Powder core-shell structures and methods therefor

    公开(公告)号:US12226832B2

    公开(公告)日:2025-02-18

    申请号:US17872453

    申请日:2022-07-25

    Abstract: Aspects of the disclosure are directed to metal-based materials, their manufacture and their use. Certain embodiments involve providing powder in a metal-based foil/shell, and forming a tube from the foil/shell with the powder therein. The tube thus has a metal-based foil shell filled with the powder. Metal wire may be formed by rolling the tube filled with the powder and reducing the diameter of the tube. Certain embodiments are directed to the structure of such a tube prior to wire formation, and other embodiments are directed to the metal wire itself.

    Metallic powders and methods therefor

    公开(公告)号:US12172216B2

    公开(公告)日:2024-12-24

    申请号:US17893874

    申请日:2022-08-23

    Abstract: Aspects of the disclosure are directed to methods and/or apparatuses involving the formation of pore-free or nearly pore-free liquid droplets. As may be implemented in accordance with one or more embodiments, liquid droplets including metal are formed having pores within the liquid droplets. This may involve, for example, atomizing liquid metal with a gas and forming the droplets having pores. The pores are then driven out of the liquid droplets by heating the liquid droplets from a first state in which an outer surface of the droplets has a lower temperature than an inner region thereof, to a second state in which the outer surface has a higher temperature than the inner region.

    Powder spreader
    10.
    发明授权

    公开(公告)号:US12049042B2

    公开(公告)日:2024-07-30

    申请号:US17694378

    申请日:2022-03-14

    CPC classification number: B29C64/218 B29C64/153 B33Y10/00 B33Y30/00

    Abstract: Aspects of the disclosure are directed to powder spreading and an apparatus therefor. As may be implemented in accordance with one or more embodiments, an apparatus having a flexible core and a shell on a surface of the core is used to displace powder in a powder bed. The shell has a low coefficient of friction, for example on the order of 0.10, and may operate to conduct static electricity away from the powder. The shell may be engaged with the powder to displace the powder and form a uniform powder layer having a planer upper surface, as the core is advanced across the powder bed.

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