Abstract
Abstract The Pb(Ni1/3Nb2/3)O3-Pb(Zr x Ti1−x )O3 (PNN-PZT) piezoelectric ceramics with CuO and LiBiO2 doping were successfully fabricated by the low-temperature solid-state reaction to effectively restrain the PbO volatilization. The microstructure and electrical properties of the PNN-PZT ceramics were characterized. The experimental results reveal that the PNN-PZT ceramics are composed of a pure perovskite structure in which the rhombohedral and tetragonal phases coexist. Meanwhile, the good electric properties, including low dielectric loss, outstanding diffusion phase transition and palpable dielectric relaxation, are exhibited in PNN-PZT ceramics with 0.2 wt.% CuO and 1 wt.% LiBiO2 addition. This piezoceramic composition possibly provides a reference for the application of multi-layer piezoelectric actuators.
Highlights
With the rapid development of the electronic information technology, the electronic components widely applied in various devices, such as transformers, reproducers and fil-The research on the low-temperature sintering of piezoelectric ceramics has been developed for decades [12]
The glass phase formed in the grain boundary accelerates the rate of atomic migration, which is contribute to fast growth of grains
Introduction of CuO and Bi2O3 into the PNNPZT ceramics as the sintering aids can reduce effectively the sintering temperature [16,17,18]. In this notion, a series of PNN-PZT ceramics doped by various amounts of CuO and LiBiO2 as sintering aids to achieve a novel electric properties via low-temperature sintering
Summary
With the rapid development of the electronic information technology, the electronic components widely applied in various devices, such as transformers, reproducers and fil-. The ceramic powders prepared by sol-gel methods or hydrothermal process possess superfine particle sizes and high surface energy, which can reduce the sintering temperature [13]. The another one is adding tiny amounts of efficacious sintering aids, such as V2O5, SiO2, etc, which is an economic and efficient approach to reducing the sintering temperature. Introduction of CuO and Bi2O3 into the PNNPZT ceramics as the sintering aids can reduce effectively the sintering temperature [16,17,18] In this notion, a series of PNN-PZT ceramics doped by various amounts of CuO and LiBiO2 as sintering aids to achieve a novel electric properties via low-temperature sintering. The related research results will provide a potential candidate for the multi-layer piezoelectric actuators
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