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

Jong Hyun Kim; Dae Hyeon Kim; Tae Ho Lee; Tae Gon Lee; Ji Hyun Lee; Bo Yun Kim; Sahn Nahm; Chong Yun Kang; Jungho Ryu; J. Jones

doi:10.1111/jace.14469

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

Jong Hyun Kim, Dae Hyeon Kim, Tae Ho Lee, Tae Gon Lee, Ji Hyun Lee, Bo Yun Kim, Sahn Nahm, Chong Yun Kang, Jungho Ryu, J. Jones

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

K(Nb_1−xMn_x)O₃ (KN_1−xM_x) 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 (P_D), which was formed between the acceptor Mn³⁺ ion and the oxygen vacancy. Moreover, the aging process was not required to develop the P_D. The KN_1−xM_x ceramics exhibited a large strain of ~0.2% at 6.0 kV/mm. For the KN_0.985M_0.015 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 KN_0.985M_0.015 ceramic has a large electric field-induced strain, along with good thermal and fatigue properties for multilayer piezoelectric actuators.

Original language	English
Pages (from-to)	4031-4038
Number of pages	8
Journal	Journal of the American Ceramic Society
Volume	99
Issue number	12
DOIs	https://doi.org/10.1111/jace.14469
Publication status	Published - 2016 Dec 1

Keywords

ferroelectricity/ferroelectric materials
lead-free ceramics
piezoelectric materials/properties

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

Access to Document

10.1111/jace.14469

Cite this

@article{83879a16930a45bba2ff6e39f640aa0a,

title = "Large Electrostrain in K(Nb1−xMnx)O3 Lead-Free Piezoelectric Ceramics",

abstract = "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.",

keywords = "ferroelectricity/ferroelectric materials, lead-free ceramics, piezoelectric materials/properties",

author = "Kim, {Jong Hyun} and Kim, {Dae Hyeon} and Lee, {Tae Ho} and Lee, {Tae Gon} and Lee, {Ji Hyun} and Kim, {Bo Yun} and Sahn Nahm and Kang, {Chong Yun} and Jungho Ryu and J. Jones",

note = "Funding Information: This research was supported by the Commercialization Promotion Agency for R&D Outcomes (COMPA) funded by the Ministry of Science, ICT and Future Planning (MISP). Publisher Copyright: {\textcopyright} 2016 The American Ceramic Society",

year = "2016",

month = dec,

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doi = "10.1111/jace.14469",

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T1 - Large Electrostrain in K(Nb1−xMnx)O3 Lead-Free Piezoelectric Ceramics

AU - Kim, Jong Hyun

AU - Kim, Dae Hyeon

AU - Lee, Tae Ho

AU - Lee, Tae Gon

AU - Lee, Ji Hyun

AU - Kim, Bo Yun

AU - Nahm, Sahn

AU - Kang, Chong Yun

AU - Ryu, Jungho

AU - Jones, J.

N1 - Funding Information: This research was supported by the Commercialization Promotion Agency for R&D Outcomes (COMPA) funded by the Ministry of Science, ICT and Future Planning (MISP). Publisher Copyright: © 2016 The American Ceramic Society

PY - 2016/12/1

Y1 - 2016/12/1

N2 - 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.

AB - 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.

KW - ferroelectricity/ferroelectric materials

KW - lead-free ceramics

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