Journal of Materials Science: Materials in Electronics

, Volume 24, Issue 9, pp 3309–3314 | Cite as

Enhancing energy storage density of (Ba, Sr)TiO3 ceramic particles by coating with Al2O3 and SiO2

  • Jinwen Wang
  • Chao Xu
  • Bo Shen
  • Jiwei ZhaiEmail author


The dielectric and energy storage properties of Ba0.4Sr0.6TiO3 particles coated by Al2O3 and SiO2 oxide were investigated. Results showed that the dielectric properties and energy storage density were improved apparently. The improvement of the energy storage density can be ascribed to two factors: one was that the breakdown strength was notably improved by the decrease of the porosity and defects; the other was the reduction of the grain size. Furthermore, the optimized composition showed the maximum energy storage density of 5.09 J/cm3, whereas the energy storage density of uncoated Ba0.4Sr0.6TiO3 was only 0.24 J/cm3.


Dielectric Constant Dielectric Property BaTiO3 Coated Sample Breakdown Strength 
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The authors would like to acknowledge the support from National Key Fundamental Research Program (973) (2009CB623302).


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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  1. 1.Functional Materials Research LaboratoryTongji UniversityShanghaiChina

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