Patents by Inventor Hicham Maskrot
Hicham Maskrot 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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Publication number: 20230364683Abstract: A method for determining an oxygen concentration of a powder of a metallic material taking the form of a powder bed, the method includes steps consisting in: A) producing an image of at least a part of the powder bed, the image comprising a set of pixels, a pixel having a colour coded in accordance with a colorimetric code comprising three quantities, B) determining the oxygen concentration of the powder from values of the three quantities associated with pixels of the image using a predefined calibration function, a function of the material, and linking the oxygen concentration and the three quantities.Type: ApplicationFiled: May 12, 2023Publication date: November 16, 2023Inventors: Timothée DELACROIX, Jean-Paul GARANDET, Hicham MASKROT, Frédéric SCHUSTER, Fernando LOMELLO
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Publication number: 20230332289Abstract: A precursor diffusion device configured to diffuse a growth precursor towards an external growth surface included on an external growth member, the diffusion device including a container including at least one porous element having a porosity configured to allow or prevent the passage of a precursor fluid through a thickness of the porous element, the porous element being configured so that the precursor fluid which passes through the thickness of the porous element generates an aerosol by fragmentation of the precursor fluid, the aerosol being formed of droplets of the precursor fluid. Also, a method for depositing a layer on a growth surface by such a diffusion device.Type: ApplicationFiled: March 24, 2023Publication date: October 19, 2023Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Hicham MASKROT, Alexandre MICHAU, Olivier HERCHER
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Patent number: 11768165Abstract: A non-destructive method for characterizing and monitoring the homogeneity of metal parts which are being manufactured by sintering and comprise several distinct zones. Laser radiation is applied successively to each zone and each sintered zone is analyzed simultaneously in real time by lock-in laser-active radiometry.Type: GrantFiled: December 18, 2018Date of Patent: September 26, 2023Assignee: COMMISSARIAT Á L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVESInventors: Hicham Maskrot, Alexandre Semerok
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Publication number: 20230191485Abstract: The invention relates to a method for integrating a sensor into a metal part, including: a)—the creation by additive printing of a first part (2) of the part, including a volume (4) for housing a sensor, this volume having a width greater than that of the sensor; b)—the deposition of the sensor in said housing volume; c)—the creation by additive printing of a second part (6) of the part, covering the sensor and the formation of a molten puddle in the housing volume (4), on either side of the sensor.Type: ApplicationFiled: December 16, 2022Publication date: June 22, 2023Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Quentin POUILLE, Ayoub LADACI, Fernando LOMELLO, Guy CHEYMOL, Hicham MASKROT EL IDRISSI
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Publication number: 20230182052Abstract: A metallic filter (1) includes a microstructured architecture (2) defined in a three-dimensional space having orthogonal axes, microstructured architecture (2) includes a metallic network (10) formed by a plurality of longitudinal connecting strands (12), namely extending along a longitudinal axis direction (X), and a network (20) of pores formed of a plurality of longitudinal interstices (22) located along connecting strands (12). Each longitudinal interstice corresponding to a subset of pores (24) of the network (20) of pores. The subset of pores (24) for which the pores are aligned along the longitudinal axis (X), the longitudinal interstices (22) thereby defining an axis of anisotropy of the microstructured architecture.Type: ApplicationFiled: December 7, 2022Publication date: June 15, 2023Inventors: Hicham MASKROT, Olivier HERCHER, Frédéric SCHUSTER, Alexandre MICHAU
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Publication number: 20230182204Abstract: A part including a porous structure including cellular pores and formed at least in part by the periodic repetition of a basic pattern, each cellular pore being delimited by a wall, made of a metal or a polymer, having a parietal porosity greater than 5% and including parietal pores with a mean size less than the mean size of the cellular pores.Type: ApplicationFiled: December 5, 2022Publication date: June 15, 2023Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Hicham MASKROT, Olivier HERCHER
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Patent number: 11591680Abstract: 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: GrantFiled: November 6, 2020Date of Patent: February 28, 2023Assignee: COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Aziz Chniouel, Hicham Maskrot, Fernando Lomello, Pierre-François Giroux, Pascal Aubry
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Publication number: 20220203281Abstract: A manufacturing method enabling the obtainment of a functional part essentially formed in a metallic material, all or part of the functional part delimiting a filtering medium permeable to a fluid and delimiting first and second main faces for a preferred circulation of the gas through the filtering medium. The method includes a main phase consisting of an additive manufacturing method in successive passes from a support tray. Each pass includes the deposition of at least one layer of the metallic material, the deposited material adhering to the metallic material deposited before. The deposition is controlled at each pass so the stack of metallic material constitutes the functional part. The filtering medium includes a coalescent network of connecting strands interconnected according to a three-dimensional spatial distribution between the faces, the connecting strands of the network delimiting therebetween pores spatially distributed within the filtering medium in three dimensions between the faces.Type: ApplicationFiled: December 30, 2021Publication date: June 30, 2022Applicant: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Hicham MASKROT, Olivier HERCHER, Frédéric SCHUSTER
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Publication number: 20210230722Abstract: 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: ApplicationFiled: May 3, 2019Publication date: July 29, 2021Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Elodie VASQUEZ, Pierre-François GIROUX, Fernando LOMELLO, Hicham MASKROT, Yann LECONTE, Frédéric SCHUSTER, Khalil ABDELKEBIR
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Publication number: 20210140025Abstract: 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: ApplicationFiled: November 6, 2020Publication date: May 13, 2021Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Olivier HERCHER, Marine CHAUSSINIAC, Jérôme PRADEL, Aziz CHNIOUEL, Hicham MASKROT, Fernando LOMELLO, Pierre-François GIROUX, Pascal AUBRY
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Publication number: 20210138543Abstract: 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: ApplicationFiled: November 6, 2020Publication date: May 13, 2021Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Hicham MASKROT, Aziz CHNIOUEL, Fernando LOMELLO, Pierre-François GIROUX, Pascal AUBRY
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Publication number: 20210140022Abstract: 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: ApplicationFiled: November 6, 2020Publication date: May 13, 2021Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Aziz Chniouel, Hicham Maskrot, Fernando Lomello, Pierre-François Giroux, Pascal Aubry
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Publication number: 20210138544Abstract: 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: ApplicationFiled: November 6, 2020Publication date: May 13, 2021Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Aziz CHNIOUEL, Hicham MASKROT, Fernando LOMELLO, Pierre-François GIROUX, Pascal AUBRY
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Publication number: 20210096090Abstract: A non-destructive method for characterizing and monitoring the homogeneity of metal parts which are being manufactured by sintering and comprise several distinct zones. Laser radiation is applied successively to each zone and each sintered zone is analyzed simultaneously in real time by lock-in laser-active radiometry.Type: ApplicationFiled: December 18, 2018Publication date: April 1, 2021Inventors: Hicham Maskrot, Alexandre Semerok
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Patent number: 9733189Abstract: The invention relates to a smoke analysis characterization cell employing optical spectroscopy, which comprises: a reaction chamber, an inlet orifice for injecting smoke into the reaction chamber; an outlet orifice for discharging the smoke from the reaction chamber; and an analysis window for the entry of a laser beam intended to form the plasma inside the reaction chamber, which cell is characterized in that the system further includes a blower for blowing an inert gas close to the analysis window; and a shielding gas injector for the shielded injection of the smoke into the reaction chamber, the shielding being provided by a jet of inert gas around the smoke.Type: GrantFiled: October 27, 2011Date of Patent: August 15, 2017Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Hicham Maskrot, Jean-Baptiste Sirven, Pascale Dewalle, Benoit Guizard
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Patent number: 9480964Abstract: A device and a method for producing suspensions or wet pastes of nanoparticles or ultra-fine particles. The method comprises: introducing a flow of particles of nanometric or submicronic size into a first compartment of a chamber having a bulk density between 15 and 100 g/L; forming, in the first compartment, a spray of droplets between 1 and 10 micrometers in size, by injecting a solvent in liquid or gas form into a second compartment of the device and passing said solvent through the filtering means, the solvent being chosen from the solvents which are liquid at ambient temperature and at atmospheric pressure; stopping the formation of the spray when the entire quantity of particles contained in the first compartment forms, as required, with the solvent, a suspension comprising between 80 and 99.Type: GrantFiled: September 20, 2011Date of Patent: November 1, 2016Assignee: Commissariat a L'Energie Atomique et aux Energies AlternativesInventors: Hicham Maskrot, Benoît Guizard
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Publication number: 20150344313Abstract: The invention concerns a method for controlling the production of nanopowder of a given diameter from at least acetylene contained in a pressurised cylinder, comprising defining the colour of the nanopowder and adjusting the rate of discharge from the pressurised cylinder of acetylene on the basis of the colour of the nanopowder. It also concerns a method for producing nanopowder of a given diameter and a given colour from at least acetylene contained in a pressurised cylinder; production being controlled using the abovementioned method.Type: ApplicationFiled: December 20, 2013Publication date: December 3, 2015Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Hicham Maskrot, Benoît Guizard, Youssef Atman
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Patent number: 9139478Abstract: A method is followed to prepare a powder that includes carbon, silicon and boron, the silicon being in silicon carbide form and the boron being in boron carbide and/or free boron form. The method includes contacting a carbon-based precursor, a silicon-based precursor and a boron-based precursor BX3, X being a halogen atom, to obtain a mixture of these three precursors. The resulting mixture is subjected to laser pyrolysis. The boron-based precursor BX3 is heated, prior to the contacting step and/or simultaneously with the contacting step, to a temperature higher than the condensation temperature of the precursor.Type: GrantFiled: April 29, 2010Date of Patent: September 22, 2015Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Hicham Maskrot, Benoit Guizard, Francois Tenegal
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Patent number: 9132482Abstract: A method of forming micrometric or millimetric sized granules by the agglomeration of nanometric sized particles, comprising the addition of a set of nanometric sized particles into a container having an inside wall surface with a circular or approximately circular section and setting the set of particles in motion along said inside wall surface by rotating the container about a rotation axis passing through said container. The setting in motion of the particles is done in a dry state and the container is rotated continuously at constant speed for several consecutive hours.Type: GrantFiled: December 9, 2011Date of Patent: September 15, 2015Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventor: Hicham Maskrot
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Patent number: 8821976Abstract: A method for elaborating carbon nanotubes on a substrate is provided. The method may comprise a step for growing on the substrate the nanotubes by chemical vapor deposition by having a stream comprising a carbon source, a precursor source of an oxide compound and, optionally a catalyst source, pass over the substrate.Type: GrantFiled: November 10, 2010Date of Patent: September 2, 2014Assignee: Commissariat a l'Energie Atomique et aux Energies AlternativesInventors: Cyrine Brahim, Hicham Maskrot