EFFECT OF TEMPERATURE ON DIELECTRIC, FERROELECTRIC, AND PIEZOELECTRIC PROPERTIES OF KNLNS-BNKZ CERAMICS

Phan Dinh Gio, Bui Thi Tuyet Nhung

Abstract


Traditional ceramic technology combined with a two-step sintering technique has been applied to prepare 0.96(K0.48Na0.48Li0.04)(Nb0.95Sb0.05)O3-0.04Bi0.5(Na0.82K0.18)0.5ZrO3 (KNLNS-BNKZ) piezoelectric ceramics. The experimental results show that the ceramic samples have a pure perovskite structure with the coexistence of tetragonal and rhombohedral phases. Effects of temperature on the dielectric, ferroelectric, and piezoelectric properties of the ceramics were investigated in detail. The results show that the characteristic parameters for the piezoelectric and ferroelectric properties of the ceramics, such as the electromechanical coupling coefficient kp, the piezoelectric factor d31, and the remnant polarization Pr are largely stable from room temperature to 100 °C.


Keywords


Dielectric; Electromechanical coupling coefficient; KNLNS-BNKZ ceramics; Two-step sintering.

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References


Jaffe, B., Cook, W. R., & Jaffe, H. (1971). Piezoelectric ceramics. Academic Press.

Jaffe, H., Berlincourt, D., Kinsley, T., Lambert, T. M., & Schwartz, D. (1961). IRE standards on piezoelectric crystals: Measurements of piezoelectric ceramics. Proceedings of the Institute of Radio Engineers, 49(7), 1161-1169.

Qin, Y., Zhang, J. L., Yao, W., Lu, C., & Zhang, S. (2016). Domain configuration and thermal stability of (K0.48Na0.52)(Nb0.96Sb0.04)O3-Bi0.5(Na0.82K0.18)0.5ZrO3 piezoceramics with high d33 coefficient. American Chemical Society Applied Materials & Interfaces, 8(11), 7257-7265.

Ramajo, L. A., Taub, J., & Castro, M. S. (2014). Effect of ZnO addition on the structure, microstructure and dielectric and piezoelectric properties of K0.5Na0.5NbO3 ceramics. Materials Research. 17(3), 728-733.

Saito, Y., Takao, H., Tani, T., Nonoyama, T., Takatori, K., Homma, T., Nagaya, T., & Nakamura, M. (2004). Lead-free piezoceramics. Nature, 432(7013), 84-87.

Sutharsini, U., Thanihaichelvan, M., & Singh, R. (2018). Two-step sintering of ceramics. In I. Shishkovsky, Sintering of Functional Materials (pp. 1-21). InTech.

Tan Z., Xing J., Wu J., Chen Q., Zhang W., Zhu J., & Xiao D. (2018). Sintering behavior, phase structure and electric properties of KNNTSBKNZ ceramics with excessive alkali metals. Journal of Materials Science: Materials in Electronics, 29, 5337-5348.

Uchino, K. (2000). Ferroelectric devices (2nd edition). CRC Press.

Wang, X., Wu, J., Xiao, D., Cheng, X., Zheng, T., Zhang, B., Lou, X., & Zhu, J. (2014). Large d33 in (K,Na)(Nb,Ta,Sb)O3-(Bi,Na,K)ZrO3 leadfree ceramics. Journal of Materials Chemistry A, 2, 4122-4126.

Xu, Y. (1991). Ferroelectric materials and their applications. North-Holland.

Zang, G. Z., Wang, J. F., Chen, H. C., Su, W. B., Wang, C. M., Qi, P., Ming, B. Q, Du, J., & Zheng, L-M. (2006). Perovskite (Na0.5K0.5)1-x(LiSb)xNb1-xO3 lead-free piezoceramics. Applied Physics Letters, 88, 1-3.

Zhai, Y., Du, J., Chen, C., Hao., J., Fu, P., Li, W., & Xu, Z. (2019). Temperature stability and electrical properties of Tm2O3 doped KNN based ceramics. Journal of Materials Science: Materials in Electronics, 30, 4716-4725.

Zhang, N., Zheng, T., & Wu, J. (2020). Lead-free (K,Na)NbO3-based materials: Preparation techniques and piezoelectricity. American Chemical Society Omega, 5, 3099-3107.

Zhang, Y., Wang, S., Chen, C., Zhang, N., Wang, A., Zhu, Y., & Cai, F. (2018). Reduced hysteresis of KNNS-BNKZ piezoelectric ceramics through the control of sintering temperature. Ceramics International, 44(11), 12435-12441.

Zhao, J. B., Du, H. L., Qu, S. B., Zhang H. M., & Xu, Z. (2011). Improvement in the piezoelectric temperature stability of (K0.5N0.5)NbO3 ceramics. Chinese Science Bulletin, 56, 2389-2393.




DOI: http://dx.doi.org/10.37569/DalatUniversity.11.1.769(2021)

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