The conductivity of a thermal-barrier coating composed of atmospheric plasma sprayed 8 mass percent yttria partially stabilized zirconia has been measured. This coating was sprayed on a substrate of 410 stainless steel. An absolute, steady-state measurement method was used to measure thermal conductivity from 400 to 800 K. The thermal conductivity of the coating is 0.62 W/(m x K). This measurement has shown to be temperature independent.
Journal of Thermal Spray Technology,
Vol. 7, no. 1 (Mar 1998), pp. 43-46