Patents by Inventor Fernando LOMELLO

Fernando LOMELLO 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).

  • Publication number: 20210230722
    Abstract: A method for producing a powder of a reinforced alloy (ODS alloy) in which the grains forming the particles of the powder comprise a metal matrix, in the volume of which crystalline oxide particles are dispersed, said method comprising the following successive steps: i) providing a powder mixture to be milled comprising a master alloy intended to form the metal matrix and an additional powder comprising at least one intermediate intended to incorporate atoms intended to form the dispersed oxide particles; ii) milling the powder mixture according to a mechanical synthesis process for making a precursor powder; iii) subjecting the precursor powder to a thermal plasma generated by a plasma torch comprising a plasma gas, in order to obtain the reinforced alloy powder. The method of the invention is particularly suitable for producing an ODS alloy that has optimized characteristics of composition and/or microstructure.
    Type: Application
    Filed: May 3, 2019
    Publication date: July 29, 2021
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Elodie VASQUEZ, Pierre-François GIROUX, Fernando LOMELLO, Hicham MASKROT, Yann LECONTE, Frédéric SCHUSTER, Khalil ABDELKEBIR
  • Publication number: 20210138544
    Abstract: Process for the treatment of a steel material, wherein the grains of which it is composed comprise a matrix into which precipitates are incorporated, the precipitates comprising at least one metallic element selected from a metallic element M, a metallic element M?, a metallic element M? or mixtures thereof; the microstructure of the steel being such that the grains are equiaxial and the average size of the grains being such that the average of their largest dimension “Dmax” and/or the average of their smallest dimension “Dmin” is in the range 10 ?m to 50 ?m. The steel material has optimised, stable and isotropic mechanical properties, in particular so that the steel material is more resistant to mechanical and/or thermal stresses.
    Type: Application
    Filed: November 6, 2020
    Publication date: May 13, 2021
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Aziz CHNIOUEL, Hicham MASKROT, Fernando LOMELLO, Pierre-François GIROUX, Pascal AUBRY
  • Publication number: 20210140022
    Abstract: Steel material whose constituent grains comprise a matrix in which precipitates are incorporated, the precipitates comprising at least one metallic element selected from a metallic element M, a metallic element M?, a metallic element M? or mixtures thereof; the microstructure of the steel being such that the grains are equiaxed and the average grain size being such that the average of their largest dimension “Dmax” and/or the average of their smallest dimension “Dmin” is comprised between 10 ?m and 50 ?m. The steel material has optimized, stable and isotropic mechanical properties, in particular so that the steel material can best withstand mechanical and/or thermal stresses.
    Type: Application
    Filed: November 6, 2020
    Publication date: May 13, 2021
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Aziz Chniouel, Hicham Maskrot, Fernando Lomello, Pierre-François Giroux, Pascal Aubry
  • Publication number: 20210140025
    Abstract: Part comprising a steel material whose constituent grains comprise a matrix in which precipitates are incorporated, the precipitates comprising at least one metallic element selected from a metallic element M, a metallic element M?, a metallic element M? or mixtures thereof; the microstructure of the steel being such that the grains are equiaxed and the average grain size being such that the average of their largest dimension “D max” and/or the average of their smallest dimension “D min” is comprised between 10 ?m and 50 ?m. The steel material has optimised, stable and isotropic mechanical properties, in particular so that the steel material can best withstand mechanical and/or thermal stresses.
    Type: Application
    Filed: November 6, 2020
    Publication date: May 13, 2021
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Olivier HERCHER, Marine CHAUSSINIAC, Jérôme PRADEL, Aziz CHNIOUEL, Hicham MASKROT, Fernando LOMELLO, Pierre-François GIROUX, Pascal AUBRY
  • Publication number: 20210138543
    Abstract: Process for the manufacture of a steel material, wherein the grains of which it is composed comprise a matrix into which precipitates are incorporated, the precipitates comprising at least one metallic element selected from a metallic element M, a metallic element M?, a metallic element M? or mixtures thereof; the microstructure of the steel being such that the grains are equiaxial and the average size of the grains being such that the average of their largest dimension “Dmax” and/or the average of their smallest dimension “Dmin” is in the range 10 ?m to 50 ?m. The steel material has optimised, stable and isotropic mechanical properties, in particular so that the steel material is more resistant to mechanical and/or thermal stresses.
    Type: Application
    Filed: November 6, 2020
    Publication date: May 13, 2021
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Hicham MASKROT, Aziz CHNIOUEL, Fernando LOMELLO, Pierre-François GIROUX, Pascal AUBRY
  • Publication number: 20210074439
    Abstract: Process for manufacturing a nuclear component comprising i) a support containing a substrate based on a metal (1), the substrate (1) being coated or not coated with an interposed layer (3) positioned between the substrate (1) and at least one protective layer (2) and ii) the protective layer (2) composed of a protective material comprising amorphous chromium carbide; the process comprising a step a) of vaporizing a mother solution followed by a step b) of depositing the protective layer (2) onto the support via a process of chemical vapor deposition of an organometallic compound by direct liquid injection (DLI-MOCVD). Nuclear component comprising i) a support containing a substrate based on a metal, the substrate (1) being coated or not coated with an interposed layer (3) positioned between the substrate (1) and at least one protective layer (2) and ii) the protective layer (2) composed of a protective material comprising amorphous chromium carbide.
    Type: Application
    Filed: September 16, 2020
    Publication date: March 11, 2021
    Inventors: Frédéric SCHUSTER, Fernando LOMELLO, Francis MAURY, Alexandre MICHAU, Raphaël BOICHOT, Michel PONS
  • Patent number: 10811146
    Abstract: Process for manufacturing a nuclear component comprising i) a support containing a substrate based on a metal (1), the substrate (1) being coated or not coated with an interposed layer (3) positioned between the substrate (1) and at least one protective layer (2) and ii) the protective layer (2) composed of a protective material comprising amorphous chromium carbide; the process comprising a step a) of vaporizing a mother solution followed by a step b) of depositing the protective layer (2) onto the support via a process of chemical vapor deposition of an organometallic compound by direct liquid injection (DLI-MOCVD).
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: October 20, 2020
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Frédéric Schuster, Fernando Lomello, Francis Maury, Alexandre Michau, Raphaël Boichot, Michel Pons
  • Publication number: 20200232094
    Abstract: Process for manufacturing a nuclear component comprising i) a support containing a substrate based on a metal (1), the substrate (1) being coated or not coated with an interposed layer (3) positioned between the substrate (1) and at least one protective layer (2) and ii) the protective layer (2) composed of a protective material comprising partially metastable chromium; the process comprising a step a) of vaporizing a mother solution followed by a step b) of depositing the protective layer (2) onto the support via a process of chemical vapor deposition of an organometallic compound by direct liquid injection (DLI-MOCVD). Nuclear component comprising i) a support containing a substrate based on a metal, the substrate (1) being coated or not coated with an interposed layer (3) positioned between the substrate (1) and at least one protective layer (2) and ii) the protective layer (2) composed of a protective material comprising partially metastable chromium.
    Type: Application
    Filed: September 28, 2017
    Publication date: July 23, 2020
    Inventors: Frédéric SCHUSTER, Fernando LOMELLO, Francis MAURY, Alexandre MICHAU, Raphaël BOICHOT, Michel PONS
  • Publication number: 20200123655
    Abstract: Process for the chemical vapor deposition by DLI-MOCVD on a substrate of a protective coating composed of at least one protective layer comprising a transition metal M: a) having available, in a feed tank, a mother solution containing a hydrocarbon solvent devoid of oxygen atom and a precursor of bis(arene) type containing the transition metal M to be deposited, and, if appropriate, a carbon-incorporation inhibitor; b) vaporizing said mother solution and introducing it into a CVD reactor in order to carry out the deposition of the protective layer on said substrate; c) collecting, at the outlet of the reactor, a fraction of the gaseous effluent comprising the unconsumed precursor, the aromatic byproducts of the precursor and the solvent, these entities together forming a daughter solution, and; d) pouring the daughter solution thus obtained into the feed tank in order to obtain a new mother solution capable of being used in step a).
    Type: Application
    Filed: October 31, 2019
    Publication date: April 23, 2020
    Inventors: Frédéric SCHUSTER, Francis MAURY, Alexandre MICHAU, Michel PONS, Raphaël BOICHOT, Fernando LOMELLO
  • Publication number: 20200035369
    Abstract: Process for manufacturing a nuclear component comprising i) a support containing a substrate based on a metal (1), the substrate (1) being coated or not coated with an interposed layer (3) positioned between the substrate (1) and at least one protective layer (2) and ii) the protective layer (2) composed of a protective material comprising amorphous chromium carbide; the process comprising a step a) of vaporizing a mother solution followed by a step b) of depositing the protective layer (2) onto the support via a process of chemical vapor deposition of an organometallic compound by direct liquid injection (DLI-MOCVD). Nuclear component comprising i) a support containing a substrate based on a metal, the substrate (1) being coated or not coated with an interposed layer (3) positioned between the substrate (1) and at least one protective layer (2) and ii) the protective layer (2) composed of a protective material comprising amorphous chromium carbide.
    Type: Application
    Filed: September 28, 2017
    Publication date: January 30, 2020
    Inventors: Frédéric SCHUSTER, Fernando LOMELLO, Francis MAURY, Alexandre MICHAU, Raphaël BOICHOT, Michel PONS
  • Publication number: 20200032387
    Abstract: Process for manufacturing a nuclear component comprising i) a support containing a substrate based on a metal (1), the substrate (1) being coated or not coated with an interposed layer (3) positioned between the substrate (1) and at least one protective layer (2) and ii) the protective layer (2) composed of a protective material comprising chromium; the process comprising a step a) of vaporizing a mother solution followed by a step b) of depositing the protective layer (2) onto the support via a process of chemical vapor deposition of an organometallic compound by direct liquid injection (DLI-MOCVD). Nuclear component comprising i) a support containing a substrate based on a metal, the substrate (1) being coated or not coated with an interposed layer (3) positioned between the substrate (1) and at least one protective layer (2) and ii) the protective layer (2) composed of a protective material comprising chromium.
    Type: Application
    Filed: September 28, 2017
    Publication date: January 30, 2020
    Inventors: Frédéric SCHUSTER, Fernando LOMELLO, Francis MAURY, Alexandre MICHAU, Raphaël BOICHOT, Michel PONS
  • Publication number: 20200020456
    Abstract: Process for manufacturing a composite nuclear component comprising i) a support containing a substrate comprising a metallic material and a ceramic material (1), the substrate (1) being coated or not coated with an interposed layer (3) positioned between the substrate (1) and at least one protective layer (2) and ii) the protective layer (2) composed of a protective material comprising chromium; the process comprising a step a) of vaporizing a mother solution followed by a step b) of depositing the protective layer (2) onto the support via a DLI-MOCVD deposition process.
    Type: Application
    Filed: September 28, 2017
    Publication date: January 16, 2020
    Inventors: Frédéric SCHUSTER, Fernando LOMELLO, Francis MAURY, Alexandre MICHAU, Raphaël BOICHOT, Michel PONS
  • Publication number: 20190003048
    Abstract: Process for the chemical vapor deposition by DLI-MOCVD on a substrate of a protective coating composed of at least one protective layer comprising a transition metal M: a) having available, in a feed tank, a mother solution containing a hydrocarbon solvent devoid of oxygen atom and a precursor of bis(arene) type containing the transition metal M to be deposited, and, if appropriate, a carbon-incorporation inhibitor; b) vaporizing said mother solution and introducing it into a CVD reactor in order to carry out the deposition of the protective layer on said substrate; c) collecting, at the outlet of the reactor, a fraction of the gaseous effluent comprising the unconsumed precursor, the aromatic byproducts of the precursor and the solvent, these entities together forming a daughter solution, and; d) pouring the daughter solution thus obtained into the feed tank in order to obtain a new mother solution capable of being used in step a).
    Type: Application
    Filed: December 17, 2016
    Publication date: January 3, 2019
    Inventors: Frédéric SCHUSTER, Francis MAURY, Alexandre MICHAU, Michel PONS, Raphaël BOICHOT, Fernando LOMELLO
  • Publication number: 20170287578
    Abstract: The invention relates to a nuclear fuel cladding comprising: i) a substrate containing a zirconium-based inner layer, optionally coated with at least one intermediate layer formed by at least one intermediate material selected from among tantalum, molybdenum, tungsten, niobium, vanadium, hafnium or the alloys thereof; and ii) at least one protective outer layer placed on the substrate and formed by a protective material selected from either chromium or an alloy of chromium. The nuclear fuel cladding produced using the method of the invention has improved resistance to oxidation/hydriding. The invention also relates to the method for the production of the nuclear fuel cladding by ion etching of the surface of the substrate and deposition of the outer layer on the substrate with a high power impulse magnetron sputtering method (HiPIMS), as well as to the use thereof to protect against oxidation and/or hydriding.
    Type: Application
    Filed: March 17, 2017
    Publication date: October 5, 2017
    Inventors: Jean-Christophe BRACHET, Alain BILLARD, Fédéric SCHUSTER, Marion LE FLEM, Isabel IDARRAGA-TRUJILLO, Matthieu LE SAUX, Fernando LOMELLO