for improving the performance and/or service life of pistons, wherein at least one PVD coating source includes a target. The coating source is arranged on a wall of the coating chamber and is periodically operated. The target surface to be evaporated is positioned parallel to the vertical axis and the surface sections to be coated are positioned in front of the target surface in the coating region using a holding device. The substrate receiving area is rotated periodically about the rotational axis of the substrate receiving area by a rotary system which is a coupling system, or is arranged on the coupling system, or is a part of the coupling system. The rotational axis and the vertical axis form an angle which is larger than 10° and smaller than 180° such that the coating material reaches each part of the individual surface sections at least once.