(Ba1-xBix)(Ti1-xNi0.5xSn0.5x)O3 Solid Solution: Phase Evolution, Microstructure, Dielectric Properties, and Impedance Analysis

被引：15

作者：

Chen, Xiuli ^{[1
]}

Li, Xiaoxia ^{[1
]}

Yan, Xiao ^{[1
]}

Liu, Gaofeng ^{[1
]}

Zhou, Huanfu ^{[1
]}

机构：

[1] Guilin Univ Technol, Sch Mat Sci & Engn,Guangxi Minist Prov Jointly Co, Collaborat Innovat Ctr Explorat Hidden Nonferrous, Guangxi Key Lab Univ Clean Met & Comprehens Utili, Guilin 541004, Peoples R China

来源：

JOURNAL OF ELECTRONIC MATERIALS | 2018年 / 47卷 / 05期

关键词：

Dielectric properties; phase evolution; impedance; thermal stability; LEAD-FREE PIEZOCERAMICS; ELECTRICAL-PROPERTIES; TEMPERATURE-DEPENDENCE; CERAMICS; BATIO3; RAMAN; RELAXATION; STABILITY; BEHAVIOR; STRAIN;

D O I：

10.1007/s11664-018-6093-0

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

(Ba1-xBix)(Ti1-xNi0.5xSn0.5x)O-3 (BBTNS, 0.02 <= x <= 0.1) samples have been synthesized by traditional solid-state reaction technique and their structural transformation and dielectric properties investigated. X-ray diffraction (XRD) analysis revealed that BBTNS could form a homogeneous solid solution, and the transformation from tetragonal to pseudocubic phase occurred at 0.04 <= x <= 0.06. Optimized properties with stable epsilon(r) (similar to 1829 to 1838), small Delta epsilon/epsilon(25 degrees C) values (+/- 15%) over a broad temperature range from -60 degrees C to 140 degrees C, and low tan delta (<= 0.02) from 4 degrees C to 194 degrees C were obtained at x = 0.1. The relaxation and conduction process in the high-temperature region are attributed to thermal activation, and oxygen vacancies may be the ionic charge carriers in perovskite ferroelectrics.

引用

页码：2576 / 2583

页数：8

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