Dielectric relaxation behavior and energy storage properties in SrTiO3 ceramics with trace amounts of ZrO2 additives

Wang, Zhijian; Cao, Minghe; Yao, Zhonghua; Song, Zhe; Li, Guangyao; Hu, Wei; Hao, Hua; Liu, Hanxing

doi:10.1016/j.ceramint.2014.05.147

Cited by 92 publications

(27 citation statements)

References 24 publications

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“…Furthermore, the La 3+ modified AN ceramics with smaller grains will contain more grain boundaries, which can trap more charge carries and form localized Schottky barriers around them. This can also result in higher electrical resistivity and improved hold‐off voltage in dielectrics . As a result, La 3+ modified AgNbO 3 ceramics with higher electrical resistivity and larger breakdown electric field are achieved.…”

Section: Resultsmentioning

confidence: 99%

Lead‐free Ag_1−3xLa_xNbO₃ antiferroelectric ceramics with high‐energy storage density and efficiency

et al. 2019

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Environmentally benign lead-free bulk ceramics with high recoverable energy density (W rec ) are very attractive in advanced pulsed power capacitors. In this work, composition engineering was adopted by La 3+ modification to improve the energy storage performance of Ag 1−3x La x NbO 3 ceramics. It was found that the antiferroelectric (AFE) phase was stabilized after La 3+ substitution, as a result of the reduced tolerance factor t. Significant improvement of W rec and energy storage efficiency (η) were achieved with value of 3.12 J/cm 3 and 0.63 for x = 0.02 at an electric field of 230 kV/cm, more than 1.5 times the value of pure AgNbO 3 (W rec = 1.9 J/cm 3 , η = 0.40). The excellent energy storage properties are resulted from the increased antiferroelectric-ferroelectric phase transition electric field (E F ), ferroelectric-antiferroelectric phase transition electric field (E A ), and breakdown electric field (E b ). The enhanced E b was ascribed to the decreased grain size and increased electrical resistivity upon La 3+ modification. The feature makes Ag 1−3x-La x NbO 3 a potential candidate for energy storage applications. K E Y W O R D Sdielectric materials/properties, energy storage, ferroelectricity/ferroelectric materials, lead-free ceramics

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Section: Resultsmentioning

confidence: 99%

Lead‐free Ag_1−3xLa_xNbO₃ antiferroelectric ceramics with high‐energy storage density and efficiency

et al. 2019

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“…ZrO2 was selected as cation substitute the B-type site of SrTiO3, because Zr 4+ ions in SrTiO3 can stabilize the charge of Ti 4+ and suppress the oxygen dissociation when sintered at high temperature [13]. SrTiO3-SrZrO3 solid solution is one of them, which shows a super lattice structure due to its cell enlargement as a result of tilting of BO6 (B = Ti, Zr) octahedral [14]. This type of disorder perovskite solid solution offers exciting new possibilities both in the investigation of fundamental physical behaviour and in the exploitation of novel properties for various applications.…”

Section: Introductionmentioning

confidence: 99%

Physical and electrical properties of SrTiO₃and SrZrO₃

et al. 2017

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Abstract. Perovskite type oxide strontium titanate (SrTiO3) and strontium zirconate (SrZrO3) ceramic powder has been synthesized using conventional solid state reaction method. The powders were mixed and ground undergone calcinations at 1400 o C for 12 h and sintered at 1550 o C for 5h. X-ray Diffraction exposes physical properties SrTiO3 which exhibit cubic phase (space group: pm-3m) at room temperature meanwhile SrZrO3 has Orthorhombic phase (space group: pnma). The electrical properties such as dielectric constant (εr), dielectric loss (tan δ), and conductivity (σ) were studied in variation temperature and frequency. High dielectric constant of SrTiO3 and SrZrO3 were observed at 10 kHz for both samples about 240 and 21 respectively at room temperature. The dielectric loss of SrTiO3 and SrZrO3 is very low loss value approximately 0.00076 and 0.67512 indicates very good dielectric.

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“…It was reported that the breakdown strength is closely related to activation energy (E a ) and grain size [20][21][22]. According to the experiment results, E a is the most likely driving force for breakdown strength variation, and the change of grain size is unnoticeable when the BLT concentration exceeds 20 mol% (as seen in Fig.…”

Section: Resultsmentioning

confidence: 85%

Enhanced energy storage properties of Bi0.5Li0.5TiO3 modified Sr0.1Bi0.45Na0.45TiO3 based ceramics

et al. 2016

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Lead-free (1x)Sr 0.1 Bi 0.45 Na 0.45 TiO 3 xBi 0.5 Li 0.5 TiO 3 (x = 00.4) ceramics were successfully prepared by a solid-state reaction technique. The effects of amount of Bi 0.5 Li 0.5 TiO 3 on structure and electrical properties were examined. The X-ray diffraction (XRD) analysis revealed that all the investigated specimens have a perovskite structure. An obvious change in microstructure with the increase of Bi 0.5 Li 0.5 TiO 3 concentration was observed. This study demonstrated that relaxor could be stabilized in Sr 0.1 Bi 0.45 Na 0.45 TiO 3 based ceramics by lowering the tolerance factor and electronegativity difference. Besides, a dielectric anomaly related to thermal evolution of crystallographic symmetry was emerged at the depolarization temperature. Upon incorporation of 26 mol% Bi 0.5 Li 0.5 TiO 3 , the specimens were able to withstand an electric field intensity of 106.9 kV/cm with an energy density of 0.88 J/cm 3 and an energy efficiency of 65%.

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Dielectric relaxation behavior and energy storage properties in SrTiO3 ceramics with trace amounts of ZrO2 additives

Cited by 92 publications

References 24 publications

Lead‐free Ag_1−3xLa_xNbO₃ antiferroelectric ceramics with high‐energy storage density and efficiency

Lead‐free Ag_1−3xLa_xNbO₃ antiferroelectric ceramics with high‐energy storage density and efficiency

Physical and electrical properties of SrTiO₃and SrZrO₃

Enhanced energy storage properties of Bi0.5Li0.5TiO3 modified Sr0.1Bi0.45Na0.45TiO3 based ceramics

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Dielectric relaxation behavior and energy storage properties in SrTiO3 ceramics with trace amounts of ZrO2 additives

Cited by 92 publications

References 24 publications

Lead‐free Ag1−3xLaxNbO3 antiferroelectric ceramics with high‐energy storage density and efficiency

Lead‐free Ag1−3xLaxNbO3 antiferroelectric ceramics with high‐energy storage density and efficiency

Physical and electrical properties of SrTiO3and SrZrO3

Enhanced energy storage properties of Bi0.5Li0.5TiO3 modified Sr0.1Bi0.45Na0.45TiO3 based ceramics

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Lead‐free Ag_1−3xLa_xNbO₃ antiferroelectric ceramics with high‐energy storage density and efficiency

Lead‐free Ag_1−3xLa_xNbO₃ antiferroelectric ceramics with high‐energy storage density and efficiency

Physical and electrical properties of SrTiO₃and SrZrO₃