Abstract：In this paper, the thermal diffusivity of graphite, stainless steel, copper and corundum was tested in the range of (400～800) ℃ by using the vertical thermal diffusivity measurement device based on the laser flash method. The thermal diffusivity stability and repeatability of the material samples were evaluated. The thermal diffusivity test results were studied and analyzed. Suggestions on the selection of thermal diffusivity standard samples were put forward.
2021, Vol. 31 