Dielectric diffusive behavior of (Lax(Na0.5Bi0.5)1-1.5x)0.97Ba0.03TiO3 lead-free ceramics

被引：5
作者：
Yu, Zi-de [1 ]
Chen, Xiao-ming [1 ]
机构：
[1] Shaanxi Normal Univ, Sch Phys & Informat Technol, Xian 710119, Peoples R China
来源：
PHYSICA B-CONDENSED MATTER | 2016年 / 503卷
基金：
中国国家自然科学基金;
关键词：
Lead-free ceramics; Bismuth sodium titanate; Dielectric properties; Lorentz-type quadratic relationship; Gaussian-type quadratic relationship; FREE PIEZOELECTRIC CERAMICS; PHASE-TRANSITION; RELAXOR FERROELECTRICS; ELECTRICAL-PROPERTIES; ENERGY-STORAGE; MICROSTRUCTURE;
D O I：
10.1016/j.physb.2016.09.012
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We investigate in the present work the additional data to the previous reported paper (Zhao, et al.) that sufficiently enrich to understand the dielectric diffusive behavior of the (La-x(Na0.5Bi0.5)(1-1.5x))(0.97)Ba0.03TiO3 lead-free ceramics. The dielectric diffusive behavior of the ceramics was investigated using Lorentz-type quadratic relationship and Gaussian-type quadratic relationship. By calculating mean-square-root error and dielectric constant variance, it was found that Lorenz-type quadratic relationship was better to describe the characterization of dielectric diffusive behavior than Gaussian-type quadratic relationship. The results confirm that the increase in La3+ content causes an increase in the degree of diffuseness of dielectric peak. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：7 / 10
页数：4
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