Structure, dielectric and ferroelectric properties of lead free (K,Na)(Nb)O3-xBiErO3 piezoelectric ceramics

Muhammad Qadeer Awan; Javed Ahmad; Lasse Norén; Teng Lu; Yun Liu

doi:10.1007/s10854-018-8702-3

Structure, dielectric and ferroelectric properties of lead free (K,Na)(Nb)O₃-xBiErO₃ piezoelectric ceramics

Muhammad Qadeer Awan^*, Javed Ahmad, Lasse Norén, Teng Lu, Yun Liu

^*Corresponding author for this work

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

5 Citations (Scopus)

Abstract

The effect of BiErO₃ (BE) as a doping material on the structural, dielectric and ferroelectric properties of (KNa)NbO₃ ceramics was explored in this research. Co-existence of two phase regions was confirmed in the composition range at x = 0.5% and x = 1.0%. The addition of BE content led to a decrease of the grain size and the ceramics became denser. Bulk P–E hysteresis loops were obtained with a maximum polarization of P_max = 30.56 µC/cm² and a remnant polarization of P_r = 25.10 µC/cm², along with a coercive field of E_c ~ 11.26 kV/cm. The results revealed that a field strain value of ~ 0.26 for x = 0.5% of BE substitution was attained. This presents outstanding piezoelectric and dielectric properties.

Original language	English
Pages (from-to)	7142-7151
Number of pages	10
Journal	Journal of Materials Science: Materials in Electronics
Volume	29
Issue number	9
DOIs	https://doi.org/10.1007/s10854-018-8702-3
Publication status	Published - 1 May 2018

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title = "Structure, dielectric and ferroelectric properties of lead free (K,Na)(Nb)O3-xBiErO3 piezoelectric ceramics",

abstract = "The effect of BiErO3 (BE) as a doping material on the structural, dielectric and ferroelectric properties of (KNa)NbO3 ceramics was explored in this research. Co-existence of two phase regions was confirmed in the composition range at x = 0.5% and x = 1.0%. The addition of BE content led to a decrease of the grain size and the ceramics became denser. Bulk P–E hysteresis loops were obtained with a maximum polarization of Pmax = 30.56 µC/cm2 and a remnant polarization of Pr = 25.10 µC/cm2, along with a coercive field of Ec ~ 11.26 kV/cm. The results revealed that a field strain value of ~ 0.26 for x = 0.5% of BE substitution was attained. This presents outstanding piezoelectric and dielectric properties.",

author = "Awan, {Muhammad Qadeer} and Javed Ahmad and Lasse Nor{\'e}n and Teng Lu and Yun Liu",

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T1 - Structure, dielectric and ferroelectric properties of lead free (K,Na)(Nb)O3-xBiErO3 piezoelectric ceramics

AU - Awan, Muhammad Qadeer

AU - Ahmad, Javed

AU - Norén, Lasse

AU - Lu, Teng

AU - Liu, Yun

PY - 2018/5/1

Y1 - 2018/5/1

N2 - The effect of BiErO3 (BE) as a doping material on the structural, dielectric and ferroelectric properties of (KNa)NbO3 ceramics was explored in this research. Co-existence of two phase regions was confirmed in the composition range at x = 0.5% and x = 1.0%. The addition of BE content led to a decrease of the grain size and the ceramics became denser. Bulk P–E hysteresis loops were obtained with a maximum polarization of Pmax = 30.56 µC/cm2 and a remnant polarization of Pr = 25.10 µC/cm2, along with a coercive field of Ec ~ 11.26 kV/cm. The results revealed that a field strain value of ~ 0.26 for x = 0.5% of BE substitution was attained. This presents outstanding piezoelectric and dielectric properties.

AB - The effect of BiErO3 (BE) as a doping material on the structural, dielectric and ferroelectric properties of (KNa)NbO3 ceramics was explored in this research. Co-existence of two phase regions was confirmed in the composition range at x = 0.5% and x = 1.0%. The addition of BE content led to a decrease of the grain size and the ceramics became denser. Bulk P–E hysteresis loops were obtained with a maximum polarization of Pmax = 30.56 µC/cm2 and a remnant polarization of Pr = 25.10 µC/cm2, along with a coercive field of Ec ~ 11.26 kV/cm. The results revealed that a field strain value of ~ 0.26 for x = 0.5% of BE substitution was attained. This presents outstanding piezoelectric and dielectric properties.

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JF - Journal of Materials Science: Materials in Electronics

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Structure, dielectric and ferroelectric properties of lead free (K,Na)(Nb)O₃-xBiErO₃ piezoelectric ceramics

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