Abstract
Single perovskite phase of PMN-PT (68:32) composition was prepared using highly reactive fumed titania as starting material. The calcination temperature of 700°C was found to be the optimum temperature for the formation of single perovskite phase in the present system. Experimental density of the material was found to be 94% of the theoretical density. Room temperature dielectric constant (ϵ ′) and dielectric loss (tanδ) of the material at 1 kHz were found to be 2277 and 0.065 respectively. From polarization versus electric field (P-E) hysteresis loop, remanant polarization (P r ) and coercive field (E c ) were found to be ∼ 22 μ C/cm 2 and ∼ 3.90 kV/cm respectively. Strain versus bipolar electric field (S-E) behaviour showed the development of a giant strain of ∼ 1%, whereas less hysteresis behaviour in S-E plot of poled samples indicates the suitability of the material for actuator applications.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
