| Influence of Lattice Strain on Phase Transition and
Piezoelectric Properties of Lead-Free (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3
Ceramics |
Elugu Chandrakala,a Paul Praveen John,a, b Parthiban Palani,a Murugesan Ganesanb and
Dibakar Dasa, *
Pages : 144-151
DOI : 10.1080/0371750X.2020.1783366 |
| Abstract |
| Substitution in A or/and B sites of the perovskite lattice, or strain engineering is
known to influence the properties of piezoelectric ceramics. Cerium (Ce) has been
identified as a substituent to investigate the properties of lead-free
(Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 (BCZT) ceramics. Structural, ferroelectric, piezoelectric and
dielectric properties of Ce substituted BCZT ceramics were investigated
systematically and were correlated with the strain induced structural phase
transition. Ce substituted for Ti in BCZT ceramics showed coexistence and larger
phase fractions of tetragonal and rhombohedral phases and exhibited enhanced
piezoelectric and dielectric responses, d33 ~703 pC/N, g33 ~16 mV.m/N, kp ~61% and
Tc~ 123oC.
[Keywords: Ferroelectric, Piezoelectric, Dielectric, Strain] |
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