Thermal diffusivity measurement of SnO2-CuO ceramic at room temperature

• Main Authors: Mas’ut, Aiza Masyati, Abdul Wahab, Zaidan, Mat Yunus, Wan Mahmood, Edros, Norfarezah Hanim
• Format: Article
• Language: English
• Published: Universiti Putra Malaysia Press 2008
• Online Access: http://psasir.upm.edu.my/id/eprint/40529/1/59.%20Thermal%20Diffusivity%20Measurement%20of%20SnO2-CuO.pdf; http://psasir.upm.edu.my/id/eprint/40529/; http://www.pertanika.upm.edu.my/Pertanika%20PAPERS/JST%20Vol.%2016%20%282%29%20Jul.%202008/21%20Pages%20265-273.pdf

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 7.51×10-2 cm2z-1 were better than the reported thermal diffusivity value of pure SnO2 sample (1.45×10-2 cm2Z-1). The thermal diffusivity behaviour was supported by results from XRD and SEM.