Patent application number | Description | Published |
20090081445 | Ceramic Solid Component, Ceramic Layer With High Porosity, Use of Said Layer, and a Component Comprising Said Layer - Ceramic layers are often used for heat insulation in a layer system, and have a high porosity therefore, The inventive porous ceramic heat insulating layer has a particular pore size distribution such that it has a high expansion tolerance event at temperatures higher than 1200° C. | 03-26-2009 |
20090117390 | Matrix and Layer System Comprising Non-Stoichiometric Particles - Protective layers, according to the prior art, achieve their protective function b depletion of a defined element that forms a protective oxide layer or that is exhausted as a sacrificial material. Once said material is exhausted, the protective function cannot be maintained. The invention is characterized by using particles ( | 05-07-2009 |
20090136769 | Alloy, Protective Layer for Protecting a Component Against Corrosion and Oxidation at High Temperatures and Component - Disclosed is a protective layer having the composition 1.5% to 2.5% rhenium, 11% to 13% cobalt, 20% to 22% chrome, 10.5% to 11.5% aluminum, 0.3% to 0.5% yttrium and or at least one equivalent metal selected from the group comprising scandium and the rare earths and the remainder consists of nickel. Existing protective layers which have a high Al and/or Cr content and which are additionally reinforced by Re-forming brittle phases that, during use, additionally embrittle under the influence of carbon. The present invention hardly exhibits a brittleness by Cr/Re depositions. | 05-28-2009 |
20090155120 | Alloy, Protective Layer for Protecting a Component Against Corrosion and/or Oxidation at High Temperatures, and Component - Known protective layers with a high Cr content and additionally a silicon form brittle phases, which become even more brittle under the influence of carbon during use. The protective layer according to the invention has the composition 27% to 31% nickel, 23% to 29% chromium, 7% to 11% aluminum, 0.5% to 0.7% yttrium and/or at least one equivalent metal from the group comprising scandium and rare earth elements, optionally 0.6% to 0.8% silicon, optionally 0.5% to 0.7% zirconium and the remainder cobalt. | 06-18-2009 |
20090263675 | Alloy, Protective Layer for Protecting a Component Against Corrosion and/or Oxidation at High Tempertures and Component - Known protective layers with a high Cr content form brittle phases which become even more brittle during use under the influence of carbon. The protective layer according to the invention has the composition 26% to 28% cobalt, 20% to 22% chromium, 7% to 8% aluminium, 0.5% to 0.7% yttrium and/or at least one equivalent metal from the group comprising scandium and the rare-earth elements, optionally silicon and/or rhenium and the rest made up of nickel. | 10-22-2009 |
20090311508 | LAYERED THERMAL BARRIER COATING WITH A HIGH POROSITY, AND A COMPONENT - Layered thermal barrier coating with high porosity. Ceramic thermal barrier coatings according to the state of the art often do not withstand the thermal and mechanical stresses. The inventive ceramic thermal barrier coating comprises two ceramic thermal barrier layers with a different porosity, in which even the inner ceramic thermal barrier layer has a high porosity | 12-17-2009 |
20100061836 | Process for producing a turbine blade or vane with an oxide on a metallic layer, use of such a turbine blade or vane, a turbine and a method for operating a turbine - A process for producing a component of a gas turbine having a substrate with a metallic layer is provided. The metallic layer is a MCrAlX layer which is treated at temperatures elevated above the operating temperature, by at least 50° C., so that the oxidation and corrosion behavior are improved. In particular a MCrAlX of the type, NiCoCrAlX is used. | 03-11-2010 |
20100092662 | Rough Bonding Agent Layers by Means of HS-PVD or Cold Spray - An HS-PVD (high speed physical vapor deposition) or cold spray method for coating a substrate with a bonding agent layer is provided. This method includes generating a particle stream of a coating material, depositing the particle stream on the substrate and subjecting the substrate to a subsequent thermal treatment, wherein powder particles with a larger particle size are added to the particle stream. A device for implementing the method is also provided. | 04-15-2010 |
20100101234 | Evaporative Cooler and Use Thereof and Gas Turbine System Featuring an Evaporative Cooler - An evaporative cooler for cooling a gas stream, in particular an air stream, including a number of cooling elements located in a flow channel, is provided. A liquid, preferably water, is supplied by a feed device and will be vaporized or evaporated. In one aspect, the surface of at least one of the cooling elements has hydrophilic properties, at least in one sub-region designed to form a liquid film. | 04-29-2010 |
20100104430 | Component with a Protective Layer - The invention relates to a component having a substrate and a protective layer, which consists of an intermediate NiCoCrAlY layer zone on or near the substrate and an outer layer zone which is arranged on the intermediate NiCoCrAlY layer zone, which is characterized in that the intermediate NiCoCrAlY layer zone comprises of (in wt %): 11-13% Co, 20-23% Cr, 10.2-11.5% Al, 0.3-0.5 Y, 1.0-2.5% Re and Ni balance. | 04-29-2010 |
20100136367 | Component with a Substrate and a Protective Layer - A component with a substrate and a protective layer is provided. The protective layer consists of an intermediate NiCoCrAlY layer zone on or near the substrate and an outer layer zone arranged on the intermediate NiCoCrAlY layer zone, wherein the outer layer zone has the structure of the phase β-NiAl and comprises in a weight percentage: | 06-03-2010 |
20100143745 | NiCoCrl layer for forming dense and solid oxide layers and metallic layer system - NiCoCrAl layers used as anticorrosive layers characterized by additional corrosion stability enhancing agents that substantially improve the anticorrosive properties are provided. Corrosion stability is not only determined by the composition and the percentage of the main alloy elements of nickel, cobalt, chromium and aluminium, but also by the addition of corrosion stability enhancing agents, such yttrium, cerium, tantalum, niobium, silicon, titanium, zirconium, and hafnium. | 06-10-2010 |
20100199678 | Corrosion-Resistant Pressure Vessel Steel Product, a Process for Producing It and a Gas Turbine Component - A corrosion-resistant pressure vessel steel is provided. The corrosion-resistant pressure vessel is formed by aluminization of a pressure vessel steel and deliberate oxidation of the layer which has been enriched in this way. Also provided is a process for producing a corrosion-resistant pressure vessel product. The process includes alitizing the pressure vessel steel and then oxidizing the steel before it is used for the first time. Lastly, a gas turbine component using the pressure vessel steel product is provided. | 08-12-2010 |
20100227194 | Quasi-Crystallie Compound and its Use as a Thermal Barrier Coating - The invention relates to a compound with the nominal chemical composition Al | 09-09-2010 |
20100285415 | Burner Element and Burner Having Aluminum Oxide Coating and Method for Coating a Burner Element - A burner element is provided. The burner element includes a surface that potentially comes into contact with a fuel. The surface potentially coming into contact with the fuel has a coating including aluminum oxide. A burner including the burner element is also provided. Further, a method for coating a surface of a burner element potentially coming into contact with a fuel is described, wherein the surface potentially coming into contact with the fuel is coated with aluminum oxide. | 11-11-2010 |
20100329882 | Ceramic Heat-Insulating Layers Having Increased Corrosion Resistance to Contaminated Fuels - Ceramic coatings for a component that is subjected to high temperatures, especially for a turbine blade are provided. The ceramic coatings contain one or more compounds that are selected from alkaline earth silicates, ZrV | 12-30-2010 |
20110059323 | Alloy, high-temperature corrosion protection layer and layer system - A nickel-based protective layer which has a high percentage in chromium and optionally silicon and/or yttrium is provided. The nickel-based protective layer is used as low-temperature corrosion protective layer of nickel-or cobalt-based alloys. The alloy of which the layer is made and a layer system are also provided. The alloy may also include a refractory element such as hafnium or scandium. | 03-10-2011 |
20110117377 | Coating process and corrosion protection coating for turbine components - A process for coating a surface of a potentially fuel-conducting component of a turbine, in particular a gas turbine, in which the surface is firstly coated with a titanium nitride layer and subsequently with an a-aluminium oxide layer by means of chemical vapour deposition, is disclosed. In addition, a turbine component for example a component of a gas turbine, which includes a base material and a potentially fuel-conducting surface is described. The surface has an intermediate layer including titanium nitride and a covering layer including a-aluminium oxide. | 05-19-2011 |
20110189502 | Two-Layer MCRALX Coating Having Different Contents of Cobalt and Nickel - In order to improve both oxidation stability and thermo-mechanical stability, a two-layer MCrAlX coating is provided, wherein the contents of nickel and cobalt, but also chromium, aluminum, and zirconium, differ significantly. Each layer of the two layer coating may be the same thickness or the inner layer is thicker than the outer layer. | 08-04-2011 |
20110287269 | ALLOY, PROTECTIVE LAYER AND COMPONENT - A protective layer includes a composition (in wt %) of | 11-24-2011 |
20120003460 | Two-Layer Porous Layer System Having a Pyrochlore Phase - Heat-insulating layer systems must have a long service life of the heat-insulating layer in addition to a good heat-insulating property. A layer system including a sequence of layers specially matched to each other, the sequence including metallic connection layer, an inner ceramic layer, and an outer ceramic layer is provided. | 01-05-2012 |
20120128525 | Metallic Bondcoat or Alloy with a High y/y' Transition Temperature and a Component - A nickel-based coating or alloy is provided. The coating includes tantalum preferably without rhenium. The coating or alloy has stabilized the formation of phases γ/γ′ at high temperatures leading to a reduction of local stresses. A component is also provided. The substrate of the component includes a nickel-based or cobalt-based superalloy. | 05-24-2012 |
20120128526 | Metallic Bondcoat or Alloy with a High y/y' Transition Temperature and a Component - A nickel-based coating or alloy is provided. The coating includes tantalum preferably without rhenium. The coating or alloy has stabilized the formation of phases γ/γ′ at high temperatures leading to a reduction of local stresses. A component is also provided. The substrate of the component includes a nickel-based or cobalt-based superalloy. | 05-24-2012 |
20120288730 | ALLOY, PROTECTIVE LAYER, AND COMPONENT - Known protective layers having a high Cr content, as well as silicon, have brittle phases that become additionally brittle under the influence of carbon during use. A protective layer that has the composition of 32% to 35% cobalt, 10% to 13% aluminum, 0.1% to 0.3% yttrium, and/or at least one equivalent metal from the group comprising scandium and the rate earth elements, 31% to 35% chromium, 0.1% to 0.5% silicon and the remainder nickel is provided. | 11-15-2012 |
20120321905 | NANO AND MICRO STRUCTURED CERAMIC THERMAL BARRIER COATING - A layer system is provided. The layer system includes a substrate and a two layered ceramic layer with an inner ceramic layer and an outer ceramic layer. The ductility of the ceramic layer is improved by an inner ceramic layer with a nano structure. The layer system also may include a metallic bond coat. | 12-20-2012 |
20120328900 | Alloy, protective layer, and component - Known protective layers having a high chromium content, as well as silicon, have brittle phases that become additionally brittle under the influence of carbon during use. A protective layer including the composition of 18% to 20% cobalt, 6% to 8% aluminum, 0.5% to 0.7% yttrium, 22% to 26% chromium, and the remainder nickel is provided. | 12-27-2012 |
20130061775 | HIGH TEMPERATURE BOND COATING WITH INCREASED OXIDATION RESISTANCE - 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. | 03-14-2013 |
20130115479 | POROUS CERAMIC COATING SYSTEM - A coating system having two layers of porous coatings is provided. The layers include a tightly controlled and matched porosity. The layer system also includes a substrate with a bonding layer. The inner ceramic layer and the outer ceramic layer are formed on the bonding layer. The bonding layer may comprise a MCrAlX alloy. | 05-09-2013 |
20130136648 | METALLIC BONDCOAT OR ALLOY WITH A HIGH GAMMA/GAMMA' TRANSITION TEMPERATURE AND A COMPONENT - 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/gamma | 05-30-2013 |
20130136948 | ALLOY, PROTECTIVE LAYER AND COMPONENT - A known protective layer has a high Cr content and additionally containing a silicon, forms brittle phases, which become additionally embrittled under the influence of carbon during use. A proposed protective layer has the following composition: 24% to 26% cobalt, 10.5% to 11.5% aluminum, 0.1% to 0.7% yttrium and/or at least one equivalent metal from the group of scandium and the rare earth elements, 12% to 15% chromium, optionally 0.1% to 3% tantalum, optionally 0.05% to 0.5% silicon, with the remainder being nickel. | 05-30-2013 |
20130224068 | METALLIC BONDCOAT WITH A HIGH GAMMA/GAMMA' TRANSITION TEMPERATURE AND A COMPONENT - 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. | 08-29-2013 |
20130230659 | FINE-POROSITY CERAMIC COATING VIA SPPS - A process is provided for producing a fine-pored ceramic layer composed of zirconium oxide or gadolinium zirconate or ytterbium zirconate or europium zirconate or lanthanum zirconate on a substrate and/or on a metallic layer. The process includes spraying at least one water-soluble and dissolved salt. In the process, water soluble salts of zirconium and gadolinium or ytterbium or europium or lanthanum are added for the zirconates. | 09-05-2013 |
20130243642 | METALLIC BONDCOAT OR ALLOY WITH A HIGH GAMMA/GAMMA' TRANSITION TEMPERATURE AND A COMPONENT - A metallic coating or alloy is provided, which is nickel based, and includes at least γ and γ′ phases. The metallic coating or the alloy further includes tantalum (Ta) in the range of between 4 wt % to 7.5 wt %. The metallic coating or the alloy also includes cobalt (Co) in the range between 11 wt %-14.5 wt %. | 09-19-2013 |
20130288072 | ALLOY, PROTECTIVE LAYER AND COMPONENT - An alloy to a protective layer for protecting a component against corrosion and/or oxidation, in particular at high temperatures is proposed. Known protective layers with a high Cr content and in addition silicon form brittle phases which additionally embrittle during use under the influence of carbon. The proposed protective layer has the composition of from 24% to 26% cobalt, from 10% to 12% aluminum, from 0.2% to 0.5% yttrium, from 12% to 14% chromium, from 0.3% to 5.0% tantalum, nickel. | 10-31-2013 |
20130302638 | ALLOY, PROTECTIVE LAYER AND COMPONENT - Known protective layers with a high Cr content and additionally silicon form brittle phases which additionally embrittle during use under the influence of carbon. A protective layer including the composition of from 24% to 26% cobalt, from 10% to 12% aluminium, from 0.2% to 0.5T yttrium, from 12% to 14% chromium, remainder nickel is provided. | 11-14-2013 |
20130337286 | ALLOY, PROTECTIVE COATING, AND COMPONENT - Known protective coatings having a high Cr content, as well as silicon, have brittle phases that become additionally brittle under the influence of carbon during use. A protective coating is provided. The protective coating includes the composition of 24% to 26% cobalt, 10% to 12% aluminum, 0.2% to 0.5% yttrium, 12% to 14% chromium, and the remainder nickel. | 12-19-2013 |
20140011049 | LAYER SYSTEM COMPRISING AN NICOCRALY DOUBLE PROTECTIVE LAYER WITH DIFFERING CHROMIUM CONTENT AND ALLOY - 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. | 01-09-2014 |
20140060058 | GAS TURBINE SYSTEM HAVING AN EVAPORATIVE COOLER - A gas turbine system includes a compressor; a combustion chamber; a gas turbine; and an evaporative cooler. The evaporative cooler includes a plurality of cooling elements, a flow channel, and a feed device. The plurality of cooling elements are arranged in the flow channel. The feed device supplies a liquid to the plurality of cooling elements. The liquid is evaporated or vaporized. Each of the plurality of cooling elements is a flat cooling sheet, a surface of the cooling sheet having hydrophilic properties at least in a subregion which is specified for forming a liquid film. The evaporative cooler is connected ahead of the compressor on an intake side. | 03-06-2014 |
20140220379 | ALLOY, PROTECTIVE LAYER AND COMPONENT - Known protective layers having a high Cr content and additionally a silicon form brittle phases which additionally become brittle under the influence of carbon during use. The protective layer hereof has a composition 22% to 24% cobalt (Co), 10.5% to 11.5% aluminum (AI), 0.2% to 0.4% yttrium (Y) and/or at least one equivalent metal from the group comprising scandium and the rare earth elements, 14% to 16% chrome (Cr), optionally 0.3% to 0.9% tantalum, the remainder nickel (Ni). | 08-07-2014 |
20140220384 | ALLOY, PROTECTIVE LAYER AND COMPONENT - Known protective layers having a high Cr-content and a silicone in addition, form brittle phases that embrittle further under the influence of carbon during use. The protective layer according to the invention is composed of 22% to 26% cobalt (Co), 10.5% to 12% aluminum (Al), 0.2% to 0.4% Yttrium (Y) and/or at least one equivalent metal from the group comprising Scandium and the rare earth elements, 15% to 16% chrome (Cr), optionally 0.3% to 1.5% tantal, the remainder nickel (Ni). | 08-07-2014 |
20140234662 | LAYER SYSTEM HAVING A TWO-PLY METAL LAYER - 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. | 08-21-2014 |
20140315006 | CERAMIC DOUBLE LAYER BASED ON ZIRCONIUM OXIDE - 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. | 10-23-2014 |
20140342186 | LAYER SYSTEM WITH DOUBLE MCRALX METALLIC LAYER - 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. | 11-20-2014 |
20150030876 | COATING SYSTEM WITH NICOCRALY DOUBLE PROTECTIVE COATING HAVING DIFFERING CHROMIUM CONTENT AND ALLOY - 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. | 01-29-2015 |
20150071772 | METHOD FOR PRODUCING AND RESTORING CERAMIC HEAT INSULATION COATINGS IN GAS TURBINES AND ASSOCIATED GAS TURBINE - Through the use of different ceramic heat insulation coatings ( | 03-12-2015 |
20150086796 | CERAMIC THERMALLY INSULATING LAYER SYSTEM HAVING AN EXTERNAL ALUMINUM-RICH LAYER AND METHOD - 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 μm. 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. | 03-26-2015 |