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High temperature capacitors using a BiScO3-BaTiO3-(K1/2Bi1/2)TiO3 ternary system

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Abstract

BiScO3-BaTiO3 with (K1/2Bi1/2)TiO3 [BSBT-KBTx] in the perovskite solid solution system were prepared by conventional ceramic processing for potential high temperature capacitors. The effect of KBT on the dielectric properties of BSBT was investigated as a function of temperature and frequency. The BSBT-KBT20 exhibited high dielectric permittivity and low dielectric loss over the temperature range from 100°C to 300°C with flat coefficients of temperature (TCɛs). In addition, BSBT-KBTx were observed to possess dielectric relaxation behavior at temperatures (> RT) as observed in lead-based relaxors. Furthermore, the E-field polarization behavior was investigated showing high energy density of 1.28 J/cm3 at 100 kV/cm for the BSBT-KBT20.

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Authors and Affiliations

  1. Nano. Functional Materials Group, Korea Institute of Materials Science, Changwon,-si, Gyeongnam, 641-831, Korea

    Jong Bong Lim

  2. Material Research Institute, Pennsylvania State University, University Park, State College, PA, 16901, USA

    Shujun Zhang & Thomas R. Shrout

Authors
  1. Jong Bong Lim
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  2. Shujun Zhang
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  3. Thomas R. Shrout
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Correspondence to Jong Bong Lim.

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Lim, J.B., Zhang, S. & Shrout, T.R. High temperature capacitors using a BiScO3-BaTiO3-(K1/2Bi1/2)TiO3 ternary system. Electron. Mater. Lett. 7, 71–75 (2011). https://doi.org/10.1007/s13391-011-0311-8

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  • DOI: https://doi.org/10.1007/s13391-011-0311-8

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