Energy storage properties in Ba0.4Sr0.6TiO3 ceramics with addition of semi-conductive BaO–B2O3–SiO2–Na2CO3–K2CO3 glass
Energy storage properties in Ba0.4Sr0.6TiO3 ceramics with addition of semi-conductive BaO–B2O3–SiO2–Na2CO3–K2CO3 glass
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DOI：
10.1016/j.jallcom.2014.08.038
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发表时间：
2014-12
影响因子：
6.2
通讯作者：
Tong Wang;Li Jin;Longlong Shu;Q. Hu;Xiaoyong Wei
中科院分区：
文献类型：
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作者：
Tong Wang;Li Jin;Longlong Shu;Q. Hu;Xiaoyong Wei
将半导体 BaO–B2O3–SiO2–Na2CO3–K2CO3 玻璃添加剂添加到 Ba0.4Sr0.6TiO3(BST) 陶瓷中，研究其对微观结构、介电性能、击穿强度 (BDS) 和储能密度的影响。烧结温度降低约 150 °C，且相对密度较高（~98%）。所有 BST 玻璃陶瓷的 X 射线衍射图表明钙钛矿结构，没有任何可检测到的第二相。 BST微晶玻璃的室温介电常数随着Na2CO3含量的增加而降低。 BST玻璃陶瓷的BDS和储能密度随着Na2CO3含量的增加而增加，并在Na+和K+含量最高时达到最大值280kV/cm和0.72J/cm3。这些结果表明 BST 玻璃陶瓷可以在储能电容器器件中找到潜在的应用。
Semi-conductive BaO–B2O3–SiO2–Na2CO3–K2CO3glass additives were added to Ba0.4Sr0.6TiO3(BST) ceramics to investigate its influences on the microstructure, dielectric properties, breakdown strength (BDS), and energy storage density. The sintering temperatures were lowered about 150 °C with a high relative density (∼98%). X-ray diffraction patterns of all BST glass ceramics suggest perovskite structures without any detectable secondary phase. Room temperature dielectric constant of BST glass ceramics decreases with increasing Na2CO3content. BDS and energy storage density of BST glass ceramics increase with increasing Na2CO3content, and reach their maxima of 280 kV/cm and 0.72 J/cm3at the highest Na+and K+content. These results suggest that the BST glass ceramics could find their potential applications in energy storage capacitor devices.