Rolls-royce Corporation

Johnny D Grubbs

Quinlan Yee Shuck

David C Fairbourn

Brandon David Ribic

Sunny Chang

Pavlo Earle

Brandon David Ricbi

A method for removing a coating including a rare earth silicate from a substrate including a ceramic or ceramic matrix composite may include contacting a coating comprising a rare earth silicate with a liquid comprising an active species. The active species may include at least one of a mineral acid or a base. The method also may include working the coating to cause removal of at least a portion of the coating.

Removing coatings from ceramic matrix composite substrates

A material deposition head may include a body that defines first and second ends, an exterior surface, an interior surface, and one or more material delivery channels, where the exterior surface includes fluting. In some examples, a system may include a fluted material deposition head, a fluidized powder source, and an energy source.

Fluted additive manufacturing deposition head design

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Clayton, IN, United States of America

Johnny D Grubbs