Thennal Diffusivity Measurement of SnO2-CuO Ceramic at Room Temperature

Thermal diffusivity is a measure of rapidity of heat propagation through a material. the property is important in the understanding of gas sensor performance. photoflash technique was used to determine thermal diffusivity of sno2-based materials with varying amount of cuo ranging from 10 to 50 mol%, at room temperature. the samples were made disc-shaped, 10 mm in diameter with thickness ranging from 2.4 to 2.8 mm. we found that the thermal diffusivity values of sno2-cuo samples ranging from 6.21 to 7.51x10^-2 cm^2s^-1 were better than the reported thermal diffusivity value of pure sno2 sample (1.45xl0^-2 cms^-1}. the thermal diffusivity behaviour was supported by results from xrd and sem.