Effect of Sr Substitution on Structure and Thermal Diffusivity of Ba1-xSrxTiO3 Ceramic
Noor Jawad Ridha, W. Mahmood Mat Yunus, S.A. Halim, Z.A. Talib, Firas K. Mohamad Al-Asfoor and Walter C. Primus
DOI : 10.3844/ajeassp.2009.661.664
American Journal of Engineering and Applied Sciences
Volume 2, Issue 4
Problem statement: The aim of this research was to study the effect of Sr substitution on structure and thermal diffusivity of Bal-xSrxTiO3 ceramic at room temperature. Approach: Structural and thermal diffusivity of Ba1-xSrxTiO3 were studied by performing X-ray diffraction and photoflash measurements. The effects of Sr substitution on the structure and on the thermal diffusivity of Ba1-xSrxTiO3 (0≤x≤1) were investigated. All samples were prepared by standard solid state reaction technique. Results: The results showed that by substituting of Ba2+ ion with the Sr2+ the crystallite size decreased. The effect made the thermal diffusivity of Ba1-xSrxTiO3 decreased from 11.30x10-3 cm2 sec-1 (for BaTiO3) to 6.467x10-3 cm2 sec-1 (for SrTiO3) as x varied from 0-1. Conclusion: This study showed a significant effect of structure on thermo-physical property of materials.
© 2009 Noor Jawad Ridha, W. Mahmood Mat Yunus, S.A. Halim, Z.A. Talib, Firas K. Mohamad Al-Asfoor and Walter C. Primus. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.