BARRIER COATINGS
    12.
    发明申请

    公开(公告)号:US20210024424A1

    公开(公告)日:2021-01-28

    申请号:US16522524

    申请日:2019-07-25

    Abstract: An example article includes a substrate and a barrier coating on the substrate extending from an inner interface facing the substrate to an outer surface opposite the inner interface. The barrier coating includes a bulk matrix and a plurality of discrete plugs inset within the bulk matrix and dispersed across the outer surface of the barrier coating. An example technique includes forming the barrier coating on the substrate of a component.

    REPAIR OF THROUGH-HOLE DAMAGE USING BRAZE SINTERED PREFORM

    公开(公告)号:US20200254548A1

    公开(公告)日:2020-08-13

    申请号:US16272664

    申请日:2019-02-11

    Abstract: A method may include removing a portion of a base component adjacent to a damaged portion of the base component to define a repair portion of the base component. The base component may include a cobalt- or nickel-based superalloy, and the repair portion of the base component may include a through-hole extending from a first surface of the base component to a second surface of the base component. The method also may include forming a braze sintered preform to substantially reproduce a shape of the through-hole. The braze sintered preform may include a Ni- or Co-based alloy. The method additionally may include placing the braze sintered preform in the through-hole and heating at least the braze sintered preform to cause the braze sintered preform to join to the repair portion of the base component and change a microstructure of the braze sintered preform to a brazed and diffused microstructure.

    BRAZE FOR CERAMIC AND CERAMIC MATRIX COMPOSITE COMPONENTS
    18.
    发明申请
    BRAZE FOR CERAMIC AND CERAMIC MATRIX COMPOSITE COMPONENTS 审中-公开
    陶瓷和陶瓷基体复合材料的制作

    公开(公告)号:US20160325368A1

    公开(公告)日:2016-11-10

    申请号:US15144367

    申请日:2016-05-02

    Abstract: The disclosure describes techniques for joining a first part including a ceramic or a CMC and a second part including a ceramic or a CMC using brazing. A technique may include positioning a filler material in a joint region between the first and second parts and a metal or alloy on a bulk surface of the filler material. The metal or alloy may be locally heated to melt the metal or alloy, which may infiltrate the filler material. A constituent of the molten metal or alloy may react with a constituent of the filler material to join the first and second parts. Another technique may include depositing a powder that includes the filler material and the metal or alloy in the joint region. Substantially simultaneously with depositing the powder, the powder may be locally heated. A constituent of the molten metal or alloy may react with a constituent of the filler material to join the first and second parts.

    Abstract translation: 本公开描述了使用钎焊将包括陶瓷或CMC的第一部分和包括陶瓷或CMC的第二部分接合的技术。 技术可以包括将填充材料定位在第一和第二部分之间的接合区域中,以及在填料材料的整体表面上的金属或合金。 金属或合金可以局部加热以熔化可能渗透填料的金属或合金。 熔融金属或合金的成分可与填料的成分反应,从而使第一和第二部分接合。 另一种技术可以包括在接合区域中沉积包括填充材料和金属或合金的粉末。 基本上同时沉积粉末,粉末可以局部加热。 熔融金属或合金的成分可与填料的成分反应,从而使第一和第二部分接合。

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