Effect of Pre-Calcined Method on Dielectric, Ferroelectric, and Piezoelectric Properties of Lead-Free Piezoelectric Lix(K0.5Na0.5)1-x(Nb0.8Ta0.2)O3 Ceramics

Min Chang Kuan; Kai Huang Chen; Chien Min Cheng; Chun Cheng Lin; Shih Fang Chen

doi:10.4028/www.scientific.net/KEM.512-515.1218

Paper Titles

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 512-515Effect of Pre-Calcined Method on Dielectric,...

Effect of Pre-Calcined Method on Dielectric, Ferroelectric, and Piezoelectric Properties of Lead-Free Piezoelectric Li_x(K_0.5Na_0.5)_1-x(Nb_0.8Ta_0.2)O₃ Ceramics

Abstract:

The structure and electrical characteristics of the lead-free Li_x(K_0.5Na_0.5)_1-x(Nb_0.8Ta_0.2)O₃ (x=0~0.05) piezoelectric ceramics for the conventional solid-state reaction method and the B-side pre-calcined method were achieved and compared. For the B-side pre-calcined method, the lead-free ceramic material exhibited the excellent electrical and piezoelectric properties. The relative dielectric constant (ε_r) and loss (tan δ) of the Li_x(K_0.5Na_0.5)_1-x(Nb_0.8Ta_0.2)O₃ for x=0.03 using the B-side pre-calcined method were 1223 and 0.021, respectively. In addition, the electromechanical coupling factors (k_p) and Curie temperature (T_c) was 48.5 % and 315°C. Finally, the electrical properties of the lead-free Li_x(K_0.5Na_0.5)_1-x(Nb_0.8Ta_0.2)O₃(x=0~0.05) homogeneity ceramics improved by the B-side pre-calcined method were also investigated and discussed.

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Key Engineering Materials (Volumes 512-515)

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1218-1221

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.512-515.1218

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Online since:

June 2012

Authors:

Min Chang Kuan, Kai Huang Chen, Chien Min Cheng, Chun Cheng Lin, Shih Fang Chen

Keywords:

Electromechanical Coupling Factors (k_p), Ferroelectric Properties, KNN-Based, Lead-Free

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References

[1] V. V. Lemanov, Barium titanate-based solid solutions, Ferroelectrics 354 (2007) 69.

DOI: 10.1080/00150190701454545

Google Scholar

[2] A. Sanson, and R.W. Whatmore, Properties of Bi4Ti3O12-(Na1/2Bi1/2)TiO3 piezoelectric ceramics, Jpn. J. Appl. Phys. 41 (2002) 7127.

Google Scholar

[3] L. Wu, D. Q. Xiao, D. M. Lin, J. G. Zhu, and P. Yu, Synthesis and properties of [Bi0.5(Na1-xAgx)0.5]1-yBayTiO3 piezoelectric ceramics, Jpn. J. Appl. Phys. 44 (2005) 8515.

Google Scholar

[4] L. Egerton, and D. M. Dillon, Piezoelectric and dielectric properties of ceramics in the system potassium-sodium niobate, J. Am. Ceram. Soc. 42 (1959) 438.

DOI: 10.1111/j.1151-2916.1959.tb12971.x

Google Scholar

[5] Y. Zhen, and J. F. Li, Normal sintering of (K,Na)NbO3-based ceramics: Influence of sintering temperature on densification, microstructure, and electrical properties, J. Am. Ceram. Soc. 89 (2006) 3669.

DOI: 10.1111/j.1551-2916.2006.01313.x

Google Scholar