Journal of Electrical and Electronic Materials

"Li₂CO₃ and Na₂CO₃ (LNCO) piezoelectric properties"

Dielectric and Piezoelectric Characteristics of Pb(Ni_1/3Nb_2/3)O₃-Pb(Zr Ti)O₃ System Ceramics for the Application of Energy Harvesting Device: Kyuho Kim, Juhyun Yoo, Sun A Whang, Su Ho Lee, He Rie Park, Inho Im, Chang Woo Oh; J Electr Electron Mater 2025;38(5):580-585. Published online September 1, 2025; DOI: https://doi.org/10.4313/JEEM.2025.38.5.15

Abstract
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Abstract In this study, to develop composition ceramics for energy harvesting devices, Pb(Ni_1/3Nb_2/3)O₃-Pb(Zr Ti)O₃ system ceramics substituted with Pb(Mg_1/2W_1/2)O₃ were manufactured by conventional mixed oxide method using Li₂CO₃ and Na₂CO₃ (LNCO) as sintering aids. Their microstructure and piezoelectric properties were also investigated. At the specimen sintered at 930℃, high values of piezoelectric properties appeared: the dielectric constant (εr) of 2,522 planar electromechanical coupling factor kp of 0.602, and k₃₁ of 0.385, d31 = 229 [pC/N], g₃₁ = 10.13 [mV.m/N], Qm of 70, respectively. These values were suitable for the application of devices such as energy harvesting devices and ultrasonic devices.