公开(公告)号：US11104994B2

公开(公告)日：2021-08-31

申请号：US16337662

申请日：2017-09-28

Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

Inventor： Frédéric Schuster ,  Fernando Lomello ,  Francis Maury ,  Alexandre Michau ,  Raphaël Boichot ,  Michel Pons

IPC: C23C16/448 ,  C23C16/18 ,  C23C16/56 ,  C23C16/32 ,  C23C16/34 ,  C23C16/36 ,  G21C3/07

Abstract: Process for manufacturing a nuclear component that includes i) a support containing a substrate based on a metal, the substrate being coated or not coated with an interposed layer positioned between the substrate and at least one protective layer and ii) the protective layer composed of a protective material including partially metastable chromium; the process includes a step a) of vaporizing a mother solution followed by a step b) of depositing the protective layer onto the support via a process of chemical vapor deposition of an organometallic compound by direct liquid injection (DLI-MOCVD).

公开(公告)号：US12084749B2

公开(公告)日：2024-09-10

申请号：US17091540

申请日：2020-11-06

Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

Inventor： Hicham Maskrot ,  Aziz Chniouel ,  Fernando Lomello ,  Pierre-François Giroux ,  Pascal Aubry

IPC: C22C33/02 ,  B22F1/054 ,  B22F10/00 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00

CPC classification number: C22C33/0285 ,  B22F1/054 ,  B22F10/00 ,  B22F2301/35 ,  B22F2304/054 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00

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 μm to 50 μm.
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.

公开(公告)号：US11634810B2

公开(公告)日：2023-04-25

申请号：US16337623

申请日：2017-09-28

Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

Inventor： Frédéric Schuster ,  Fernando Lomello ,  Francis Maury ,  Alexandre Michau ,  Raphaël Boichot ,  Michel Pons

IPC: C23C16/18 ,  C23C16/02 ,  C23C16/10 ,  C23C16/32 ,  C23C16/34 ,  C23C16/36 ,  C23C16/448 ,  C23C16/56 ,  G21C3/07 ,  G21C3/20

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).

公开(公告)号：US11591680B2

公开(公告)日：2023-02-28

申请号：US17091446

申请日：2020-11-06

Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

Inventor： Aziz Chniouel ,  Hicham Maskrot ,  Fernando Lomello ,  Pierre-François Giroux ,  Pascal Aubry

IPC: B33Y70/00 ,  C22C38/40 ,  C22C38/52 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/42 ,  C22C38/44 ,  C22C38/50 ,  B33Y80/00

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 μm and 50 μm.
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.

公开(公告)号：US11142822B2

公开(公告)日：2021-10-12

申请号：US16669854

申请日：2019-10-31

Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

Inventor： Frédéric Schuster ,  Francis Maury ,  Alexandre Michau ,  Michel Pons ,  Raphaël Boichot ,  Fernando Lomello

IPC: C23C16/448 ,  C23C16/18 ,  C23C16/32 ,  C23C16/44 ,  B01D5/00 ,  B01D8/00

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).

公开(公告)号：US11545273B2

公开(公告)日：2023-01-03

申请号：US17022866

申请日：2020-09-16

Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

Inventor： Frédéric Schuster ,  Fernando Lomello ,  Francis Maury ,  Alexandre Michau ,  Raphaël Boichot ,  Michel Pons

IPC: G21C3/20 ,  G21C3/34 ,  G21C5/18 ,  G21C7/10 ,  G21C3/07 ,  C23C16/02 ,  C23C16/04 ,  C23C16/34 ,  C23C16/448 ,  C23C16/56 ,  G21C3/326 ,  G21C3/36

Abstract: A composite nuclear reactor component comprises a support and a protective layer (2). The support contains a substrate (1) based on a metal. The substrate is coated with an interposed layer (3) positioned between the substrate (1) and the protective layer (2). The protective layer (2) is composed of a material which comprises amorphous chromium carbide. The nuclear reactor component provides for improved resistance to oxidation, hydriding, and/or migration of undesired material.

公开(公告)号：US20210140022A1

公开(公告)日：2021-05-13

申请号：US17091446

申请日：2020-11-06

Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

Inventor： Aziz Chniouel ,  Hicham Maskrot ,  Fernando Lomello ,  Pierre-François Giroux ,  Pascal Aubry

IPC: C22C38/52 ,  C22C38/50 ,  C22C38/44 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/42

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 μm and 50 μm.
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.

公开(公告)号：US10811146B2

公开(公告)日：2020-10-20

申请号：US16337647

申请日：2017-09-28

Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

Inventor： Frédéric Schuster ,  Fernando Lomello ,  Francis Maury ,  Alexandre Michau ,  Raphaël Boichot ,  Michel Pons

IPC: G21C5/18 ,  C23C16/02 ,  C23C16/04 ,  C23C16/34 ,  C23C16/448 ,  C23C16/56 ,  G21C3/20 ,  G21C3/326 ,  G21C3/34 ,  G21C7/10

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).

公开(公告)号：US12123079B2

公开(公告)日：2024-10-22

申请号：US17052076

申请日：2019-05-03

Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

Inventor： Elodie Vasquez ,  Pierre-François Giroux ,  Fernando Lomello ,  Hicham Maskrot ,  Yann Leconte ,  Frédéric Schuster ,  Khalil Abdelkebir

IPC: C22C32/00 ,  B22F1/065 ,  B22F9/14 ,  C22C1/04 ,  C22C1/10 ,  C22C19/00 ,  C22C21/08 ,  C22C33/02 ,  C22C38/06 ,  C22C38/18

CPC classification number: C22C32/0026 ,  B22F1/065 ,  B22F9/14 ,  C22C1/0416 ,  C22C1/0433 ,  C22C1/1084 ,  C22C19/007 ,  C22C21/08 ,  C22C33/02 ,  C22C33/0261 ,  C22C38/06 ,  C22C38/18 ,  B22F2202/13 ,  C22C2200/00

Abstract: A method for producing a reinforced alloy powder containing a metal matrix in which crystalline oxide particles are dispersed, including: (i) providing a powder mixture including a parent metal powder including a master alloy for forming the metal matrix and an additional powder including an intermediate; (ii) milling the powder mixture by a mechanical synthesis process to make a precursor powder; and (iii) subjecting the precursor powder to a thermal plasma generated by a plasma torch including a plasma gas. The master alloy is iron-based, nickel-based, or aluminum-based. The intermediate is at least one of YFe3, Y2O3, Fe2O3, Fe2Ti, FeCrWTi, TiH2, TiO2, Al2O3, HfO2, SiO2, ZrO2, ThO2, and MgO. In (iii), the precursor powder is injected into the plasma torch at a flow rate of 10-30 g/min, a power of the plasma torch is 20-40 kW, and a pressure in a reaction chamber of the plasma torch is 25-100 kPa.

公开(公告)号：US12109611B2

公开(公告)日：2024-10-08

申请号：US17091584

申请日：2020-11-06

Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

Inventor： Olivier Hercher ,  Marine Chaussiniac ,  Jérôme Pradel ,  Aziz Chniouel ,  Hicham Maskrot ,  Fernando Lomello ,  Pierre-François Giroux ,  Pascal Aubry

IPC: B22F10/00 ,  B22F1/06 ,  B22F3/15 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  C22C38/00 ,  C22C38/02 ,  C22C38/44 ,  C22C38/46 ,  C22C38/58

CPC classification number: B22F10/00 ,  B22F1/06 ,  B22F3/15 ,  B33Y80/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/44 ,  C22C38/46 ,  C22C38/58 ,  B22F2301/35 ,  B33Y10/00 ,  B33Y70/00 ,  C21D2211/001

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 μm and 50 μm.
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.