Effect of Sr addition on piezoelectric properties and the transition temperature of BaTiO₃

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• 作者：A. Elbasset ; S. Sayouri ; F. Abdi ; T. Lamcharfi ; L. Mrharrab
• 关键词：Cole–Cole plot (ε'' vs ε') ; the transition temperature (Tc) ; planar coupling coefficient kp ; piezoelectric constant d33
• 刊名：Glass Physics and Chemistry
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：43
• 期：1
• 页码：91-97
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Ceramics, Glass, Composites, Natural Materials; Characterization and Evaluation of Materials; Materials Science, general; Physical Chemistry;
• 出版者：Pleiades Publishing
• ISSN：1608-313X
• 卷排序：43

文摘

Single phased Sr substituted BaTiO₃ ceramics were synthesized by a sol-gel route and were found to crystallise in tetragonal symmetry with P_4mm space group using rietveld refinement. With increase in Sr content the tetragonality was reduced to pseudocubic and the Curie temperature (T_c) decreased with a rate of 3.33 K/mol %. This transition temperature has been determined by studying the thermal evolution of Cole- Cole diagrams (ε'' vs ε'). Effects of Sr content (x) and sintering time (4 and 8 h) on density, crystalline structure and piezoelectric properties were also investigated.