BLADE OUTER AIR SEAL HAVING PARTIAL COATING

摘要

A blade outer air seal member (32) includes a distinct body (40) that has two circumferential sides (42), a leading edge (44a) and a trailing edge (44b), and a gas path side (46a) and a radially outer side (46b) opposite the gas path side (46a). A ceramic coating (48) is initially disposed on a portion of the gas path side. The ceramic coating (48) includes a forward coating portion and an aft coating portion. The gas path side (46a) has a bare area (52) axially separating the forward coating portion and the aft coating portion. The bare area (52) excludes any of the ceramic coating (48). One or more cooling passages (60) have an outlet (62) that opens at the bare area (52). The cooling passage (60) extends in the body (40) in an axial direction under the ceramic coating (48).