Patent application number | Description | Published |
20100252539 | METHOD OF DEPOSITING A THERMAL BARRIER BY PLASMA TORCH - The invention relates to the field of methods of depositing a material on a substrate. It relates to a method of depositing, onto a substrate, a material that acts as a thermal barrier and that prior to deposition is in powder form. The powder is introduced into the plasma jet of a first plasma torch and into the plasma jet of at least one second plasma torch, the first plasma torch and at least the second plasma torch being disposed in an enclosure and oriented in such a manner that their plasma jets cross, so as to create a resultant plasma jet in which the powder is vaporized, the substrate being placed on the axis of the resultant plasma jet. | 10-07-2010 |
20110014370 | METHOD FOR FORMING A PROTECTIVE COATING CONTAINING ALUMINIUM AND ZIRCONIUM ON A METAL PART - The present invention relates to a method for forming a protective coating containing aluminium and zirconium on the surface of a metal part, wherein said part is put into contact with a cement made of aluminium alloy, at a treatment temperature, with an atmosphere containing an active gas which reacts with the cement to form a gaseous aluminium halide, which decomposes in contact with the part depositing metallic aluminium thereon, the active gas containing ZrOCl | 01-20-2011 |
20120125778 | METHOD OF FABRICATING A THERMAL BARRIER - The invention relates to a method of fabricating a thermal barrier comprising a ceramic coating layer covering at least a portion of the structure of a substrate, wherein the ceramic coating layer is deposited on the substrate solely by a cathodic electrodeposition process between at least one cathode ( | 05-24-2012 |
20120128934 | PART COMPRISING A SUBSTRATE CARRYING A CERAMIC COATING LAYER - The invention relates to a part comprising a substrate made of an electron-conducting material and a coating over at least a portion of the surface of the substrate, the coating comprising a ceramic coating layer. In characteristic manner, said coating layer is based on cerium oxides and said coating layer presents oxygen vacancies at a concentration greater than or equal to 1×10 | 05-24-2012 |
Patent application number | Description | Published |
20120094148 | PROCESS FOR DEPOSITING A COATING FOR PROTECTION AGAINST OXIDATION AND AGAINST HOT CORROSION ON A SUPERALLOY SUBSTRATE, AND COATING OBTAINED - Process for depositing a coating for protection against oxidation and against hot corrosion on a superalloy substrate, and coating obtained | 04-19-2012 |
20120177823 | METHOD FOR FORMING A PROTECTIVE COATING CONTAINING ALUMINUM ON THE SURFACE OF A METAL PART - A method for forming a protective coating containing aluminum on the surface of a metal part, wherein the part is contacted with a carburizer made of an aluminum alloy, at a treatment temperature and in a chamber, the atmosphere of which contains an active gas which reacts with the carburizer to form a gaseous aluminum halide, which decomposes upon contacting the part while depositing aluminum metal thereon. In the method the aluminum alloy of the carburizer includes at least one element, zirconium and/or hafnium, the active gas reacting with the carburizer to also form a halide of the reactive element which decomposes upon contacting the part while depositing the element thereon at the same time as the aluminum. | 07-12-2012 |
20130115085 | THERMAL BARRIER FOR TURBINE BLADES, HAVING A COLUMNAR STRUCTURE WITH SPACED-APART COLUMNS - A process for depositing a ceramic layer on a metal substrate for producing a thermal barrier, the process including depositing the ceramic in a columnar structure. The deposition is carried out through a grid pierced with holes, which is positioned parallel to a surface of the substrate so as to produce ceramic columns separated from one another by a space. The process can further include a subsequent depositing of an isotropic ceramic layer in the spaces. | 05-09-2013 |
20130122198 | PROCESS FOR FORMING A PROTECTIVE COATING ON THE SURFACE OF A METAL PART - The present invention relates to a process for forming on the surface of a metal part a protective coating containing aluminium and zirconium, in which process said part and a cement made of an aluminium alloy are brought into contact with a gas at a treatment temperature in a treatment vessel, the gas comprising a carrier gas and an activator, the activator reacting with the cement to form a gaseous aluminium halide that decomposes on the surface of the part, depositing metallic aluminium thereon, the activator containing a zirconium salt such as ZΓO (¾ obtained from granules of a zirconium salt), disassociation reactions of said zirconium salt taking place within a disassociation temperature range with formation of a Zr metal coating on the surface of the part, the assembly comprising the part, the cement and the zirconium salt granules is progressively heated in the chamber from room temperature up to the treatment temperature, the process being characterized in that the treatment chamber is maintained at an overpressure with no carrier gas flow throughout the temperature range corresponding to the disassociation reactions of the zirconium salt. | 05-16-2013 |
20130130052 | METHOD FOR MANUFACTURING A THERMAL-BARRIER PROTECTION AND MULTILAYER COATING SUITABLE FOR FORMING A THERMAL BARRIER - The invention relates to a method for manufacturing a thermal barrier protection covering a superalloy metal substrate and comprising at least one metal sublayer ( | 05-23-2013 |
20130344347 | PROCESS FOR LOCAL REPAIR OF A DAMAGED THERMOMECHANICAL PART AND PART THUS PRODUCED, IN PARTICULAR A TURBINE PART - A process and device in production of precise three-dimensional sinters of a shape substantially close to that of an original part, using flash sintering produced by spark plasma sintering (SPS) technology. A mold is produced in a die of an enclosure for SPS flash sintering, the mold being shaped as an impression of the original part. The following are deposited in successive layers in the mold: a layer based on a superalloy powder, a metallic protection layer, and a thermal barrier layer. In a sintering, pressurization is initiated and a pulsed current passes through, producing a rapid rise in temperature in accordance with a flash sintering cycle whose temperature, pressure, and duration are regulated, with at least one temperature plateau and one pressure plateau. The layer of superalloy forms, by diffusion, during the sintering, a bonding continuum of material with the part to be repaired. | 12-26-2013 |