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Thermal Diffusivity Measurement of La Doped SrSn0 3(Sr1_xLaxSn03 ) Ceramics by Photoflash Method

Liew, Josephine Ying Chyi and Mat Yunus, W. Mahmood and Ahmad Taha, Iftetan and Shaari, Abdul Halim (2005) Thermal Diffusivity Measurement of La Doped SrSn0 3(Sr1_xLaxSn03 ) Ceramics by Photoflash Method. Pertanika Journal of Science & Technology, 13 (2). pp. 163-172. ISSN 0128-7680

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Abstract

Thermal diffusivity, a of a medium is the thermophysicaJ property which determines the speed of heat propagation by conduction during changes of temperature with time. The measurement of thermal diffusivity can be carried out at room temperature by photoflash method, which employs a high intensity camera flash as the excitation source. In this paper, Sr1 _ xLaxSn0 3 ceramics doped with different compositions of La (x = 0.1, 0.4, 0.6, 0.8, 1.0) was investigated for their thermal diffusivity. The thermal diffusivity values varied from 0.44 x 10-2 - 1.15 X 10-2 cm2/s corresponding to x = 0.1 to x = 1.0. The morphology and structure of Sr1 _xLaxSn03 ceramics were analysed from SEM and XRD measurements to support the thermal diffusivity behaviour.

Item Type:Article
Keyword:Ceramic, doping effect, thermal diffusivity, XRD, SEM
Faculty or Institute:Faculty of Environmental Studies
Publisher:Universiti Putra Malaysia Press
ID Code:3856
Deposited By: Nur Izyan Mohd Zaki
Deposited On:02 Dec 2009 10:30
Last Modified:27 May 2013 15:11

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