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.

摘要

在本研究中，为了开发使用压电致动器的扬声器低温烧结陶瓷，Pb(Mg _1/2 W _1/2 )O ₃ -Pb(Ni _1/3 Nb _2/3 )O ₃ -Pb(Zr,Ti )O ₃ [PMW-PNN-PZT] 陶瓷掺杂了 PbO、CuO 和 WO ₃作为烧结助剂，并研究了它们的显微结构、介电和压电性能。在添加 0.3 wt% 氧化钨 (=WO _{3) 的}试样中，在 920 °C 下烧结，显示了压电性能的最大值，分别为：介电常数 (ε _r ) 为 2275，压电常数 (d ₃₃) 为 502 pC/N，机电耦合因数 (k _p ) 为 0.644，机械品质因数 (Q _m ) 为 57，适用于设备应用，例如使用低温烧结多层陶瓷的触觉显示致动器。