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TWI Industrial Member Report 1164-2023 [pdf / 1008 KB]
By Ben Robinson
Many industrial applications require components in service to survive rapid thermal shock events or many cycles between high and low temperatures. Often such components comprise a substrate and coating, where these cyclic temperatures can lead to coating spallation or failure. In developing and qualifying new coatings or applications, there is a need for test facilities that can replicate the thermal cycling environments. However, standard test equipment cannot readily address all of the requirements and there is a need for a facility that can handle a wide temperature range and test a large number of samples for prolonged durations.
· Following a technical review, four design concepts were created and assessed:
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