Temperature-stable dielectric and energy storage properties of (0.94Bi0.47Na0.47Ba0.06TiO3-0.06BiAlO3)-NaNbO3 ceramics

被引：19

作者：

Liu, Li-na ^{[1
]}

Chen, Xiao-ming ^{[1
]}

Lian, Han-li ^{[2
]}

Wang, Xing-xing ^{[1
]}

Lu, Jiang-bo ^{[1
]}

Liu, Xiao ^{[1
]}

Zhou, Jian-ping ^{[1
]}

Liu, Peng ^{[1
]}

机构：

[1] Shaanxi Normal Univ, Sch Phys & Informat Technol, Xian 710119, Peoples R China

[2] Xian Univ Posts & Telecommun, Sch Sci, Xian 710121, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2020年 / 847卷

基金：

中国国家自然科学基金;

关键词：

Electroceramics; Dielectric properties; Ferroelectric properties; Microstructure; PIEZOELECTRIC PROPERTIES; ELECTRICAL-PROPERTIES; PERMITTIVITY; MICROSTRUCTURE; PERFORMANCE; BEHAVIOR; DENSITY;

D O I：

10.1016/j.jallcom.2020.156409

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The lead-free ceramics (1-x)(0.94Bi(0.47)Na(0.47)Ba(0.06)TiO(3)-0.06BiAlO(3))-xNaNbO(3) were prepared by means of a traditional solid-state sintering method. All ceramics have pure perovskite structure and average grain sizes around 1 mu m. Their dielectric and energy storage behavior were studied. The NaNbO3-doped ceramics display drastically reduced temperature coefficient of capacitance (TCC) compared to the ceramics without doping. The samples with x = 0.02 exhibit high permittivity and excellent temperature stability between 67 degrees C and 380 degrees C, meeting the requirement of TCC <= +/- 15%. The energy storage density was greatly improved to 1.71 J/cm(3) as x = 0.03, showing excellent frequency stability from 0.5 Hz to 100 Hz, great temperature stability from 25 degrees C to 130 degrees C, and excellent fatigue resistance within 10(5) fatigue cycles. (C) 2020 Elsevier B.V. All rights reserved.

引用

页数：8

共 37 条

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