(K0.5Bi0.5)(Mg1/3Nb2/3)O3-modified Sr0.7Bi0.2TiO3 lead-free ceramics for energy storage applications

Murad Ali Khan, Abdul Manan, Maqbool Ur Rehman, Sami Ullah Khan, Shah Faisal, Arshad Hussain Wazir, Faisal Alresheedi, Michael T. Lanagan

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In the present study, Sr0.7Bi0.2TiO3 is mixed with [(K0.5Bi0.5)(Mg1/3Nb2/3)O3] to form a solid solution of [(1 − x)SBT–x(KB)(MNb), x = 0.02, 0.04, 0.06, 0.1]. From the XRD results, it is indicated that KB is the main substituent for SBT ceramic at the A-site. The breakdown strength (BDS) of ceramic gradually increases with an increase in doping content and achieves a high value of 280 kV/cm for x = 0.06. In addition, the 0.94SBT–0.06(KB)(MNb) ceramic shows excellent temperature stability (−55 to 140°C), a high recoverable energy density (Wd)—2.6 J/cm3, and an efficiency (η)—88% at 280 kV/cm. Therefore, 0.94SBT–0.06(KB)(MNb) ceramic is one of the possible materials for energy storage capacitor applications.

Original languageEnglish (US)
Pages (from-to)947-956
Number of pages10
JournalInternational Journal of Applied Ceramic Technology
Issue number2
StatePublished - Mar 1 2024

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Condensed Matter Physics
  • Marketing
  • Materials Chemistry

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