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    ELECTRODES FOR ALUMINUM ELECTROLYSIS CELLS AND METHODS OF MAKING THE SAME
    1.
    发明申请
    ELECTRODES FOR ALUMINUM ELECTROLYSIS CELLS AND METHODS OF MAKING THE SAME 有权

    公开(公告)号：US20240425378A1

    公开(公告)日：2024-12-26

    申请号：US18829880

    申请日：2024-09-10

    Applicant: ALCOA USA CORP.

    Inventor： James C. McMillen ,  Lance M. Sworts ,  Benjamin D. Mosser

    IPC: C01B35/04 ,  C25C3/08

    Abstract: The present disclosure relates to methods of making electrodes for use in electrolysis cells. The method may include forming a TiB2 feedstock into a predetermined shaped product to realize an appropriate density. The method may also include producing a final shaped product from the predetermined shaped product by exposing the predetermined shaped product to elevated temperature. Due to the exposing step, the final shaped product may have a plurality of pores and may realize one or more properties and/or characteristics.

    SYSTEMS AND METHODS FOR MAKING CERAMIC POWDERS
    2.
    发明申请
    SYSTEMS AND METHODS FOR MAKING CERAMIC POWDERS 审中-公开

    公开(公告)号：US20190135703A1

    公开(公告)日：2019-05-09

    申请号：US16241517

    申请日：2019-01-07

    Applicant: ALCOA USA CORP.

    Inventor： James C. McMillen ,  Lance M. Sworts ,  Benjamin D. Mosser ,  Charles Robert Shanta, III

    IPC: C04B35/626 ,  C04B35/58 ,  B01J8/08

    Abstract: Systems and methods for making ceramic powders configured with consistent, tailored characteristics and/or properties are provided herein. In some embodiments a system for making ceramic powders, includes: a reactor body having a reaction chamber and configured with a heat source to provide a hot zone along the reaction chamber; a sweep gas inlet configured to direct a sweep gas into the reaction chamber and a sweep gas outlet configured to direct an exhaust gas from the reaction chamber; a plurality of containers, within the reactor body, configured to retain at least one preform, wherein each container is configured to permit the sweep gas to flow therethrough, wherein the preform is configured to permit the sweep gas to flow there through, such that the precursor mixture is reacted in the hot zone to form a ceramic powder product having uniform properties.

    SYSTEMS AND METHODS FOR MAKING CERAMIC POWDERS
    3.
    发明申请
    SYSTEMS AND METHODS FOR MAKING CERAMIC POWDERS 有权

    公开(公告)号：US20210355037A1

    公开(公告)日：2021-11-18

    申请号：US17443603

    申请日：2021-07-27

    Applicant: ALCOA USA CORP.

    Inventor： James C. McMillen ,  Lance M. Sworts ,  Benjamin D. Mosser ,  Charles Robert Shanta, III

    IPC: C04B35/626 ,  B01J8/08 ,  C04B35/56 ,  B01J8/10 ,  C22C29/02 ,  C04B35/65 ,  C22C29/14 ,  C04B35/58 ,  C22C29/00

    Abstract: Systems and methods for making ceramic powders configured with consistent, tailored characteristics and/or properties are provided herein. In some embodiments a system for making ceramic powders, includes: a reactor body having a reaction chamber and configured with a heat source to provide a hot zone along the reaction chamber; a sweep gas inlet configured to direct a sweep gas into the reaction chamber and a sweep gas outlet configured to direct an exhaust gas from the reaction chamber; a plurality of containers, within the reactor body, configured to retain at least one preform, wherein each container is configured to permit the sweep gas to flow therethrough, wherein the preform is configured to permit the sweep gas to flow there through, such that the precursor mixture is reacted in the hot zone to form a ceramic powder product having uniform properties.

    Systems and methods for making ceramic powders
    4.
    发明授权
    Systems and methods for making ceramic powders 有权

    公开(公告)号：US11078124B2

    公开(公告)日：2021-08-03

    申请号：US16241517

    申请日：2019-01-07

    Applicant: ALCOA USA CORP.

    Inventor： James C. McMillen ,  Lance M. Sworts ,  Benjamin D. Mosser ,  Charles Robert Shanta, III

    IPC: C04B35/626 ,  C04B35/58 ,  B01J8/08 ,  C04B35/56 ,  B01J8/10 ,  C22C29/02 ,  C04B35/65 ,  C22C29/14 ,  C22C29/00

    Abstract: Systems and methods for making ceramic powders configured with consistent, tailored characteristics and/or properties are provided herein. In some embodiments a system for making ceramic powders, includes: a reactor body having a reaction chamber and configured with a heat source to provide a hot zone along the reaction chamber; a sweep gas inlet configured to direct a sweep gas into the reaction chamber and a sweep gas outlet configured to direct an exhaust gas from the reaction chamber; a plurality of containers, within the reactor body, configured to retain at least one preform, wherein each container is configured to permit the sweep gas to flow therethrough, wherein the preform is configured to permit the sweep gas to flow there through, such that the precursor mixture is reacted in the hot zone to form a ceramic powder product having uniform properties.

    Methods of making titanium diboride powders
    6.
    发明授权
    Methods of making titanium diboride powders 有权

    公开(公告)号：US09802829B2

    公开(公告)日：2017-10-31

    申请号：US15297997

    申请日：2016-10-19

    Applicant: ALCOA USA CORP

    Inventor： James C. McMillen

    IPC: C01B35/04

    CPC classification number: C01B35/04 ,  C01P2004/03 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2006/12

    Abstract: The present disclosure is directed towards methods of making titanium diboride products in various sizes. An aspect of the method provides (a) selecting a target average particle size for a target titanium diboride product; (b) selecting at least one processing variable from the group consisting of: an amount of sulfur, an inert gas flow rate, a soak time, and a reaction temperature; (c) selecting a condition of the processing variable based upon the target average particle size; and (d) producing an actual titanium diboride product having an actual average particle size using the at least one processing variable, wherein due to the at least one processing variable, the actual average particle size corresponds to the target average particle size.

    SYSTEMS AND METHODS FOR MAKING CERAMIC POWDERS AND CERAMIC PRODUCTS
    9.
    发明申请
    SYSTEMS AND METHODS FOR MAKING CERAMIC POWDERS AND CERAMIC PRODUCTS 审中-公开

    公开(公告)号：US20190127282A1

    公开(公告)日：2019-05-02

    申请号：US16228295

    申请日：2018-12-20

    Applicant: ALCOA USA CORP.

    Inventor： James C. McMillen ,  Lance M. Sworts ,  Benjamin D. Mosser

    IPC: C04B35/58 ,  C04B35/626 ,  C01B35/04

    Abstract: Systems and methods for making ceramic powders are provided. The method for forming a ceramic powder includes: preparing a precursor mixture, wherein the preparing comprises adding at least one additive to a plurality of reagents, wherein the at least one additive includes at least one of: an oxide, a salt, a pure metal, or an alloy of elements ranging from atomic numbers 21 through 30, 39 through 51, and 57 through 77 and combinations thereof; and carbothermically reacting the precursor mixture to form a ceramic powder, wherein, due to the preparing step, the precursor mixture comprises a sufficient amount of the at least one additive to form the ceramic powder, wherein the ceramic powder comprises: (a) a morphology selected from the group consisting of irregular, equiaxed, plate-like, and combinations thereof; and (b) a particle size distribution selected from the group consisting of fine, intermediate, coarse, and combinations thereof.

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