Dielectric and piezoelectric properties and PTC behavior of Ba0.9Ca0.1Ti0.9Zr0.1O3−xLa ceramics prepared by hydrothermal method

Sun, Zixiong; Pu, Yongping; Dong, Zijing; Hu, Yao; Liu, Xiaoyan; Wang, Peikui; Meng, Guang

doi:10.1016/j.matlet.2013.12.043

“…Sun et al reported that a small amount of La 3+ (~0.15%) resulted in an increase of d 33 at 50 • C due to the coexistence of orthorhombic and tetragonal phases. Besides, the 0.15 mol% La doped BZT-BCT ceramics turned to the semi-conductor and showed positive temperature coefficient (PTC) behavior [46]. Other donor dopants such as Cr 3+ and Ga 3+ also showed excellent improvements of d 33 [47,48].…”

Section: Donor Dopingmentioning

confidence: 98%

“…They obtained d 33 of 500 pC/N [39,65]. CuO was also found to be effective on decreasing sintering temperature and modifying the microstructure of BZT-BCT ceramics, thua enhanced piezoelectric properties were achieved due to the large grain size cause by CuO [30,46,54]. The co-doping of CuO and B 2 O 3 can largely benefit the morphology and enhance the piezoelectric properties [66].…”

Section: Grain Size Effect and Sintering Aidsmentioning

confidence: 99%

Prospective of (BaCa)(ZrTi)O3 Lead-free Piezoelectric Ceramics

Liu

¹

,

Cheng

²

,

Li

³

2019

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Piezoelectric ceramics is a functional material that can convert mechanical energy into electrical energy and vice versa. It can find wide applications ranging from our daily life to high-end techniques and dominates a billion-dollar market. For half a century, the working horse of the field has been the polycrystalline PbZr1−xTixO3 (PZT), which is now globally resisted for containing the toxic element lead. In 2009, our group discovered a non-Pb piezoelectric material, (BaCa)(ZrTi)O3 ceramics (BZT-BCT), which exhibits an ultrahigh piezoelectric coefficient d33 of 560–620 pC/N. This result brought extensive interest in the research field and important consequences for the piezoelectric industry that has relied on PZT. In the present paper, we review the recent progress, both experimental and theoretical, in the BZT-BCT ceramics.

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“…Sun et al reported that a small amount of La 3+ (~0.15%) resulted in an increase of d 33 at 50 • C due to the coexistence of orthorhombic and tetragonal phases. Besides, the 0.15 mol% La doped BZT-BCT ceramics turned to the semi-conductor and showed positive temperature coefficient (PTC) behavior [46]. Other donor dopants such as Cr 3+ and Ga 3+ also showed excellent improvements of d 33 [47,48].…”

Section: Donor Dopingmentioning

confidence: 99%

“…They obtained d 33 of 500 pC/N [39,65]. CuO was also found to be effective on decreasing sintering temperature and modifying the microstructure of BZT-BCT ceramics, thua enhanced piezoelectric properties were achieved due to the large grain size cause by CuO [30,46,54]. The co-doping of CuO and B 2 O 3 can largely benefit the morphology and enhance the piezoelectric properties [66].…”

Section: Grain Size Effect and Sintering Aidsmentioning

confidence: 99%

Synthesis and Characterization of Ferroelectrics

2021

0

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“…The saturated and remnant polarizations of BCZT ( P s = 57.88, P r = 19.45, μC cm −2 ) were higher than that of NFO/BCZT. It had been reported that doping with Ca 2+ at A-site and substitution of B-site with Zr 4+ could give rise to a lower dielectric loss and larger d 33 [99,100,101,102].…”

Section: Bczt Thin Films For Enhancement Of Dielectric Propertiesmentioning

confidence: 99%

Dielectric and Energy Storage Properties of Ba(1−x)CaxZryTi(1−y)O3 (BCZT): A Review

Maraj

¹

,

Wei

²

,

Peng

³

et al. 2019

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The Ba(1−x)CaxZryTi(1−y)O3 (BCZT), a lead-free ceramic material, has attracted the scientific community since 2009 due to its large piezoelectric coefficient and resulting high dielectric permittivity. This perovskite material is a characteristic dielectric material for the pulsed power capacitors industry currently, which in turn leads to devices for effective storage and supply of electric energy. After this remarkable achievement in the area of lead-free piezoelectric ceramics, the researchers are exploring both the bulk as well as thin films of this perovskite material. It is observed that the thin film of this materials have outstandingly high power densities and high energy densities which is suitable for electrochemical supercapacitor applications. From a functional materials point of view this material has also gained attention in multiferroic composite material as the ferroelectric constituent of these composites and has provided extraordinary electric properties. This article presents a review on the relevant scientific advancements that have been made by using the BCZT materials for electric energy storage applications by optimizing its dielectric properties. The article starts with a BCZT introduction and discussion of the need of this material for high energy density capacitors, followed by different synthesis techniques and the effect on dielectric properties of doping different materials in BCZT. The advantages of thin film BCZT material over bulk counterparts are also discussed and its use as one of the constituents of mutiferroic composites is also presented. Finally, it summarizes the future prospects of this material followed by the conclusions.

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Dielectric and piezoelectric properties and PTC behavior of Ba0.9Ca0.1Ti0.9Zr0.1O3−xLa ceramics prepared by hydrothermal method

Cited by 30 publications

References 9 publications

Prospective of (BaCa)(ZrTi)O3 Lead-free Piezoelectric Ceramics

Prospective of (BaCa)(ZrTi)O3 Lead-free Piezoelectric Ceramics

Synthesis and Characterization of Ferroelectrics

Dielectric and Energy Storage Properties of Ba(1−x)CaxZryTi(1−y)O3 (BCZT): A Review

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