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Electrocaloric effect in lead-free relaxor (1-x)(Sr0.7Bi0.2)TiO3+x(Na0.5Bi0.5)TiO3 material system

Journal Article


Abstract


  • The relationship between electrocaloric effect (ECE) and electrostrictive strain over a broad electric field was studied in (1-x)(Sr0.7Bi0.2)TiO3+x(Na0.5Bi0.5)TiO3 relaxor based lead-free ceramics, where the electric field induced strain can reach the level of 0.28% at 12 MV/m. The experimental data revealed that the composition with highest strain response also generated the largest ECE near room temperature, e.g., ¿S=3.6 J kg¿1 K¿1 and an adiabatic temperature change ¿T=2.4 K at 13 MV/m. This research provides an effective approach for designing new ECE materials.

UOW Authors


  •   Li, Jinglei (external author)
  •   Zhao, Xiaobo (external author)
  •   Xu, Zhuo (external author)
  •   Zhang, Tian (external author)
  •   Qian, Xiaoshi (external author)
  •   Hou, Ying (external author)
  •   Yang, Lu (external author)
  •   Zhang, Shujun

Publication Date


  • 2017

Citation


  • Li, J., Zhao, X., Xu, Z., Zhang, T., Qian, X., Hou, Y., Yang, L. & Zhang, S. (2017). Electrocaloric effect in lead-free relaxor (1-x)(Sr0.7Bi0.2)TiO3+x(Na0.5Bi0.5)TiO3 material system. Materials Letters, 187 68-71.

Scopus Eid


  • 2-s2.0-84993958663

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2375

Number Of Pages


  • 3

Start Page


  • 68

End Page


  • 71

Volume


  • 187

Place Of Publication


  • Netherlands

Abstract


  • The relationship between electrocaloric effect (ECE) and electrostrictive strain over a broad electric field was studied in (1-x)(Sr0.7Bi0.2)TiO3+x(Na0.5Bi0.5)TiO3 relaxor based lead-free ceramics, where the electric field induced strain can reach the level of 0.28% at 12 MV/m. The experimental data revealed that the composition with highest strain response also generated the largest ECE near room temperature, e.g., ¿S=3.6 J kg¿1 K¿1 and an adiabatic temperature change ¿T=2.4 K at 13 MV/m. This research provides an effective approach for designing new ECE materials.

UOW Authors


  •   Li, Jinglei (external author)
  •   Zhao, Xiaobo (external author)
  •   Xu, Zhuo (external author)
  •   Zhang, Tian (external author)
  •   Qian, Xiaoshi (external author)
  •   Hou, Ying (external author)
  •   Yang, Lu (external author)
  •   Zhang, Shujun

Publication Date


  • 2017

Citation


  • Li, J., Zhao, X., Xu, Z., Zhang, T., Qian, X., Hou, Y., Yang, L. & Zhang, S. (2017). Electrocaloric effect in lead-free relaxor (1-x)(Sr0.7Bi0.2)TiO3+x(Na0.5Bi0.5)TiO3 material system. Materials Letters, 187 68-71.

Scopus Eid


  • 2-s2.0-84993958663

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2375

Number Of Pages


  • 3

Start Page


  • 68

End Page


  • 71

Volume


  • 187

Place Of Publication


  • Netherlands