Patents by Inventor André Malie
André Malie 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: 10445434Abstract: An estimation method for estimating thickness of a ceramic thermal barrier coating that is to be deposited by physical vapor deposition from at least one target and onto a gas turbine hot part mounted on a support tooling, the method including: digitally modeling a geometrical shape of the hot part and its movements relative to the target; representing the modeled hot part as a surface mesh; and estimating, for at least one mesh element of the hot part exposed to the radiation from the target during deposition of the coating, a coating thickness to be deposited on the mesh element at a given instant by using a radiation model modeling radiation from the target and taking account of the position of the mesh element at that given instant relative to the target.Type: GrantFiled: December 21, 2012Date of Patent: October 15, 2019Assignee: SAFRAN AIRCRAFT ENGINESInventors: Marie-Ange Boheas, Sarah Hamadi, Andre Malie, Annie Pasquet
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Publication number: 20190242001Abstract: A method for coating at least one surface of a solid substrate with at least one layer comprising at least one ceramic compound by a suspension plasma spraying (SPS) technique, in which at least one suspension of solid particles of at least one ceramic compound is injected into a plasma jet, and then the thermal jet that contains the solid particle suspension is sprayed onto the surface of the substrate, by way of which the layer comprising at least one ceramic compound is formed on the surface of the substrate; method characterised in that, in the suspension, at least 90 vol % of the solid particles have a larger dimension (referred to as d90), such as a diameter, smaller than 15 ?m, preferably smaller than 10 ?m, and at least 50 vol % of the solid particles have a larger dimension, such as a diameter (referred to as d50), no smaller than 1 ?m. A substrate coated with at least one layer that can be obtained by the method.Type: ApplicationFiled: October 18, 2017Publication date: August 8, 2019Inventors: Benjamin Bernard, Aurélie Quet, Emmanuel Herve, Luc Bianchi, Aurélien Joulia, André Malie
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Publication number: 20150310133Abstract: An estimation method for estimating thickness of a ceramic thermal barrier coating that is to be deposited by physical vapor deposition from at least one target and onto a gas turbine hot part mounted on a support tooling, the method including: digitally modeling a geometrical shape of the hot part and its movements relative to the target; representing the modeled hot part as a surface mesh; and estimating, for at least one mesh element of the hot part exposed to the radiation from the target during deposition of the coating, a coating thickness to be deposited on the mesh element at a given instant by using a radiation model modeling radiation from the target and taking account of the position of the mesh element at that given instant relative to the target.Type: ApplicationFiled: December 21, 2012Publication date: October 29, 2015Inventors: Marie-Ange BOHEAS, Sarah HAMADI, André MALIE, Annie PASQUET
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Patent number: 7429350Abstract: The invention relates to a composite target in the form of a bar made of ceramic powders and designed to be evaporated under an electron beam, the target comprising zirconia and at least one zirconia stabilizer. In characteristic manner, said target is wherein said zirconia stabilizer is at a molar content lying in the range 2% to 30% and wherein said zirconia is formed by more than 90% of a monoclinic phase. The invention is applicable to fabricating a ceramic thermal barrier of low thermal conductivity and high thermomechanical strength formed by evaporation under an electron beam.Type: GrantFiled: December 10, 2007Date of Patent: September 30, 2008Assignees: SNECMA, SNECMA ServicesInventors: Bertrand Saint-Ramond, Andre Malie, Christophe Chaput, Isabelle Porte, Cyrille Delage
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Patent number: 7396592Abstract: The invention relates to a composite target in the form of a bar made of ceramic powders and designed to be evaporated under an electron beam, the target comprising zirconia and at least one zirconia stabilizer. In characteristic manner, said target is wherein said zirconia stabilizer is at a molar content lying in the range 2% to 30% and wherein said zirconia is formed by more than 90% of a monoclinic phase. The invention is applicable to fabricating a ceramic thermal barrier of low thermal conductivity and high thermomechanical strength formed by evaporation under an electron beam.Type: GrantFiled: December 10, 2007Date of Patent: July 8, 2008Assignees: Snecma, Snecma ServicesInventors: Bertrand Saint-Ramond, Andre Malie, Christophe Chaput, Isabelle Porte, Cyrille Delage
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Patent number: 7374821Abstract: The invention relates to a ceramic thermal barrier composition of low conductivity and high high-temperature strength. In characteristic manner, the composition comprises a zirconia base, at least one trivalent oxide enabling the zirconia to be stabilized and enabling the thermal conductivity of the zirconia to be reduced in optimum manner, and at least one pentavalent oxide enabling the content of oxygen vacancies to be reduced so as to make it substantially equal to that of a partially stabilized zirconia. Preferably, said trivalent oxide is present with a molar content constituted by a first portion enabling the zirconia to be stabilized partially and a second portion which introduces point defects into the lattice said pentavalent oxide is present with a molar concentration equal to said molar concentration of said second portion of the trivalent oxide. The invention is applicable to making a superalloy machine part having a ceramic coating with said composition, and possibly also a bonding underlayer.Type: GrantFiled: August 5, 2004Date of Patent: May 20, 2008Assignees: Snecma, Snecma ServicesInventors: Bérangère Leclercq, Rémy Mevrel, Alban Azzopardi, André Malie, Bertrand Saint-Ramond
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Publication number: 20080090100Abstract: The invention relates to a composite target in the form of a bar made of ceramic powders and designed to be evaporated under an electron beam, the target comprising zirconia and at least one zirconia stabilizer. In characteristic manner, said target is wherein said zirconia stabilizer is at a molar content lying in the range 2% to 30% and wherein said zirconia is formed by more than 90% of a monoclinic phase. The invention is applicable to fabricating a ceramic thermal barrier of low thermal conductivity and high thermomechanical strength formed by evaporation under an electron beam.Type: ApplicationFiled: December 10, 2007Publication date: April 17, 2008Applicants: SNECMA MOTEURS, SNECMA SERVICESInventors: Bertrand Saint-Ramond, Andre Malie, Christophe Chaput, Isabelle Porte, Cyrille Delage
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Publication number: 20080088067Abstract: The invention relates to a composite target in the form of a bar made of ceramic powders and designed to be evaporated under an electron beam, the target comprising zirconia and at least one zirconia stabilizer. In characteristic manner, said target is wherein said zirconia stabilizer is at a molar content lying in the range 2% to 30% and wherein said zirconia is formed by more than 90% of a monoclinic phase. The invention is applicable to fabricating a ceramic thermal barrier of low thermal conductivity and high thermomechanical strength formed by evaporation under an electron beam.Type: ApplicationFiled: December 10, 2007Publication date: April 17, 2008Applicants: SNECMA MOTEURS, SNECMA SERVICESInventors: Bertrand Saint-Ramond, Andre Malie, Christophe Chaput, Isabelle Porte, Cyrille Delage
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Publication number: 20080069959Abstract: The invention relates to a ceramic thermal barrier composition of low conductivity and high high-temperature strength. In characteristic manner, the composition comprises a zirconia base, at least one trivalent oxide enabling the zirconia to be stabilized and enabling the thermal conductivity of the zirconia to be reduced in optimum manner, and at least one pentavalent oxide enabling the content of oxygen vacancies to be reduced so as to make it substantially equal to that of a partially stabilized zirconia. Preferably, said trivalent oxide is present with a molar content constituted by a first portion enabling the zirconia to be stabilized partially and a second portion which introduces point defects into the lattice said pentavalent oxide is present with a molar concentration equal to said molar concentration of said second portion of the trivalent oxide. The invention is applicable to making a superalloy machine part having a ceramic coating with said composition, and possibly also a bonding underlayer.Type: ApplicationFiled: November 23, 2007Publication date: March 20, 2008Applicants: SNECMA MOTEURS, SNECMA SERVICESInventors: Berangere Leclercq, Remy Mevrel, Alban Azzopardi, Andre Malie, Bertrand Saint-Ramond
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Patent number: 7335616Abstract: The invention relates to a composite target in the form of a bar made of ceramic powders and designed to be evaporated under an electron beam, the target comprising zirconia and at least one zirconia stabilizer. In characteristic manner, said target is wherein said zirconia stabilizer is at a molar content lying in the range 2% to 30% and wherein said zirconia is formed by more than 90% of a monoclinic phase. The invention is applicable to fabricating a ceramic thermal barrier of low thermal conductivity and high thermomechanical strength formed by evaporation under an electron beam.Type: GrantFiled: October 4, 2004Date of Patent: February 26, 2008Assignees: SNECMA Moteurs, SNECMA ServicesInventors: Bertrand Saint-Ramond, Andre Malie, Christophe Chaput, Isabelle Porte, Cyrille Delage
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Publication number: 20070237971Abstract: The invention relates to a composite target in the form of a bar made of ceramic powders and designed to be evaporated under an electron beam, the target comprising zirconia and at least one zirconia stabilizer. In characteristic manner, said target is wherein said zirconia stabilizer is at a molar content lying in the range 2% to 30% and wherein said zirconia is formed by more than 90% of a monoclinic phase. The invention is applicable to fabricating a ceramic thermal barrier of low thermal conductivity and high thermomechanical strength formed by evaporation under an electron beam.Type: ApplicationFiled: October 4, 2004Publication date: October 11, 2007Applicants: SNECMA MOTEURS, SNECMA SERVICESInventors: Bertrand Saint-Ramond, Andre Malie, Christophe Chaput, Isabelle Porte, Cyrille Delage
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Patent number: 7074506Abstract: A composite target is placed in a chamber. The target is in the form of a bar made of ceramic powder and it presents composition that is not uniform in the longitudinal direction. At least one substrate is introduced into the chamber in order to have formed thereon a ceramic coating with a composition gradient. The top face of the bar is swept by an electron beam so as to melt the bar material at its top face and form a vapor cloud in the chamber under low pressure. A bar is used that presents a plurality of superposed layers of different compositions, with the composition within each layer being uniform over the entire cross-section of the bar. Each layer of the bar comprises zirconia and at least one oxide selected from the oxides of nickel, cobalt, iron, yttrium, hafnium, cerium, lanthanum, tantalum, niobium, scandium, samarium, gadolinium, dysprosium, ytterbium, and aluminum.Type: GrantFiled: July 14, 2004Date of Patent: July 11, 2006Assignee: SNECMA MoteursInventors: Christophe Chaput, Cyrille Delage, Andre Malie, Isabelle Porte, Bertrand Saint-Ramond
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Publication number: 20050064225Abstract: The invention relates to a ceramic thermal barrier composition of low conductivity and high high-temperature strength. In characteristic manner, the composition comprises a zirconia base, at least one trivalent oxide enabling the zirconia to be stabilized and enabling the thermal conductivity of the zirconia to be reduced in optimum manner, and at least one pentavalent oxide enabling the content of oxygen vacancies to be reduced so as to make it substantially equal to that of a partially stabilized zirconia. Preferably, said trivalent oxide is present with a molar content constituted by a first portion enabling the zirconia to be stabilized partially and a second portion which introduces point defects into the lattice said pentavalent oxide is present with a molar concentration equal to said molar concentration of said second portion of the trivalent oxide. The invention is applicable to making a superalloy machine part having a ceramic coating with said composition, and possibly also a bonding underlayer.Type: ApplicationFiled: August 5, 2004Publication date: March 24, 2005Applicants: SNECMA MOTEURS, SNECMA SERVICESInventors: Berangere Leclercq, Remy Mevrel, Alban Azzopardi, Andre Malie, Bertrand Saint-Ramond
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Publication number: 20040247922Abstract: A composite target is placed in a chamber. The target is in the form of a bar made of ceramic powder and it presents composition that is not uniform in the longitudinal direction. At least one substrate is introduced into the chamber in order to have formed thereon a ceramic coating with a composition gradient. The top face of the bar is swept by an electron beam so as to melt the bar material at its top face and form a vapor cloud in the chamber under low pressure. A bar is used that presents a plurality of superposed layers of different compositions, with the composition within each layer being uniform over the entire cross-section of the bar. Each layer of the bar comprises zirconia and at least one oxide selected from the oxides of nickel, cobalt, iron, yttrium, hafnium, cerium, lanthanum, tantalum, niobium, scandium, samarium, gadolinium, dysprosium, ytterbium, and aluminum.Type: ApplicationFiled: July 14, 2004Publication date: December 9, 2004Applicant: SNECMA MOTEURSInventors: Christophe Chaput, Cyrille Delage, Andre Malie, Isabelle Porte, Bertrand Saint-Ramond
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Patent number: 6808761Abstract: A composite target is placed in a chamber. The target is in the form of a bar made of ceramic powder and it presents composition that is not uniform in the longitudinal direction. At least one substrate is introduced into the chamber in order to have formed thereon a ceramic coating with a composition gradient. The top face of the bar is swept by an electron beam so as to melt the bar material at its top face and form a vapor cloud in the chamber under low pressure. A bar is used that presents a plurality of superposed layers of different compositions, with the composition within each layer being uniform over the entire cross-section of the bar. Each layer of the bar comprises zirconia and at least one oxide selected from the oxides of nickel, cobalt, iron, yttrium, hafnium, cerium, lanthanum, tantalum, niobium, scandium, samarium, gadolinium, dysprosium, ytterbium, and aluminum.Type: GrantFiled: April 17, 2003Date of Patent: October 26, 2004Assignee: Snecma MoteursInventors: Christophe Chaput, Cyrille Delage, André Malie, Isabelle Porte, Bertrand Saint-Ramond
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Publication number: 20040058200Abstract: A composite target is placed in a chamber. The target is in the form of a bar made of ceramic powder and it presents composition that is not uniform in the longitudinal direction. At least one substrate is introduced into the chamber in order to have formed thereon a ceramic coating with a composition gradient. The top face of the bar is swept by an electron beam so as to melt the bar material at its top face and form a vapor cloud in the chamber under low pressure. A bar is used that presents a plurality of superposed layers of different compositions, with the composition within each layer being uniform over the entire cross-section of the bar. Each layer of the bar comprises zirconia and at least one oxide selected from the oxides of nickel, cobalt, iron, yttrium, hafnium, cerium, lanthanum, tantalum, niobium, scandium, samarium, gadolinium, dysprosium, ytterbium, and aluminum.Type: ApplicationFiled: April 17, 2003Publication date: March 25, 2004Applicant: SNECMA MOTEURSInventors: Christophe Chaput, Cyrille Delage, Andre Malie, Isabelle Porte, Bertrand Saint-Ramond
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Publication number: 20030200835Abstract: A diffusion-brazing filler powder for a part made of a nickel-, cobalt- or iron-based alloy A comprising particles of a defined alloy material B having specific functional properties tailored to the area of application of said part. The particles are substantially spherical and carry, on their surfaces, in the form of incrustations, add-ons comprising at least one fluxing element taken from the group: boron and silicon, these encrusted add-ons also being present in a free state in said powder.Type: ApplicationFiled: April 11, 2003Publication date: October 30, 2003Applicant: SNECMA SERVICESInventors: Andre Malie, Pascal Etuve, Christian Michel, Frederic Jacquot
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Patent number: 6391252Abstract: The present invention concern a method using powder metallurgy for producing molded parts intended to be assembled by self-brazing to metal parts capable of receiving them and said receiving parts. The method comprises forming a homogenous mixture of a basic metal powder, brazing powder and a liquid binding agent which is injection molded to form a self-brazing part.Type: GrantFiled: July 7, 2000Date of Patent: May 21, 2002Assignees: Metal Process Systems, Snecma ServicesInventors: François David, Yves Leroy, Jean-Pierre Huchin, André Malie