Fine-grained BNT-based lead-free composite ceramics with high energy-storage density

被引：92

作者：

Ma, Weigang ^{[1
]}

Fan, Pengyuan ^{[1
]}

Salamon, David ^{[2
]}

Kongparakul, Suwadee ^{[3
]}

Samart, Chanatip ^{[3
]}

Zhang, Ting ^{[4
]}

Zhang, Guangzu ^{[5
,6
]}

Jiang, Shenglin ^{[5
,6
]}

Chang, Jun-Jie ^{[7
,8
]}

Zhang, Haibo ^{[1
,6
]}

机构：

[1] HUST, Sch Mat Sci & Engn, Wuhan 430074, Hubei, Peoples R China

[2] Brno Univ Technol, Fac Mech Engn, Dept Ceram & Polymers, Brno, Czech Republic

[3] Thammasat Univ, Fac Sci & Technol, Dept Chem, Pathum Thani 12120, Thailand

[4] Shenzhen Zhenhua Fu Elect Co Ltd, Shenzhen 518109, Guangdong, Peoples R China

[5] HUST, Sch Opt & Elect Informat, Wuhan 430074, Hubei, Peoples R China

[6] HUST, Minist Educ, Engn Res Ctr Funct Ceram, Wuhan 430074, Hubei, Peoples R China

[7] Nanchang Hangkong Univ, Minist Educ, Key Lab Nondestruct Testing, Nanchang 330063, Jiangxi, Peoples R China

[8] Japan Probe, 1-1-14 Nakamura Chou Minami Ward, Yokohama, Kanagawa 2320033, Japan

来源：

CERAMICS INTERNATIONAL | 2019年 / 45卷 / 16期

基金：

中国国家自然科学基金;

关键词：

Energy-storage; Low-temperature sintering; Grain size; Breakdown strength; Temperature stability; PIEZOELECTRIC PROPERTIES; FERROELECTRIC CERAMICS; ELECTRIC-FIELD; TEMPERATURE; PERFORMANCE; STABILITY; FUTURE; FILMS;

D O I：

10.1016/j.ceramint.2019.06.245

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The low breakdown strength of BNT-based dielectric ceramics limits the increase in energy-storage density. In this study, we successfully reduced the sintering temperature of BNT-ST-5AN relaxor ferroelectric ceramics from 1150 to 980 degrees C by two-phase compounding with nano-SiO2. Meanwhile, the average grain size of the composite ceramics is also greatly reduced from 4.45 mu m to 0.37 mu m. Thus, a large recoverable energy-storage density (3.22 J/cm(3)) is achieved under the ultrahigh breakdown strength (316 kV/cm). Moreover, good temperature (25-150 degrees C) and frequency (10-200 Hz) stabilities are simultaneously achieved. The excellent energy-storage properties suggest that BNT-ST-based ceramics composited with SiO2 form a promising low-temperature sintered dielectric material for pulsed power multilayer ceramic capacitors.

引用

页码：19895 / 19901

页数：7

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