Oerlikon Surface Solutions Ag, Pfaffikon

Oerlikon Trading Ag, Trubbach

Mahle International Gmbh

Oerlikon Trading Ag, Truebbach

Oerlikon Surface Solutions Ag, Trubbach

Beno Widrig

Jürgen Ramm

Juergen Ramm

Florian Seibert

Christian Wohlrab

Helmut Rudigier

Daniel Lendi

Malko Gindrat

Matthias Lukas Sobiech

Michael Ante

Doris Fopp-Spori

Oliver Jarry

Jurgen Ramm

Denis Kurapov

Volker Derflinger

Peter Polcik

Orlaw Massler

Othmar Zueger

Hamid Bolvardi

Peter Ernst

Wolfgang Kalss

Andreas Reiter

Reinhard Rose

Oliver Gstoehl

Richard Rachbauer

Johann Karner

Kurt Ruhm

Oliver Hunold

Monika Lehnert

Stephan Kasemann

Neir Beganovic

Troy Vom Braucke

Carmen Jerg

Lin Shang

Barbara Hanselmann

Marcelo Dornelles Pimenta

Jüergen Ramm

Arvid Stellmacher

Ruedi Roppel

Kerstin Glantz

Doris Foppspori

Reinhard Dr Rose

Monika Dr Lehnert

Kerstin GLÄNTZ

A superalloy workpiece includes a superalloy substrate and an interface layer (IF-1) of essentially the same superalloy composition directly on a surface of the superalloy substrate. A transition layer (TL) of essentially the same superalloy and superalloy oxides or a different metal composition and different metal oxides is on the interface layer (IF-1). The oxygen content of the transition layer increases from the interface layer (IF-1) towards a barrier layer (IF-2) of super alloy oxides or of different metal oxides.

PVD bond coat

Coated substrate comprising a substrate () comprising a metal substrate surface () coated with a coating system () consisting of or comprising a functional coating film (), said functional coating film () consisting of or comprising at least one MCr Al&#x2014;X coating layer, whereas &#xb0; the at least one MCr Al&#x2014;X coating layer is deposited directly on the metal substrate (), or &#xb0; the at least one MCr Al&#x2014;X coating layer is deposited on an intermediate coating layer () that is formed of at least one substrate matching layer (), wherein the at least one substrate matching layer () is deposited directly on the metal substrate surface (), wherein the layer deposited directly on the metal substrate surface (), it means respectively the MCr Al&#x2014;X coating layer if it is deposited directly on the metal substrate surface () or the substrate matching layer () if it is deposited on the metal substrate surface () exhibits: &#xb0; epitaxial growth in part or totally, or &#xb0; heteroepitaxial growth in part or totally.

Coating comprising MCrAl-X coating layer

A layered stack that can be used as an oxidation and chemical barrier with superalloy substrates, including Ni, Ni&#x2014;Co, Co, and Ni-aluminide based substrates, and methods of preparing the layered stack. The layer system can be applied to a substrate in a single physical vapor deposition process with no interruption of vacuum conditions.

PVD barrier coating for superalloy substrates

The present invention relates to coated sliding parts having coating systems which allow better sliding performance under dry and/or under lubricated conditions. The coating systems according to the present invention being characterized by having an outermost layer which&#x2014;is a smooth oxide-containing layer in case of sliding applications under lubricated conditions, or&#x2014;is a self-lubricated layer comprising molybdenum nitride, in case of sliding applications under dry or lubricated conditions, is a self lubricated layer with a structured surface comprising a multitude of essentially circular recesses with diameters of several micrometers or below, the recesses randomly distributed over the surface.

Coating with enhanced sliding properties

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.

Corrosion- and erosion-resistant coating for turbine blades of gas turbines

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 %.

Wear and/or friction reduction by using molybdenum nitride based coatings

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&#x2014;Cr&#x2014;O in such a manner that the absorption, reflection or transmission of infrared radiations (hereinafter also called thermal radiations) is influenced.

Infrared mirror with a thermally stable layer

In these investigations, an attempt has been made to correlate the deposition parameters of the reactive cathodic arc evaporation with processes at the surface of the composite Al&#x2014;Cr targets and the nucleation and phase formation of the synthesized Al&#x2014;Cr&#x2014;O layers. The oxygen partial pressure and the pulsed operation of the arc current influence the formation of intermetallic phases and solid solutions at the target surface. The nucleation of the ternary oxides at the substrate site appears to be, to some extent, controllable by the intermetallics or solid solutions formed at the target surface. A specific nucleation process at substrate site can therefore be induced by the free choice of target composition in combination with the partial pressure of the oxygen reactive gas. It also allows the control over the oxide island growth at the target surface which occurs occasionally at higher oxygen partial pressure. This hypothesis is supported by the X-ray diffraction analysis of the layers as well as of the target surface.

Synthesis of metal oxides by reactive cathodic arc evaporation

The present invention relates to a tribological system () comprising a first body () and a second body (), which each form a component of an internal combustion engine (), in particular a piston (), a piston ring () or a cylinder (), and the surfaces () of which have a first and a second material area () which come into contact with each other at least in some regions during operation and form a tribological contact, wherein the first and/or the second material area () is formed as a layer on the basis of chromium oxide or aluminum chromium oxide. The invention also relates to an internal combustion engine () having such a system ().

Tribological system of an internal combustion engine with a coating

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.

Macroparticle filter device and method for use in cathodic arc deposition

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&#xb0; and smaller than 180&#xb0; such that the coating material reaches each part of the individual surface sections at least once.

Method for coating motor pistons

A method for producing an oxidation barrier layer on a workpiece substrate in which the oxidation barrier layer is produced by means of physical deposition from the gas phase (PVD) and is an oxide that is materially related to the uncoated surface of the workpiece.

Oxidation barrier layer

The present invention relates to coated sliding parts having coating systems which allow better sliding performance under dry and/or under lubricated conditions. The coating systems according to the present invention being characterized by having an outermost layer which&#x2014;is a smooth oxide-containing layer in case of sliding applications under lubricated conditions, or&#x2014;is a self-lubricated layer comprising molybdenum nitride, in case of sliding applications under dry or lubricated conditions, is a selflubricated layer with a structured surface comprising a multitude of essentially circular recesses with diameters of several micrometers or below, the recesses randomly distributed over the surface.

This invention relates to an arc-based method for the deposition of insulating layers and to an arc-based method for low-temperature coating processes, in which an electric arc discharge, ignited and applied on the surface of a target in an arc source, is simultaneously fed a direct current and a pulsed or alternating current. The invention further relates to an arc source in which the target is connected to a power supply unit that encompasses either a minimum of one pulsed high-current power supply' and an additional power supply&#x2033;, or a power supplydesigned with switchable combinatorial circuitry.

Method for operating a pulsed arc source

In order to produce zirconia-based layers on a deposition substrate, wherein reactive spark deposition using pulsed spark current and/or the application of a magnetic field that is perpendicular to the spark target are employed, a mixed target comprising elemental zircon and at least one stabilizer is used, or a zirconium target comprising elemental zirconium is used, wherein in addition to oxygen, nitrogen is used as the reactive gas. As an alternative, combined with the use of the mixed target, nitrogen can also be used as the reactive gas in addition to oxygen.

Method for producing cubic zirconia layers

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Bad Ragaz, Switzerland

Beno Widrig