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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >OPTIMIZATION OF ENERGY STORAGE DENSITY IN CERAMIC CAPACITORS
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OPTIMIZATION OF ENERGY STORAGE DENSITY IN CERAMIC CAPACITORS

机译:陶瓷电容器的储能密度优化

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A theoretical treatment, based on the Devonshire theory of ferroelectrics, is presented to describe the storage of electrostatic energy in ferroelectric and paraelectric materials at very high field strengths. In all cases, optimal energy density is achieved by using compositions with Curie temperatures well below the operating temperature. The theory is applied to barium-strontium titanate ceramics and optimal compositions are deduced for energy storage at given working fields. The theory is supported by experimental data showing energy densities up to 8 J cm(-3) at 100 kV mm(-1). [References: 12]
机译:提出了一种基于德文郡铁电理论的理论方法,以描述在非常高的场强下铁电和顺电材料中静电能的存储。在所有情况下,通过使用居里温度远低于工作温度的组合物可获得最佳的能量密度。该理论适用于钛酸钡锶锶陶瓷,并推导了在给定工作范围内用于能量存储的最佳组成。该理论得到实验数据的支持,实验数据显示在100 kV mm(-1)时能量密度高达8 J cm(-3)。 [参考:12]

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