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

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The structure and electrical characteristics of the lead-free Lix(K0.5Na0.5)1-x(Nb0.8Ta0.2)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 (εr) and loss (tan δ) of the Lix(K0.5Na0.5)1-x(Nb0.8Ta0.2)O3 for x=0.03 using the B-side pre-calcined method were 1223 and 0.021, respectively. In addition, the electromechanical coupling factors (kp) and Curie temperature (Tc) was 48.5 % and 315°C. Finally, the electrical properties of the lead-free Lix(K0.5Na0.5)1-x(Nb0.8Ta0.2)O3(x=0~0.05) homogeneity ceramics improved by the B-side pre-calcined method were also investigated and discussed.

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Periodical:

Key Engineering Materials (Volumes 512-515)

Edited by:

Wei Pan and Jianghong Gong

Pages:

1218-1221

Citation:

M. C. Kuan et al., "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", Key Engineering Materials, Vols. 512-515, pp. 1218-1221, 2012

Online since:

June 2012

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$38.00

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