High electrostrictive strain induced by defect dipoles in acceptor-doped (K0.5Na0.5)NbO3ceramics

Dai, Yejing; Zhao, Yongjie; Zhao, Zhe; Zhao, Zhihao; Zhou, Qun; Zhang, Xiaowen

doi:10.1088/0022-3727/49/27/275303

Cited by 21 publications

(7 citation statements)

References 32 publications

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“…Similar results have also been observed in CuO‐added (Na 0.5 K 0.5 )NbO 3 and KNbO 3 ceramics without an aging process and it was suggested that the P D formed during the cooling process because of the high T C (or T O‐T ) . However, the (K 0.5 Na 0.5 )(Nb 0.99 Mn 0.01 )O 3 , Pb[(Zr 0.58 Ti 0.42 ) 0.99 Mn 0.01 ]O 3 , and CuO‐added (K 0.5 Na 0.5 )NbO 3 ceramics, which have a high T C (or T O‐T ), required an aging process to produce the P D . Therefore, more work is required to understand the formation process for the P D .…”

Section: Resultssupporting

confidence: 71%

“…However, an aging process was needed to develop the P D . A double P–E hysteresis loop was also observed for CuO‐added (Na 0.5 K 0.5 )NbO 3 ceramics owing to the P D formed between the Cu 2+ ions and the oxygen vacancies . A large electric field‐induced strain for this ceramic has been also reported .…”

Section: Introductionmentioning

confidence: 74%

“…A double P–E hysteresis loop was also observed for CuO‐added (Na 0.5 K 0.5 )NbO 3 ceramics owing to the P D formed between the Cu 2+ ions and the oxygen vacancies . A large electric field‐induced strain for this ceramic has been also reported . In this work, the electromechanical properties, especially the electric field‐induced strain for K(Nb 1− x Mn x )O 3 (KN 1− x M x ) ceramics with 0.0 ≤ x ≤ 0.02 were systematically investigated for applications to actuators devices.…”

Section: Introductionmentioning

confidence: 91%

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Large Electrostrain in K(Nb_1−xMn_x)O₃ Lead‐Free Piezoelectric Ceramics

Kim

Lee

et al. 2016

J. Am. Ceram. Soc.

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K(Nb1−xMnx)O3 (KN1−xMx) ceramics with 0.005 ≤ x ≤ 0.015 were sintered at 1020°C through a normal sintering process without the formation of a liquid phase. They exhibited double polarization versus electric field (P–E) hysteresis and sprout‐shaped strain versus electric field (S–E) curves owing to the presence of a defect dipole (PD), which was formed between the acceptor Mn3+ ion and the oxygen vacancy. Moreover, the aging process was not required to develop the PD. The KN1−xMx ceramics exhibited a large strain of ~0.2% at 6.0 kV/mm. For the KN0.985M0.015 ceramic, this large strain was maintained after 104 cycles of an electric field of 6.0 kV/mm. This ceramic also maintained a double hysteresis curve at 200°C. Therefore, the KN0.985M0.015 ceramic has a large electric field‐induced strain, along with good thermal and fatigue properties for multilayer piezoelectric actuators.

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Section: Resultssupporting

confidence: 71%

Section: Introductionmentioning

confidence: 74%

Section: Introductionmentioning

confidence: 91%

See 1 more Smart Citation

Large Electrostrain in K(Nb_1−xMn_x)O₃ Lead‐Free Piezoelectric Ceramics

Kim

Lee

et al. 2016

J. Am. Ceram. Soc.

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“…In the following period, a series of articles about aging, defect dipoles were reported, and the research systems covered almost all ABO 3 perovskite ferroelectrics. For the KNN system, the typical examples are Cu 2+ :KNN, ,− Mg 2+ :KNN, Mn 2+/3+ :KNbO 3 , Mn 2+/3+ :KNN, Cu 2+ :KNN–MgTiO 3 , and so on. For the (Bi 1/2 Na 1/2 )TiO 3 system, the typical examples involve Mn 2+/3+ :(Bi 1/2 Na 1/2 )TiO 3 , Fe 3+ :(Bi 1/2 Na 1/2 )TiO 3 , Fe 3+ :(Bi 1/2 Na 1/2 )TiO 3 –BaTiO 3 , Cu 2+ :(Bi 1/2 Na 1/2 )TiO 3 –BaTiO 3 , Mn 2+/3+ :(Bi 1/2 Na 1/2 )TiO 3 –SrTiO 3 , Cu 2+ :(Bi 1/2 Na 1/2 )TiO 3 –SrTiO 3 –BiFeO 3 , (Nb 5+ , Fe 3+ ):(Bi 1/2 Na 1/2 )TiO 3 –BaTiO 3 -(K 0.5 Na 0.5 )NbO 3 , Ta 5+ :(Bi 1/2 Na 1/2 )TiO 3 -(Bi 1/2 K 1/2 )TiO 3 –LiSbO 3 , and so on.…”

Section: Effect Of Defect On Latticementioning

confidence: 99%

Defects and Aliovalent Doping Engineering in Electroceramics

et al. 2020

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Since the positive influences of defects on the performance of electroceramics were discovered, investigations concerning on defects and aliovalent doping routes have grown rapidly in the fields of inorganic chemistry and condensed matter physics. In this article, we summarized the types of defects in electroceramics as well as characterization tools of defects and highlighted the effects of intrinsic and extrinsic defects on the material performances with the emphasis on dielectric, ferroelectric, and piezoelectric properties. We mainly introduced defect related theoretical simulation and experimental results in several typical incipient ferroelectrics, ferroelectrics, and antiferroelectrics. Hence, the influences of defects on the crystal lattice were summed up, and then the main physical mechanisms were highlighted. Particularly, the performance enhancements of aliovalently doped electroceramics were also evaluated and reviewed. Finally, the outlook and challenges were discussed on the basis of their current developments. This article covers not only an overview of the state-of-the-art advances of defects and aliovalent doping routes in electroceramics but also the future prospects that may open another window to tune the electrical performance of electroceramics via intentionally introducing certain defects.

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“…6 Acceptor doping leads to the formation of oxygen vacancies, which significantly affect the electrical properties of the piezoelectric materials. 7 Mn 2+ doped BS-PT ceramics form Mn Sc '-V O •• dipolar complexes, which exhibit the typical characteristics of hard materials with significantly reduced d 33 and dielectric loss. 8 Furthermore, aging phenomena, recoverable electrostriction, and double polarization (P)-electric field (E) hysteresis loops were reported in acceptor-doped ferroelectric materials.…”

Section: Introductionmentioning

confidence: 99%

Effect of acceptor–donor co‐doping on the microstructure and electrical properties of BiScO₃–PbTiO₃‐based ceramics

Kong,

Kang,

Wang

et al. 2023

J Am Ceram Soc.

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Designing BiScO3‐PbTiO3 (BS–PT) ceramics that merge high Curie temperature (TC) and large piezoelectric coefficient (d33) has always been a significant challenge for high‐temperature applications. Doping is a commonly used and effective method for enhancing the electrical performances of piezoelectric ceramics. In this study, the Li+/W6+ acceptor–donor co‐doping method was used to enhance the piezoelectric properties of 0.36BiSc1‐xLixO3–0.64PbTi1‐yWyO3 (0.36x = 0.64y) ceramics. The optimal electrical performance was observed at x = 0.01 near morphotropic phase boundaries (MPB), with a large d33 (505 pC/N), high TC (407°C), huge remnant polarization (Pr ∼ 40.9 μC/cm2), and inverse piezoelectric coefficient (d33* = 601 pm/V). Rietveld refinement and piezoelectric force microscopy results revealed that incorporating Li+/W6+ into the BS–PT ceramics decreased the T phase proportion and domain size and increased the domain wall density. The enhancement in piezoelectricity can be attributed to the lowered energy barrier resulting from the reduced T‐phase proportion and complex domain structure, which promotes polarization rotation and facilitates domain wall motion. This work demonstrates that acceptor–donor co‐doping is a promising strategy for optimizing the electrical performance of the BS–PT ceramics.This article is protected by copyright. All rights reserved

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High electrostrictive strain induced by defect dipoles in acceptor-doped (K_0.5Na_0.5)NbO₃ceramics

Cited by 21 publications

References 32 publications

Large Electrostrain in K(Nb_1−xMn_x)O₃ Lead‐Free Piezoelectric Ceramics

Large Electrostrain in K(Nb_1−xMn_x)O₃ Lead‐Free Piezoelectric Ceramics

Defects and Aliovalent Doping Engineering in Electroceramics

Effect of acceptor–donor co‐doping on the microstructure and electrical properties of BiScO₃–PbTiO₃‐based ceramics

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High electrostrictive strain induced by defect dipoles in acceptor-doped (K0.5Na0.5)NbO3ceramics

Cited by 21 publications

References 32 publications

Large Electrostrain in K(Nb1−xMnx)O3 Lead‐Free Piezoelectric Ceramics

Large Electrostrain in K(Nb1−xMnx)O3 Lead‐Free Piezoelectric Ceramics

Defects and Aliovalent Doping Engineering in Electroceramics

Effect of acceptor–donor co‐doping on the microstructure and electrical properties of BiScO3–PbTiO3‐based ceramics

Contact Info

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High electrostrictive strain induced by defect dipoles in acceptor-doped (K_0.5Na_0.5)NbO₃ceramics

Large Electrostrain in K(Nb_1−xMn_x)O₃ Lead‐Free Piezoelectric Ceramics

Large Electrostrain in K(Nb_1−xMn_x)O₃ Lead‐Free Piezoelectric Ceramics

Effect of acceptor–donor co‐doping on the microstructure and electrical properties of BiScO₃–PbTiO₃‐based ceramics