Electrocaloric effect of inorganic low temperature sintering (Pb0.88La0.08)(Zr0.65Ti0.35)O3 ceramics

2015 Global Conference on Polymer and Composite Materials

材料科学;化学

Ra, Cheol-Min^1 ; Yoo, Ju-Hyun^1 ; Chol, Seung-Hun^1 ; Lee, Jie-Young^2

Semyung University, Jecheon

390-711, Korea, Republic of^1

Department of Computer Science, Semyung University, Jecheon

390-711, Korea, Republic of^2

关键词: Composition ceramics;    Electro-caloric effects;    Electrocaloric;    Low-temperature sintering;    P-E hysteresis loops;    Solid state method;    Temperature changes;    Wide temperature ranges;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/87/1/012084/pdf
DOI  :  10.1088/1757-899X/87/1/012084

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In this study, in order to develop the composition ceramics with the excellent electrocaloric properties, (Pb0.88La0.08)(Zr0.65Ti0.35)O3ceramics were fabricated by the conventional solid-state method. Electrocaloric effects of inorganic (Pb0.88La0.08)(Zr0.65Ti0.35)O3ferroelectric ceramics were investigated and discussed using the characteristics of P-E hysteresis loops at wide temperature range from room temperature to 220 °C. The temperature change ΔT due to the electrocaloric effect was calculated by Maxwell's relations. The temperature change ΔT of ceramics sintered at 950°C reached the maximum of ∼0.19 at 190 °C under applied electric field of 30 kV/cm.