CMC CROSS-OVER TUBE
    161.
    发明申请
    CMC CROSS-OVER TUBE 审中-公开

    公开(公告)号:US20200182472A1

    公开(公告)日:2020-06-11

    申请号:US16786475

    申请日:2020-02-10

    Inventor: Sujit Nanda

    Abstract: A fluid conduit may be provided comprising a ceramic matrix composite (CMC) cross-over tube and a flange. The CMC cross-over tube may comprise a first end configured to extend into a first combustor liner of a gas turbine engine, and a second end configured to extend into a second combustor liner of a gas turbine engine. The interior of the CMC cross-over tube may define a passageway. The flange may extend outwardly from an outer surface of the CMC cross-over tube. The flange may be configured to engage at least one of the first combustor liner and the second combustor liner.

    METHOD OF CONTROLLABLY COATING A FIBER PREFORM DURING CERAMIC MATRIX COMPOSITE (CMC) FABRICATION

    公开(公告)号:US20190367417A1

    公开(公告)日:2019-12-05

    申请号:US15995537

    申请日:2018-06-01

    Inventor: Stephen Harris

    Abstract: A method of controllably coating a fiber preform has been developed. The method includes infiltrating a fiber preform with a first solvent to form a solvent-filled preform. After the infiltration, a slurry is applied to one or more outer surfaces of the solvent-filled preform to form a slurry coating thereon. The slurry coating comprises particulate solids dispersed in a second solvent having a vapor pressure higher than that of the first solvent. The slurry coating and the solvent-filled preform are dried. During drying, the second solvent evaporates from the slurry coating before the first solvent evaporates from the solvent-filled preform. The slurry coating dries to form a porous surface coating comprising the particulate solids on the one or more outer surfaces of the solvent-filled preform. The drying of the solvent-filled preform continues after formation of the porous surface coating to remove the first solvent.

    APPARATUS AND METHOD FOR COATING SPECIMENS
    167.
    发明申请

    公开(公告)号:US20190360097A1

    公开(公告)日:2019-11-28

    申请号:US15989697

    申请日:2018-05-25

    Inventor: Stephen Harris

    Abstract: An apparatus for coating specimens includes a reaction chamber and a plurality of reaction modules in the reaction chamber for containing specimens to be coated, where each reaction module includes a module inlet and a module outlet. A plurality of conduits are configured to be in fluid communication with at least one gas source external to the reaction chamber, and each of the conduits terminates in one of the reaction modules for delivery of gaseous reagents to the specimens to be coated. The module outlets are in fluid communication with the reaction chamber for expulsion of gaseous reaction products from the reaction modules.

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