Thermal barrier coating (TBC) is a technology for preventing the rise in surface temperature of the metal substrate by coating a ceramic with low thermal conductivity for the hot section components such as blades, nozzles and combustion chambers. In this paper, for some types of thick TBC specimen which had zirconia based ceramic top coat of 600 micrometer in order to improve the thermal insulation performance, thermal cycle property and heat flux are examined by using thermal simulating facility by gas burner heating. The paper also discusses fracture mechanism of the thick TBC. Paper includes a German-language abstract.

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