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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
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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