Film forming method and film forming apparatus

    公开(公告)号:US12065732B2

    公开(公告)日:2024-08-20

    申请号:US17425581

    申请日:2020-01-27

    CPC classification number: C23C16/325 C23C16/4405 C23C16/4583

    Abstract: A film forming method of forming a silicon carbide film on a substrate to be processed includes: forming the silicon carbide film on the substrate to be processed by loading a holder that holds the substrate to be processed into a processing container of a film forming apparatus to place the holder on a stage, and supplying a raw material gas into the processing container; and removing a reaction product, which has been adhered to a part other than the substrate to be processed during the forming the silicon carbide film, by loading a plate-shaped member having at least a surface formed by pyrolytic carbon into the processing container to place the plate-shaped member on the stage, and supplying a fluorine-containing gas into the processing container.

    METHOD OF PROCESSING A CMC AIRFOIL
    6.
    发明公开

    公开(公告)号:US20240167152A1

    公开(公告)日:2024-05-23

    申请号:US18466924

    申请日:2023-09-14

    Abstract: A method for processing a CMC airfoil includes nesting an airfoil fiber preform in a cavity of a fixture that has first and second tool segments, closing the fixture by rotating a first tool segment about a hinge, the closing causing the tool segments to clamp on a tail portion of the fiber preform and thereby conform the tail portion to the fixture. While in the fixture, the fiber preform is then partially densified with an interface coating material to form a partially densified fiber preform. While still in the fixture, one or more cooling holes are drilled into the trailing edge of the partially densified fiber preform. After the drilling, the partially densified fiber preform is removed from the fixture and further densified with a ceramic matrix material to form a fully densified CMC airfoil.

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