Abstract: 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—is a smooth oxide-containing layer in case of sliding applications under lubricated conditions, or—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.

Abstract: The present invention relates to a tribological system (1; 2) comprising a first body (102; 105) and a second body (101; 107), which each form a component of an internal combustion engine (100), in particular a piston (102), a piston ring (105) or a cylinder (101, 107), and the surfaces (112, 108, 113) of which have a first and a second material area (11, 12) 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 (11, 12) is formed as a layer on the basis of chromium oxide or aluminum chromium oxide. The invention also relates to an internal combustion engine (100) having such a system (1; 2).

Abstract: 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.

Abstract: The present invention relates to a tribological system (1; 2) comprising a first body (102; 105) and a second body (101; 107), which each form a component of an internal combustion engine (100), in particular a piston (102), a piston ring (105) or a cylinder (101, 107), and the surfaces (112, 108, 113) of which have a first and a second material area (11, 12) 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 (11, 12) is formed as a layer on the basis of chromium oxide or aluminum chromium oxide. The invention also relates to an internal combustion engine (100) having such a system (1; 2).

Abstract: 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—is a smooth oxide-containing layer in case of sliding applications under lubricated conditions, or—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.

Abstract: 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—is a smooth oxide-containing layer in case of sliding applications under lubricated conditions, or—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.

Abstract: A coated body includes a body (1) with a body surface (3) and a coating system (20) deposited on at least a portion of the body surface (3). The coating system (20) includes at least one hard friction reducing coating deposited as an outermost layer (9) which exhibits droplets (10) at its surface. The outermost layer (9) includes molybdenum copper nitride and/or molybdenum nitride and copper nitride, and at least some of the droplets (10) consist mainly of copper. Preferably most of the largest droplets (10) consist mainly of copper.

Abstract: The invention relates to a coating comprising at least one molybdenum-containing layer having molybdenum oxide, said molybdenum being essentially molybdenum monoxide. The invention further relates to a PVD process for producing the disclosed coating, in which the layer comprising the molybdenum monoxide is produced using arc evaporation. The invention also relates to a component that has said coating.

Abstract: A tribological system with a substantially improved tribological behaviour, which includes a body with a first contact face, which is coated at least partially with a first coating, a counter body with a second contact face, which is coated at least partially with a second coating and a lubricant as an interbedding. The first and second coating each include a layer as an outermost layer, wherein the composition of the outermost layer of the first coating and the composition of the outermost layer of the second coating are selected as such, that both outermost layers are smeared on steel surfaces when they are exposed to a tribological contact with steel, and both outermost layers are material-related layers, so that the element composition of the fist outermost layer complies to the element composition of the second outermost layer at least to 60 atom percent.

Abstract: 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.

Abstract: A coated body includes a body (1) with a body surface (3) and a coating system (20) deposited on at least a portion of the body surface (3). The coating system (20) includes at least one hard friction reducing coating deposited as an outermost layer (9) which exhibits droplets (10) at its surface. The outermost layer (9) includes molybdenum copper nitride and/or molybdenum nitride and copper nitride, and at least some of the droplets (10) consist mainly of copper. Preferably most of the largest droplets (10) consist mainly of copper.

Abstract: 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—is a smooth oxide-containing layer in case of sliding applications under lubricated conditions, or—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.

Abstract: The invention relates to a coating comprising at least one molybdenum-containing layer having molybdenum oxide, said molybdenum being essentially molybdenum monoxide. The invention further relates to a PVD process for producing the disclosed coating, in which the layer comprising the molybdenum monoxide is produced using arc evaporation. The invention also relates to a component that has said coating.