Abstract
ABSTRACTIn this study, in order to develop low-temperature sintering ceramics for piezoelectric energy harvesting devices, Pb(Mg1/2W1/2)0.03(Ni1/3Nb2/3)0.09(ZryTi1-y)O3 ceramics were synthesized using conventional mixed oxide method. Effect of Zr/Ti ratio on their piezoelectric and dielectric properties was investigated. XRD-diffraction patterns of all the samples showed perovskite phase, and a secondary phasses was observed. As Zr/Ti ratio was increased, the crystal structure of the ceramics gradually moved from tetragonal to rhombohedral phases, and the compositions near the morphotropic phase boundary(MPB) appeared when Zr/Ti ratio was 50/50. However, at the PMW-PNN-PZT (Zr/Ti = 50.5/49.5) composition ceramics sintered at 920°C, density, electromechanical coupling factor(kp), piezoelectric constant(d33), and dielectric constant, piezoelectric figure of merit (d33·g33) indicated the optimum values of 7.75 g/cm3, 0.62, 556pC/N, 2125, and 16.43(pm2/N), respectively, suitable for energy harvesting device application.
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
