Relaxor-ferroelectric BaLnZT (Ln=La, Nd, Sm, Eu, and Sc) ceramics for actuator and energy storage application

Sarit K. Ghosh, Kaushik Mallick, B. Tiwari, E. Sinha, S. K. Rout

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


Lead free ceramics Ba1-xLn2x/3Zr0.3Ti0.7O3 (Ln=La, Nd, Sm, Eu and Sc), x=0.02-0.10 are investigated for electrostrictive effect and energy storage properties in the proximity of relaxor-paraelectric phase boundary. Relaxor phase evidence from slim hysteresis loop and low remnant polarization are the key parameters responsible for improve the electrostrictive effect and energy storage properties simultaneously. With increase in rare earth content negative strain disappeared and almost hysteresis free strain is achieved. Strain-hysteresis profile in term of S-E, S-E 2 and S-P 2 is used to analyze the electrostrictive behavior of these ceramics. An average strain (S%) ∼ 0.03%, is accomplished at initial concentrations of x=0.02-0.04 and electrostrictive coefficients (Q 11, and M 11) as well as the energy storage density is improved by a factor of 1.2 and 2.6 respectively when compare with pure (x=0.0) ceramic. Above x ≥ 0.06, all compositions show a stable behavior which suggested the possibilities of these relaxor ceramics towards high precision actuators and energy storage application.

Original languageEnglish
Article number015509
JournalMaterials Research Express
Issue number1
Publication statusPublished - Jan 2018


  • ferroelectric materials
  • piezoelectricity
  • relaxor ceramics

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Metals and Alloys


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