Patents by Inventor Mathieu Boidot
Mathieu Boidot has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11752541Abstract: A process for coating a refractory alloy part is provided and includes coating an area of a refractory alloy part by means of a treatment composition including a type of preceramic polymer and a solvent, and heat treating the part coated with the treatment composition. The heat treating partially converts the preceramic polymer and forms a ceramic coating obtained by conversion, the ceramic coating protecting the refractory alloy from oxidation. The treatment composition also includes active fillers to form an alloy coating on a surface of the part by solid diffusion in addition to the ceramic coating obtained by conversion, and the alloy coating generates a protective oxide layer when subjected to oxidizing conditions.Type: GrantFiled: August 7, 2019Date of Patent: September 12, 2023Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, SAFRANInventors: Mirna Bechelany, Virginie Jaquet, Amar Saboundji, Mathieu Soulier, Mathieu Boidot, Richard Laucournet
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Patent number: 11542586Abstract: A process for coating a part by chemical vapor diffusion is provided and includes placing a powder mixture in a chamber, immersing the part partially in the powder mixture, and applying a heat treatment to the part. The powder mixture includes a first component and a second component forming a gaseous compound during the heat treatment so as to allow deposition of the second component on the part. The part includes a metal refractory allow and the second component forms a solid diffusion alloy by solid diffusion with a metal species of the refractory metal alloy to generate a coating. The solid diffusion allow generates a passivating oxide layer when subjected to oxidizing conditions.Type: GrantFiled: August 7, 2019Date of Patent: January 3, 2023Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, SAFRANInventors: Mirna Bechelany, Virginie Jaquet, Amar Saboundji, Mathieu Soulier, Mathieu Boidot, Richard Laucournet
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Publication number: 20210299743Abstract: A process for coating a refractory alloy part is provided and includes coating an area of a refractory alloy part by means of a treatment composition including a type of preceramic polymer and a solvent, and heat treating the part coated with the treatment composition. The heat treating partially converts the preceramic polymer and forms a ceramic coating obtained by conversion, the ceramic coating protecting the refractory alloy from oxidation. The treatment composition also includes active fillers to form an alloy coating on a surface of the part by solid diffusion in addition to the ceramic coating obtained by conversion, and the alloy coating generates a protective oxide layer when subjected to oxidizing conditions.Type: ApplicationFiled: August 7, 2019Publication date: September 30, 2021Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, SAFRANInventors: Mirna BECHELANY, Virginie JAQUET, Amar SABOUNDJI, Mathieu SOULIER, Mathieu BOIDOT, Richard LAUCOURNET
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Publication number: 20210292882Abstract: A process for coating a part by chemical vapor diffusion is provided and includes placing a powder mixture in a chamber, immersing the part partially in the powder mixture, and applying a heat treatment to the part. The powder mixture includes a first component and a second component forming a gaseous compound during the heat treatment so as to allow deposition of the second component on the part. The part includes a metal refractory allow and the second component forms a solid diffusion alloy by solid diffusion with a metal species of the refractory metal alloy to generate a coating. The solid diffusion allow generates a passivating oxide layer when subjected to oxidizing conditions.Type: ApplicationFiled: August 7, 2019Publication date: September 23, 2021Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, SAFRANInventors: Mirna BECHELANY, Virginie JAQUET, Amar SABOUNDJI, Mathieu SOULIER, Mathieu BOIDOT, Richard LAUCOURNET
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Patent number: 10851667Abstract: The object of the present invention is to produce a metal part equipped with a protection system, particularly for turbine blades for aircraft engines, having a thermal barrier that is improved in terms of thermal properties, adhesion to the part and resistance to oxidation/corrosion. In order to achieve this, the method according to the invention produces in a single step, from specific ceramics, coating layers using SPS technology. According to one embodiment, a metal part is produced according to an SPS flash sintering method and comprises a superalloy substrate (22), a metal sub-layer (21), a TGO oxide layer (25) and the thermal barrier (23) formed by said method from at least two chemically and thermally compatible ceramic layers (2a, 2b). A first ceramic (2a), referred to as the inner ceramic, is designed to have a substantially higher expansion coefficient.Type: GrantFiled: November 13, 2018Date of Patent: December 1, 2020Assignees: SAFRAN AIRCRAFT ENGINES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, INSTITUT NATIONAL POLYTECHNIQUE DE TOULOUSE, UNIVERSITE PAUL SABATIER DE TOULOUSEInventors: Juliette Hugot, Mathieu Boidot, Daniel Monceau, Djar Oquab, Claude Estournes
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Patent number: 10703012Abstract: A tool to differentially compress a powder material comprises a differential compression piston and a support. The piston comprises a first part configured to apply a pressure on a first region of an external surface of the powder material. The piston comprises a second part with a recess which is located at a lateral distance from the first part and which is configured to face a second region of the external surface of the powder material. The tool further comprises a membrane that can be deformed by the piston. The deformable membrane is configured to at least partially retain the powder material in the tool.Type: GrantFiled: December 7, 2016Date of Patent: July 7, 2020Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventor: Mathieu Boidot
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Publication number: 20190101020Abstract: The object of the present invention is to produce a metal part equipped with a protection system, particularly for turbine blades for aircraft engines, having a thermal barrier that is improved in terms of thermal properties, adhesion to the part and resistance to oxidation/corrosion. In order to achieve this, the method according to the invention produces in a single step, from specific ceramics, coating layers using SPS technology. According to one embodiment, a metal part is produced according to an SPS flash sintering method and comprises a superalloy substrate (22), a metal sub-layer (21), a TGO oxide layer (25) and the thermal barrier (23) formed by said method from at least two chemically and thermally compatible ceramic layers (2a, 2b). A first ceramic (2a), referred to as the inner ceramic, is designed to have a substantially higher expansion coefficient.Type: ApplicationFiled: November 13, 2018Publication date: April 4, 2019Applicants: SAFRAN AIRCRAFT ENGINES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, INSTITUT NATIONAL POL YTECHNIQUE DE TOULOUSE, UNIVERSITE PAUL SABATIER DE TOULOUSEInventors: Juliette HUGOT, Mathieu BOIDOT, Daniel MONCEAU, Djar OQUAB, Claude ESTOURNES
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Patent number: 10161262Abstract: A method for producing a thermal barrier in a multilayered system for protecting a metal part made of superalloy, by producing a thermal treatment by flash sintering protection materials in layers superposed on the metal part in an SPS machine enclosure. The layers contain, on a superalloy substrate, at least two layers of zirconium-based refractory ceramics. A metal part is produced according to a SPS flash sintering method and contains a superalloy substrate, a metal sub-layer, a TGO oxide layer and the thermal barrier formed by the method. A first ceramic is an inner ceramic designed to have a substantially higher expansion coefficient. An outer ceramic is designed to have at least lower thermal conductivity, and at least one of a sintering temperature or maximum operating temperature that is substantially higher. The thermal barrier has a composition and porosity gradient from the metal sub-layer to the outer ceramic.Type: GrantFiled: March 7, 2012Date of Patent: December 25, 2018Assignees: SAFRAN AIRCRAFT ENGINES, Centre National De La Recherche Scientifique, Institut National Polytechnique de Toulouse, Université Paul-SABATIER Toulouse IIIInventors: Juliette Hugot, Mathieu Boidot, Daniel Monceau, Djar Oquab, Claude Estournes
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Publication number: 20170157795Abstract: A tool to differentially compress a powder material comprises a differential compression piston and a support. The piston comprises a first part configured to apply a pressure on a first region of an external surface of the powder material. The piston comprises a second part with a recess which is located at a lateral distance from the first part and which is configured to face a second region of the external surface of the powder material. The tool further comprises a membrane that can be deformed by the piston. The deformable membrane is configured to at least partially retain the powder material in the tool.Type: ApplicationFiled: December 7, 2016Publication date: June 8, 2017Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventor: Mathieu BOIDOT
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Patent number: 9546566Abstract: The invention relates to a part comprising a coating on a superalloy metal substrate, the coating comprising a metal underlayer covering said substrate, the part being characterized in that said metal underlayer contains a base of nickel aluminide and also contains 0.5 at % to 0.95 at % of one or more stabilizer elements M from the group formed by Cu and Ag for stabilizing the gamma and gamma prime phases.Type: GrantFiled: April 24, 2012Date of Patent: January 17, 2017Assignees: SNECMA, Centre National de la Recherche ScientifiqueInventors: Jean-yves Guedou, Mathieu Boidot, Claude Estournes, Daniel Monceau, Djar Oquab, Serge Selezneff
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Publication number: 20140050940Abstract: The invention relates to a part comprising a coating on a superalloy metal substrate, the coating comprising a metal underlayer covering said substrate, the part being characterized in that said metal underlayer contains a base of nickel aluminide and also contains 0.5 at % to 0.95 at % of one or more stabilizer elements M from the group formed by Cu and Ag for stabilizing the gamma and gamma prime phases.Type: ApplicationFiled: April 24, 2012Publication date: February 20, 2014Applicants: SNECMA, UNIVERSITE PAUL SABATIER TOULOUSE lll, INSTITUT NATIONAL POLYTECHNIQUE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Jean-Yves Guedou, Mathieu Boidot, Claude Estournes, Daniel Monceau, Djar Oquab, Serge Selezneff
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Publication number: 20130344349Abstract: A method for producing a thermal barrier in a multilayered system for protecting a metal part made of superalloy, by producing a thermal treatment by flash sintering protection materials in layers superposed on the metal part in an SPS machine enclosure. The layers contain, on a superalloy substrate, at least two layers of zirconium-based refractory ceramics. A metal part is produced according to a SPS flash sintering method and contains a superalloy substrate, a metal sub-layer, a TGO oxide layer and the thermal barrier formed by the method. A first ceramic is an inner ceramic designed to have a substantially higher expansion coefficient. An outer ceramic is designed to have at least lower thermal conductivity, and at least one of a sintering temperature or maximum operating temperature that is substantially higher. The thermal barrier has a composition and porosity gradient from the metal sub-layer to the outer ceramic.Type: ApplicationFiled: March 7, 2012Publication date: December 26, 2013Applicants: SNECMA, UNIVERSITE PAUL SEBATIER-TOULOSE III (UPS), INSTITUT NATIONAL POLYTECHNIQUE DE TOULOUSE (INPT), CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)Inventors: Juliette Hugot, Mathieu Boidot, Daniel Monceau, Djar Oquab, Claude Estournes