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所属单位：Shandong University

发表刊物：Journal of Alloys and Compounds

摘要：This paper reported the correlations between electrocaloric effect (ECE) and dielectric diffuseness of Ba(Ti1-xSnx)O-3 (abbreviated as BT-100xSn) ceramics. The BT-100xSn with pure perovskite structure has been synthesized by conventional solid-state reaction method. The temperature dependence of dielectric per-mittivity indicates that all the BT-100xSn ceramics are normal ferroelectric with diffused phase transition, and the dielectric diffuseness is strengthened as the Sn contents increase. The maximum ECE takes place in the vicinity of phase transition point, which is the characteristic of normal ferroelectrics. The BT-8Sn indicates the largest Delta T = 0.46 K and Delta T/Delta E = 0.30 x 10(-6) K m/V. The substitutions of Sn contents adjust the maximum ECE to different temperatures, and the good temperature-modulation of ECE is beneficial for the realization of ECE application. Considering the correlations between ECE and dielectric diffuseness, the experimental results demonstrate that the stronger dielectric diffuseness leads to the strengthened temperature stabilities of ECE but accompanied with decreased maximum ECE.

全部作者：En-Meng Liang

第一作者：Ye Zhao

论文类型：期刊论文

通讯作者：Xian Zhao,Chun-Ming Wang

卷号：910

页面范围：164826

字数：5000

是否译文：否

发表时间：2022-07-01

收录刊物：SCI