Enhanced energy storage properties and good stability of novel (1- x ) Na0.5 Bi0.5 TiO3- x Ca(Mg1/3 Nb2/3 )O3 relaxor ferroelectric ceramics prepared by chemical modification

被引:10
作者
Zhang, Ying [1 ]
Yan, Meng -Han [1 ]
Zhang, Zhi-Fei [1 ]
Bai, Hai-Rui [2 ]
Li, Peng [1 ]
Han, Wei-Fang [1 ]
Hao, Ji-Gong [1 ]
Li, Wei [1 ]
Li, Yu -Chao [1 ]
Wang, Chun -Ming [3 ]
Fu, Peng [1 ,3 ]
机构
[1] Liaocheng Univ, Sch Mat Sci & Engn, Liaocheng 252059, Peoples R China
[2] Shandong Lab Yantai Adv Mat & Green Mfg, 300 Changjiang Rd, Yantai 264006, Peoples R China
[3] Shandong Univ, Sch Phys, Jinan 250100, Peoples R China
基金
中国国家自然科学基金;
关键词
ceramics; Relaxor ferroelectrics; Breakdown field strength; Energy storage properties; Stability; ( 1- x )Na 0.5 Bi 0.5 TiO 3- x Ca(Mg 1/3 Nb 2/3 )O 3; LEAD-FREE CERAMICS; LOW ELECTRIC-FIELDS; EXCELLENT STABILITY; BREAKDOWN STRENGTH; DENSITY; PERFORMANCE; PHASE; TEMPERATURE; EFFICIENCY; DIELECTRICS;
D O I
10.1016/j.jmat.2023.09.009
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 increase in energy consumption and its collateral damage on the environment has encouraged the development of environment-friendly ceramic materials with good energy storage properties. In this work, (1-x)Na0.5Bi0.5TiO3-xCa(Mg1/3Nb2/3)O3 ceramics were synthesized by the solid-state reaction method. The 0.88Na0.5Bi0.5TiO3-0.12Ca(Mg1/3Nb2/3)O3 ceramic exhibited a high recoverable energy storage density of 8.1 J/cm3 and energy storage efficiency of 82.4% at 550 kV/cm. The introduction of Ca(Mg1/3Nb2/3)O3 reduced the grain size and increased the band gap, thereby enhancing the breakdown field strength of the ceramic materials. The method also resulted in good temperature stability (20 -140 degrees C), frequency stability (1-200 Hz), and fatigue stability over 106 cycles. In addition, an ultrahigh power density of 187 MW/cm3 and a fast charge-discharge rate (t0.9 = 57.2 ns) can be obtained simultaneously. Finite element method analysis revealed that the decrease of grain size was beneficial to the increase of breakdown field strength. Therefore, the 0.88Na0.5Bi0.5TiO3-0.12Ca(Mg1/3Nb2/3)O3 ceramics resulted in high energy storage properties with good stability and were promising environment-friendly materials for advanced pulsed power systems applications. (c) 2023 The Authors. Published by Elsevier B.V. on behalf of The Chinese Ceramic Society. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
引用
收藏
页码:770 / 782
页数:13
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