Abstract: A dense vertical cracked microstructure in a ceramic layer system made of an underline partially stabilized zirconia layer and an above laying fully stabilized zirconia layer show good erosion resistance and long life time is provided.

Abstract: The joining of hollow aluminum oxide particles and an outer glass layer which is produced, in particular, by means of a heat treatment gives particular corrosion protection for ceramic thermal barrier coatings. Disclosed is a special type of corrosion protection for ceramic thermal insulation layers which is produced by joining hollow aluminum oxide particles and an outer glass layer, which is produced in particular by thermal treatment.

Abstract: A metallic coating or alloy is provided. The metallic coating or alloly includes iron, chromium, aluminum, tantalum, and nickel and contains no rhenium. The presence of tantalum and iron and the absence of rhenium are effective to increase a ?/?? transition temperature of the alloy. A component including the metallic coating or alloy is also provided.

Abstract: The application relates to a ceramic coating system for thermal insulation which contains further layers for protecting against the penetration of CMAS. The application of two additional layers which consist/comprise of platinum titanium oxide, magnesium aluminate or iron aluminate and an outer aluminum or aluminum oxide layer to a ceramic layer system, thereby sufficiently protecting same from CMAS attacks at higher temperatures is provided.

Abstract: Known protective coatings with a high Cr-content and silicon as an additive have brittle phases which become additionally brittle under the influence of carbon during use. The protective coating herein has a double metallic layer that only contains tantalum on the outside contents of the layers.

Abstract: A bond coating having high corrosion and oxidation resistance and good compatibility with a thermal barrier coating is disclosed. The bond coating may be an optimized NiCrAlY material with additional materials that eliminates the presence of beta phase for oxidation by replacing the beta phase with a gamma/gamma prime system. The bond coating may also decrease the presence of phases that are detrimental to the mechanical and oxidation properties of the system, such as the sigma and BCC chromium phases. The bond coating may also have a gamma/gamma prime transition temperature that is about 400 degrees Celsius higher than conventional bond coatings, which enables local stresses to be reduced.

Abstract: Known protective layers having high Cr content and additional silicon form brittle phases, which additionally become brittle under the effect of carbon during use. The protective layer according to the invention comprises a two-part metal layer, which contains tantalum on the outside.

Abstract: A two-ply heat-insulating ceramic layer is provided with a highly porous crackfree lower ply and an outermost heat-insulating ply with vertical cracks in order to ensure both a high heat insulation as well as a high erosion resistance. In one aspect is a layer system having a two-ply, outermost ceramic layer, which has a lower ceramic layer and an outermost ceramic layer. The lower ceramic layer has a porosity of at least 5%, in particular at least 8%, very particularly preferably at least 10%, and barely any or no vertical cracks, in particular no vertical cracks running right through, and the outermost ceramic layer has a layer thickness of not more than 40%, in particular not more than 20%, very particularly preferably not more than 10% of the layer thickness of the lower ceramic layer.

Abstract: A component (1) for a turbomachine and a method for construction thereof: The component includes an inner core (6) and a first thermal bond coating (11) on the inner core (6), and a second thermal bond coating (12) on the first thermal bond coating (11). The first thermal bond coating (11) is sandwiched between the inner core (6) and the second thermal bond coating (12). A second operating temperature (T2max) of the second thermal bond coating (12) is higher than a first operating temperature (T1max) of the first thermal bond coating (11).

Abstract: A porous ceramic layer system is provided having two layers of porous layers with a tightly controlled and matched porosity. The layer system has a substrate, a metallic bonding layer on the substrate, an inner ceramic layer having a porosity, an outer ceramic layer on the inner ceramic layer, with a two-layered NiCoCrAlX layer as the metallic bonding layer, with a lower NiCoCrAlY layer, in which the content of chromium (Cr) in the lower NiCoCrAlY layer is less than the content of chromium (Cr) in the outer NiCoCrAlY layer.

Abstract: A two-layered NiCoCrAlY layer is provided. The layer includes a bottom and a top layer. Through the use of a two-layered NiCoCrAlY layer, it is possible to reduce the formation of cracks in the thermally grown oxide layer as forms on account of the protective action of the NiCoCrAlY layers.

Abstract: The use of different ceramic layers allows different configurations of gas turbines to be produced each of which is optimized for a respective use of base load operation or peak load operation.

Abstract: A metallic coating or alloy is provided. The metallic coating or alloly includes iron, chromium, aluminum, tantalum, and nickel and contains no rhenium. The presence of tantalum and iron and the absence of rhenium are effective to increase a ?/?? transition temperature of the alloy. A component including the metallic coating or alloy is also provided.

Abstract: A metallic coating is provided. The nickel based metallic coating includes tantalum, cobalt, chromium, and aluminum. The nickel based metallic coating does not include silicon and/or hafnium and/or zirconium. A tantalum addition in nickel based coating stabilized the phases gamma/gamma1 at high temperatures leading to a reduction of local stresses.

Abstract: A metallic coating or alloy is provided. The metallic coating includes iron, cobalt, chromium, and aluminum. Tantalum may also be included. A new addition in nickel based coating with stabilized gamma/gamma? phases at high temperatures lead to a reduction of local stresses. A component including the metallic coating or alloy is also provided.

Abstract: A layer system is provided that has at least: a substrate, a ceramic layer and an outermost layer, which has an aluminum-rich form, in particular directly on the ceramic layer, and optionally a metallic bonding layer between the substrate and the ceramic layer, and in which the outermost layer has aluminum particles, in particular aluminum particles with a particle size of 100 nm to 50 ?m. As a result of applying particles of aluminum to an outermost layer, the ceramic layer is better protected against what is known as CMAS (calcium, magnesium, aluminum and silicon) attacks.

Abstract: Through the use of different ceramic heat insulation coatings (7, 13) on turbine blades, it is possible to produce or restore different configurations of gas turbines, which are then optimized for a respective baseload operation application or peak load operation application. Differences in the sprayed-on heat insulation coatings (7, 13) can be generated by means of a different material composition of the powder, for example zirconium oxide, by means of a different number of layers (10), by means of different coating thicknesses and/or by means of different porosities.

Abstract: By using a two-layer NiCoCraly coating, the formation of cracks in a thermally grown oxide coating, such as is formed on the basis of the protective effect of the NiCoCraly coating, can be reduced.

Abstract: Known protective coatings with a high Cr-content and silicon as an additive have brittle phases which become additionally brittle under the influence of carbon during use. The protective coating herein has a double metallic layer that only contains tantalum on the outside contents of the layers.

Abstract: At least two ply layers of ceramic on a substrate which is applied to protect a surface in a heated hot environment. Each of the outer and bottom layers including zirconium oxide and stabilizers of yttrium oxide in different respective proportions of the yttrium oxide; the outer layer has fully stabilized zirconium oxide and the bottom layer has partially stabilized zirconium oxide.