Thermal mechanical fatigue test rig

Details Thermal mechanical fatigue test rig Thermal mechanical fatigue test rig

2011-06-14

2011-06-14

Kirkland, III, Freddie (Department: 2855)

Measuring and testing

Turbine engine

Reexamination Certificate

active

07958777

ABSTRACT:
A thermal mechanical fatigue test rig for testing a coating, such as a thermal barrier coating, under high temperature and pressure to simulate the actual operating environment of the coating. The test rig includes a combustor to produce a hot gas flow, a hollow test specimen on which the coating is placed, and a sapphire vessel that encloses the hollow test specimen to form a hot gas flow path over the coating. The sapphire vessel is clear so that the coating can be observed by a camera during the testing. An exhaust plenum is formed around the sapphire vessel to collect the exhaust form the hot gas flow in which additional cooling air and water for quenching can be injected to reduce the temperature of the hot gas flow prior to discharge from the test rig.

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