Thermal properties of the plasma-sprayed MgTiO3–CaTiO3 and CaTiO3

The thermal diffusivity and thermal conductivity of plasma-sprayed materials MgTiO3–CaTiO3 and CaTiO3 were investigated over the range of 20–500 °C using the flash method. The thermal diffusivity of both materials decreases with increasing temperature. The thermal conductivity of both materials is nearly the same; with increasing temperature it first decreases and then it increases. The thermal diffusivity was measured at room temperature after annealing up to 800 °C. This value increased after annealing above 600 °C.