Bismuth ferrite-modified lead-free ceramics with reduced sintering temperature and improved energy storage properties

被引：3
|
作者：
Kong, Xi [1 ]
Yang, Letao [1 ]
Luo, Zixi [1 ]
Liu, Yiqian [1 ]
Lan, Shun [1 ]
Yang, Bingbing [1 ]
Meng, Fanqi [1 ]
Ren, Weibin [1 ]
Zhang, Xinyue [1 ]
Cai, Jinghan [1 ]
Lin, Yuan-Hua [1 ]
Guo, Jinming [1 ,2 ]
Nan, Ce-Wen [1 ]
机构：
[1] Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
[2] Hubei Univ, Sch Mat Sci & Engn, Key Lab Green Preparat & Applicat Funct Mat, Minist Educ, Wuhan 430062, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2023年 / 122卷 / 18期
基金：
中国博士后科学基金;
关键词：
DENSITY; CAPACITORS; EFFICIENCY; DIELECTRICS;
D O I：
10.1063/5.0145299
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Dielectric ceramics with high polarization and low sintering temperature are important for high-performance and low-cost multilayer ceramic capacitors (MLCCs). Herein, BiFeO3 was added to a lead-free composition 0.48BaTiO(3)-0.4Bi(Mg0.5Hf0.5)O-3-0.12SrTiO(3) to lower the sintering temperature and increase the polarization simultaneously. As a result, a low sintering temperature of 950 degrees C and high comprehensive energy storage properties with a recoverable energy density W-rec of 5.7 J/cm(3) and an energy efficiency eta of 92% at 450 kV/cm were achieved. Together with the good temperature stability and cycling stability of Wrec and g, the ceramics exhibit great potential in the energy storage MLCCs with low-cost Ag-Pd electrodes with a high Ag content.
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页数：6
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