High temperature seals and high temperature sealing systems

摘要

A high temperature seal that includes an interior region (14) comprising a material that swells when exposed to a high temperature environment and at least one projection that is able to be inserted into a slot (32), and a coating (22) that substantially prevents swelling to coated areas of the interior region (14). The coating (22) is disposed upon an exterior surface of the interior region (14) such that a distal end of at least one projection remains at least partially uncoated and the remainder of the interior region (14) is substantially covered by the coating (22). The interior region (14) may include a ceramic matrix composite.