Dielectric and piezoelectric properties of (Na_0.52K_0.443Li_0.037)(Nb_0.883Sb_0.08Ta_0.037)O₃ ceramics substituted with (Bi_0.5Na_0.5)_0.9(Sr)_0.1ZrO₃

Abstract

In this paper, in order to develop the composition ceramics for piezoelectric actuator, (1-x)(Na_0.52K_0.443Li_0.037)(Nb_0.883Sb_0.08Ta_0.037)O₃ - x(Bi_0.5Na_0.5)_0.9(Sr)_0.1ZrO₃ ceramics were synthesized by the conventional solid state method and their piezoelectric and dielectric properties were systematically investigated. All specimens showed a typical pure perovskite structure and no secondary phase was found according to the (Bi_0.5Na_0.5)_0.9(Sr)_0.1ZrO₃ substitution. When x = 0.03, the excellent physical properties of d₃₃ = 256pC/N ε_r = 1753, k_p = 0.411, Qm = 58 and high Tc of 285 °C were obtained for piezoelectric actuator.

Keywords:

• (Bi0.5Na0.5)0.9(Sr)0.1ZrO3
• piezoelectric actuator
• electromechanical coupling factor
• mechanical quality factor

Additional information

Funding

This paper was supported by the 2018 Semyung University Fund.