Excellent strain properties in (K,Na)NbO3-based piezoceramics induced by lamination composite strategy

Dong, Zhihao; Zhao, Peiyao; Ma, Xing; Guo, Limin; Li, Longtu; Wang, Xiao Hui

doi:10.1016/j.cej.2023.144763

Chemical Engineering Journal

2023

DOI: 10.1016/j.cej.2023.144763

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Excellent strain properties in (K,Na)NbO3-based piezoceramics induced by lamination composite strategy

Zhihao Dong

Peiyao Zhao

Xing Ma

et al.

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2024

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Cited by 3 publications

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High Temperature‐Insensitive Electrostrain Obtained in (K, Na)NbO₃‐Based Lead‐Free Piezoceramics

Liu,

Yang,

et al. 2024

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Over the last decades, notable progress is achieved in (K, Na)NbO3 (KNN)‐based lead‐free piezoceramics. However, more studies are conducted to increase its piezoelectric charge coefficient (d33). For actuator applications, piezoceramics need high electric‐field induced strain under low electric fields while maintaining exceptional temperature stability across a wide temperature range. In this study, this work developes Li/Sb‐codoped KNN (LKNNS) ceramics with high electrostrain by defect engineering and domain engineering. A remarkable strain of 0.43%, along with a giant d33* value of 2177 pm V−1, is attained in the LKNNS ceramic at 20 kV cm−1. The ceramic exhibits a minimal performance decrease of less than 15% over a temperature range from room temperature to 150 °C. The exceptional strain is attributed to the presence of A‐site vacancy‐oxygen vacancy () defect dipoles and the increase in nano‐domains. The hierarchical domain configuration and defect dipoles impede the switched domains from reverting to their original state as temperature increases, furthermore, the elongated dipole moments of caused by rising temperatures compensate for strain reduction results in exceptional temperature stability. This study provides a model for designing piezoelectric materials with exceptional overall performance under low electric fields and across a wide temperature range.

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High Temperature‐Insensitive Electrostrain Obtained in (K, Na)NbO₃‐Based Lead‐Free Piezoceramics

Liu,

Yang,

et al. 2024

Small

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“Reinforced concrete” design of robust mineralized cellulose composite with multilayered structure for efficient CO2 capture and passive radiative cooling ability

Huang,

Yu,

Chen

et al. 2024

Composites Science and Technology

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Realization of ultra-high temperature stability and excellent electrical properties in LTO-based ceramics via A/B-site co-doing

Tang,

Tan,

Xing

et al. 2024

Journal of the European Ceramic Society

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Excellent strain properties in (K,Na)NbO3-based piezoceramics induced by lamination composite strategy

Cited by 3 publications

References 48 publications

High Temperature‐Insensitive Electrostrain Obtained in (K, Na)NbO₃‐Based Lead‐Free Piezoceramics

High Temperature‐Insensitive Electrostrain Obtained in (K, Na)NbO₃‐Based Lead‐Free Piezoceramics

“Reinforced concrete” design of robust mineralized cellulose composite with multilayered structure for efficient CO2 capture and passive radiative cooling ability

Realization of ultra-high temperature stability and excellent electrical properties in LTO-based ceramics via A/B-site co-doing

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About

Excellent strain properties in (K,Na)NbO3-based piezoceramics induced by lamination composite strategy

Cited by 3 publications

References 48 publications

High Temperature‐Insensitive Electrostrain Obtained in (K, Na)NbO3‐Based Lead‐Free Piezoceramics

High Temperature‐Insensitive Electrostrain Obtained in (K, Na)NbO3‐Based Lead‐Free Piezoceramics

“Reinforced concrete” design of robust mineralized cellulose composite with multilayered structure for efficient CO2 capture and passive radiative cooling ability

Realization of ultra-high temperature stability and excellent electrical properties in LTO-based ceramics via A/B-site co-doing

Contact Info

Product

Resources

About

High Temperature‐Insensitive Electrostrain Obtained in (K, Na)NbO₃‐Based Lead‐Free Piezoceramics

High Temperature‐Insensitive Electrostrain Obtained in (K, Na)NbO₃‐Based Lead‐Free Piezoceramics