Dielectric and energy storage properties of Mn-doped Ba0.3Sr0.475 La0.12Ce0.03TiO3 dielectric ceramics

2017 ◽  
Vol 37 (1) ◽  
pp. 107-114 ◽  
Author(s):  
X.Y. Ye ◽  
Y.M. Li ◽  
J.J. Bian
2021 ◽  
Vol 47 (3) ◽  
pp. 3713-3719
Author(s):  
Tian Wei ◽  
Kai Liu ◽  
Pengyuan Fan ◽  
Daju Lu ◽  
Baohua Ye ◽  
...  

2020 ◽  
pp. 1-10
Author(s):  
Jinbo Wang ◽  
Huiqing Fan

The validity of Mn element on enhanced energy storage performance and fatigue resistance of Mn-doped 0.7Na0.5Bi0.5TiO3–0.3Sr0.7Bi0.2TiO3 lead-free ferroelectric ceramics (BNT–BST–xMn) is certified by doping. The effects of Mn modification on the dielectric behavior, ferroelectric, energy storage properties, and AC impedance are comprehensively investigated. It is found that the average grain size of the ceramics modified by Mn additions is reduced slightly. Moreover, the relaxor properties are evidently enhanced with the increased Mn content. The AC impedance spectra can even better clarify the dielectric response and relaxor behavior. The results suggest that both of the dielectric response and relaxor behavior are determined by defects especially concentration of the oxygen vacancy. The superior energy storage properties are realized at x = 0.05 with an energy storage density (Wrec) of 1.33 J/cm3 as well as energy storage efficiency (η) of 86.2% at 100 kV/cm, accompanied with a superior thermal stability. BNT–BST–5Mn ceramics can maintain a stable energy storage performance within 106 fatigue cycles, indicating an excellent fatigue resistance.


2020 ◽  
Vol 8 (17) ◽  
pp. 5681-5691 ◽  
Author(s):  
Pengyuan Fan ◽  
Shan-Tao Zhang ◽  
Jiwen Xu ◽  
Jiadong Zang ◽  
Chanatip Samart ◽  
...  

Compared with the relaxor with pinched P–E loops, the relaxor/antiferroelectric (RE/AFE) composites have narrower and oblique curves, proving the design of RE/AFE is an effective method to improve the energy storage properties of dielectric ceramics.


2019 ◽  
Vol 7 (45) ◽  
pp. 14384-14393 ◽  
Author(s):  
Yongping Pu ◽  
Wen Wang ◽  
Xu Guo ◽  
Ruike Shi ◽  
Mengdie Yang ◽  
...  

Dielectric materials with high energy densities and efficiencies are greatly required in the field of power electronics to satisfy demand.


2018 ◽  
Vol 08 (06) ◽  
pp. 1830005 ◽  
Author(s):  
Feng Li ◽  
Jiwei Zhai ◽  
Bo Shen ◽  
Huarong Zeng

Increasing concern has been focused on the search for ecofriendly dielectric ceramics to meet the extensive demands of pulsed capacitors. Due to the advantages of high-energy storage density, efficiency, and excellent temperature stability, optimization of energy storage performance in dielectric ceramics has been a goal in the past decades. This review summarizes the recently reported progress in energy storage properties of typical perovskite-type lead-free ceramics. The advantages and shortcomings in the various kinds of ceramics are discussed. Finally, future prospects are presented to provide some guidelines for the exploration of new materials.


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