Structure Transition and Electrocaloric Effect of Pb(Zr1-xTix)O3 at High Field

Wen Jiang Feng; Zhi Guo Zhang; Chuang Wu; Hao Chen

doi:10.4028/www.scientific.net/AMM.432.3

Paper Titles

Preface and Organizing Committees

Structure Transition and Electrocaloric Effect of Pb(Zr_1-xTi_x)O₃ at High Field
p.3

The Study of the Appropriate Reclamation Method for the Complete Reclamation of the Used Clay Sand
p.7

The Process Adaptability Study under the Conditions of Reclaimed Clay Sand Variable System
p.11

Structural and Optical Properties of Ti_1-xFe_x O₂ Nanoparticles
p.16

Preparation and Characteristics of the Micro/Nano Fibrils from the Wheat-Straw Treated by Enzyme
p.20

Controlling the Chemical Composition of the Interface Thermally Grown Oxides to Prolong the Lifespan of Thermal Barrier Coatings Based on Interfering Aluminum Diffusion Mechanism
p.25

A DSC Investigation of the Effects of Cold Deformation and Low Temperatures Aging on the Microstructural Stability of a Peak Aged (PA) Al 6061 Alloy
p.32

The Strain Distribution and Equilibrium Morphology for Dome-Shaped Ge/Si Semiconductor Quantum Dot
p.39

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 432Structure Transition and Electrocaloric Effect of...

Structure Transition and Electrocaloric Effect of Pb(Zr_1-xTi_x)O₃ at High Field

Abstract:

We investigated the structure transition and the electrocaloric effect in PbZr_1-xTi_xO₃ (PZT) with x=0.7, 0.8 and 0.9. The results show that 50 MV/m can make the structural transition be a continuous one. When x=0.7, 0.8 and 0.9 at the zero field, the first order structural transition occurs at T₀=685, 687, and 698 K, respectively. Upon a strong electric field, the first order structural transition comes to the second one, which leads to lower the change of specific heat. The structural transition temperature is shifted at high temperature with increasing electric field. The maximum electrocaloric effect is present occurs at about 200 K above the corresponding Curie temperature. With increasing composition of Ti, the electrocaloric effect is enlarged, together with increasing structure transition temperatures.