Glass additive in barium titanate ceramics and its influence on electrical breakdown strength in relation with energy storage properties
Glass additive in barium titanate ceramics and its influence on electrical breakdown strength in relation with energy storage properties
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钛酸钡陶瓷中的玻璃添加剂及其对与储能性能相关的电击穿强度的影响
DOI：
10.1016/j.jeurceramsoc.2011.09.024
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发表时间：
2012-03
影响因子：
5.7
通讯作者：
Liang, Tongxiang
中科院分区：
文献类型：
--
作者：
Wang, Xiangrong;Zhang, Yong;Song, Xiaozhen;Yuan, Zongbao;Ma, Tao;Zhang, Qian;Deng, Changsheng;Liang, Tongxiang
采用液相烧结技术，采用玻璃添加剂改善钛酸钡陶瓷的显微结构和储能性能。显微组织观察表明，随着玻璃浓度的增加，平均晶粒尺寸明显减小。随着玻璃浓度的增加，介质常数减小，介质击穿强度增大。断裂强度随晶粒尺寸的减小而增大，这与力学破坏的规律一致。利用实测的阻抗值计算了体晶活化能和晶界活化能及其差值。对于添加玻璃的batio3陶瓷，介质击穿强度与体晶活化能和晶界活化能之差呈良好的反比关系。随着玻璃浓度的增加，陶瓷的储能密度逐渐增大。讨论了界面极化对降低储能性能的可能影响。
Glass additive was employed to improve the microstructures and energy storage properties of barium titanate ceramics using liquid phase sintering technology. Microstructural observation indicated that the average grain size reduced obviously with increasing glass concentration. Also, the dielectric constant decreased and the dielectric breakdown strength increased as glass concentration increased. The increase in the breakdown strength with decreasing grain size was consistent with the well-known relationship for the mechanical failure. The activation energies of bulk grain and grain boundary as well as their differences were calculated using measured impedance values. Good inverse dependence of the dielectric breakdown strength on the difference between activation energies of bulk grain and grain boundary was obtained for the glass-added BaTiO3ceramics. It was also found that the energy storage density of the ceramics increased gradually with increasing glass concentration. Possible effect of the interfacial polarization in degrading the energy storage property was discussed.
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影响因子：
4
作者：
C. Ang;Z. Yu
通讯作者：
C. Ang;Z. Yu
影响因子：
3.9
作者：
A. L. Young;G. Hilmas;S. Zhang;R. W. Schwartz
通讯作者：
A. L. Young;G. Hilmas;S. Zhang;R. W. Schwartz
DOI：
--
发表时间：
1951
期刊：
Journal of Applied Mechanics
影响因子：
--
作者：
W. Weibull
通讯作者：
W. Weibull
影响因子：
4.5
作者：
A. L. Young;G. Hilmas;S. Zhang;R. W. Schwartz
通讯作者：
A. L. Young;G. Hilmas;S. Zhang;R. W. Schwartz
影响因子：
3.9
作者：
M. Vollmann;R. Hagenbeck;R. Waser
通讯作者：
M. Vollmann;R. Hagenbeck;R. Waser