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首页> 外文期刊>CERAMICS INTERNATIONAL >Dielectric relaxation behavior and energy storage properties of Sn modified SrTiO3 based ceramics
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Dielectric relaxation behavior and energy storage properties of Sn modified SrTiO3 based ceramics

机译：Sn修饰的SrTiO3基陶瓷的介电弛豫行为和储能性能

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摘要

SrSnxTi(1-x)O3 (x=0, 0.01, 0.03, 0.05, 0.07) dielectric ceramics were fabricated by the solid state reaction method. Significant refinement of grain size and improved resistivity were observed with the addition of Sn, accounting for effectively enhanced dielectric breakdown strength, beneficial for the energy storage applications. Impedance analysis was employed to calculate the conductivities of grain and grain boundary and resistance ratios (R-gb/R-g) of grain boundary to grain. The grain boundary effect was believed to dominate the modified macroscopic performance, which was confirmed by the complex impedance analysis. The optimal properties were achieved for samples with x=0.05, exhibiting a charge energy density of 1.1 J/cm(3) and an energy efficiency of 87%. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
机译：通过固态反应法制备了SrSnxTi（1-x）O3（x = 0，0.01，0.03，0.05，0.07）电介质陶瓷。通过添加锡，可以观察到晶粒尺寸的显着细化和电阻率的提高，有效地提高了介电击穿强度，有利于储能应用。阻抗分析用于计算晶粒和晶界的电导率以及晶界与晶粒的电阻比（R-gb / R-g）。据信晶界效应主导了改进的宏观性能，这通过复阻抗分析得到了证实。对于x = 0.05的样品，可以实现最佳性能，其电荷能量密度为1.1 J / cm（3），能量效率为87％。 （C）2016 Elsevier Ltd和Techna Group S.r.l.版权所有。

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