Title :
Ferroelectric and piezoelectric properties of Fe doped lead free BaTiO3-CaTiO3 electroceramics
Author :
Keswani, Bhavna C. ; Kambale, R.C. ; Kolekar, Y.D.
Author_Institution :
Dept. of Phys., Savitribai Phule Pune Univ., Pune, India
Abstract :
Ferroelectric and piezoelectric properties of lead-free BaTiO3 (BT), Ba0.92Ca0.08TiO3 (BCT8) and Fe doped (~ 1.25, 1.5 and 2 wt. %) BCT8 electroceramics prepared by solid state reaction have been studied. X-ray diffraction results confirm the formation of tetragonal crystal lattice symmetry. All the samples exhibit typical polarization-electric field (P-E) hysteresis loop as well as strain-electric field (S-E) butterfly loop endorses the ferroelectric and piezoelectric nature, respectively. The ferroelectric (polarization) and piezoelectric (strain) properties of BCT 8 were observed to be suppressed with Fe doping. The 2 wt. % Fe doped BCT8 electroceramics shows the typical magnetization-magnetic field (M-H) hysteresis loop at room temperature evidences the presence of multiferroic nature.
Keywords :
X-ray diffraction; barium compounds; calcium compounds; crystal symmetry; dielectric hysteresis; dielectric polarisation; ferroelectric ceramics; ferroelectricity; magnetic hysteresis; materials preparation; multiferroics; piezoceramics; piezoelectricity; Ba0.92Ca0.08TiO3; Ba0.92Ca0.08TiO3:Fe; BaTiO3; Fe doped lead free electroceramics; X-ray diffraction; XRD; ferroelectric properties; magnetization-magnetic field hysteresis loop; multiferroic nature; piezoelectric properties; polarization-electric field hysteresis loop; solid state reaction; strain-electric field butterfly loop; tetragonal crystal lattice symmetry formation; Doping; Ions; Iron; Lead; Magnetic hysteresis; Saturation magnetization; Strain; Electroceramics; ferroelectric; multiferroic; piezoelectric;
Conference_Titel :
Physics and Technology of Sensors (ISPTS), 2015 2nd International Symposium on
Conference_Location :
Pune
DOI :
10.1109/ISPTS.2015.7220092
