Electrical Properties of BaCaTiSnO₃ Lead-Free Ceramics with the Addition of Nano-CeO₂.

Author(s) Zhao, T.X.; Qiu, J.H.; Ma, M.G.; Chen, Z.H.; Li, C.B.; Jia, X.G.
Journal J Nanosci Nanotechnol
Date Published 2019 Sep 01
Abstract

Well dispersed CeO₂ nanoparticles are prepared by azeotropic co-precipitation method. (BaCa)(TiSn)O₃ lead-free piezoelectric ceramics doped with nano-CeO₂ ( =0 mol%, 0.03 mol%, and 0.07 mol%) and micro-CeO₂ ( = 0.03 mol%) are prepared at 1430 °C for 2 h by the conventional solid state sintering method. XRD diffraction indicates that all components have typical perovskite structure. Both doping of nano-CeO₂ and micro-CeO₂ can inhibit grain growth. And the average grain size decreased apparently with the increase of nano-CeO₂ amount. All the samples exhibit typical diffuse phase transition behavior. The optimized electrical performances are obtained at = 0.03 mol% with = 512 pC/N, = 41.5%, and = 14.00 μC/cm².

DOI 10.1166/jnn.2019.16574
ISSN 1533-4880
Citation Zhao T-, Qiu J-, Ma M-, Chen Z-, Li C-, Jia X-. Electrical Properties of BaCaTiSnO₃ Lead-Free Ceramics with the Addition of Nano-CeO₂. J Nanosci Nanotechnol. 2019;19(9):5661-5666.