Physical properties of Pb(Mg_1/2W_1/2)O₃-Pb(Ni_1/3Nb_2/3)O₃-Pb(Zr,Ti)O₃ ceramics doped with tungsten oxide for haptic display actuator

Abstract

In this study, for developing the low temperature sintering ceramics for speaker using piezoelectric actuator, Pb(Mg_1/2W_1/2)O₃-Pb(Ni_1/3Nb_2/3)O₃-Pb(Zr,Ti)O₃ [PMW-PNN-PZT] ceramics doped with PbO, CuO, and WO₃ as sintering aids were manufactured, and their microstructural, dielectric, and piezoelectric properties were investigated. At 0.3 wt% tungsten oxide (=WO₃₎ added specimen sintered at 920 °C, the maximum values of piezoelectric properties were shown, respectively: the dielectric constant (ε_r) of 2275, piezoelectric constant (d₃₃) of 502 pC/N, electromechanical coupling factor (k_p) of 0.644, and mechanical quality factor (Q_m) of 57 were suitable for the device application such as haptic display actuator using low temperature sintering multilayer ceramics.

Keywords:

• Haptic display actuator
• low temperature sintering ceramics
• piezoelectric
• dielectric properties
• electromechanical coupling factor (k_p)
• piezoelectric constant (d₃₃)
• sintering aids

Additional information

Funding

This study was supported by 2020 Semyung University.