Mn-Doped Ba<sub>0.45sub>Sr<sub>0.55sub>TiO<sub>3sub> Ceramic Systems: Dielectric and Impedance Spectroscopic Characterization

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• 作者：Asad Mahmood ; Abdul Naeem ; Asad Ullah and Yaseen Iqbal
• 刊名：International Journal of Applied Ceramic Technology
• 出版年：2016
• 出版时间：November/December 2016
• 年：2016
• 卷：13
• 期：6
• 页码：1084-1089
• 全文大小：979K
• ISSN：1744-7402

文摘

Mn-doped Ba<sub>0.45sub>Sr<sub>0.55sub>TiO<sub>3sub> (x = 0.00, 0.01, 0.02, 0.03, 0.04, 0.05) ceramics were processed by solid-state route at 1300°C for 6 h in air. Impedance spectroscopic studies showed that the total resistance (R<sub>Tsub>) decreased with the increase in temperature. Samples with x = 0.00, 0.03, and 0.05 exhibited grain boundary contribution to the conduction mechanism. Samples with x = 0.01, 0.02, 0.04 compositions showed both grain (bulk) and grain boundary contributions. Mn substitution proved to be an effective way to optimize the dielectric properties of BST ceramics.