An approach to further improve piezoelectric properties of (K 0.5Na0.5)NbO3-based lead-free ceramics

Hongliang Du; Wancheng Zhou; Fa Luo; Dongmei Zhu; Shaobo Qu; Zhibin Pei

doi:10.1063/1.2815750

An approach to further improve piezoelectric properties of (K _0.5Na_0.5)NbO₃-based lead-free ceramics

Hongliang Du, Wancheng Zhou, Fa Luo, Dongmei Zhu, Shaobo Qu, Zhibin Pei

School of Materials Sience and Engineering

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

149 Scopus citations

Abstract

An approach to further improve piezoelectric properties of (1-x) (K0.5 Na0.5) Nb O3 -xLiNb O3 (KNLN) ceramics, i.e., the optimum poling temperatures (Tp) of KNLN ceramics should be chosen near the polymorphic phase transition temperatures, is proposed. This is contrary to conventional wisdom associated with electrical poling of ceramics. Piezoelectric constant d33 of KNLN (x=0.07) ceramics increases from 210 to 274 pCN by selecting optimum Tp. This result indicates that this approach is very effective in improving piezoelectric properties of KNLN ceramics. Moreover, this approach can also be applied to other (K0.5 Na0.5) Nb O3 based ceramics.

Original language	English
Article number	202907
Journal	Applied Physics Letters
Volume	91
Issue number	20
DOIs	https://doi.org/10.1063/1.2815750
State	Published - 2007

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title = "An approach to further improve piezoelectric properties of (K 0.5Na0.5)NbO3-based lead-free ceramics",

abstract = "An approach to further improve piezoelectric properties of (1-x) (K0.5 Na0.5) Nb O3 -xLiNb O3 (KNLN) ceramics, i.e., the optimum poling temperatures (Tp) of KNLN ceramics should be chosen near the polymorphic phase transition temperatures, is proposed. This is contrary to conventional wisdom associated with electrical poling of ceramics. Piezoelectric constant d33 of KNLN (x=0.07) ceramics increases from 210 to 274 pCN by selecting optimum Tp. This result indicates that this approach is very effective in improving piezoelectric properties of KNLN ceramics. Moreover, this approach can also be applied to other (K0.5 Na0.5) Nb O3 based ceramics.",

author = "Hongliang Du and Wancheng Zhou and Fa Luo and Dongmei Zhu and Shaobo Qu and Zhibin Pei",

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T1 - An approach to further improve piezoelectric properties of (K 0.5Na0.5)NbO3-based lead-free ceramics

AU - Du, Hongliang

AU - Zhou, Wancheng

AU - Luo, Fa

AU - Zhu, Dongmei

AU - Qu, Shaobo

AU - Pei, Zhibin

PY - 2007

Y1 - 2007

N2 - An approach to further improve piezoelectric properties of (1-x) (K0.5 Na0.5) Nb O3 -xLiNb O3 (KNLN) ceramics, i.e., the optimum poling temperatures (Tp) of KNLN ceramics should be chosen near the polymorphic phase transition temperatures, is proposed. This is contrary to conventional wisdom associated with electrical poling of ceramics. Piezoelectric constant d33 of KNLN (x=0.07) ceramics increases from 210 to 274 pCN by selecting optimum Tp. This result indicates that this approach is very effective in improving piezoelectric properties of KNLN ceramics. Moreover, this approach can also be applied to other (K0.5 Na0.5) Nb O3 based ceramics.

AB - An approach to further improve piezoelectric properties of (1-x) (K0.5 Na0.5) Nb O3 -xLiNb O3 (KNLN) ceramics, i.e., the optimum poling temperatures (Tp) of KNLN ceramics should be chosen near the polymorphic phase transition temperatures, is proposed. This is contrary to conventional wisdom associated with electrical poling of ceramics. Piezoelectric constant d33 of KNLN (x=0.07) ceramics increases from 210 to 274 pCN by selecting optimum Tp. This result indicates that this approach is very effective in improving piezoelectric properties of KNLN ceramics. Moreover, this approach can also be applied to other (K0.5 Na0.5) Nb O3 based ceramics.

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M3 - 文章

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JF - Applied Physics Letters

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An approach to further improve piezoelectric properties of (K _0.5Na_0.5)NbO₃-based lead-free ceramics

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