Fabrication and performance of PNN-PZT piezoelectric ceramics obtained by low-temperature sintering

Abstract

The Pb(Ni1/3Nb2/3)O3-Pb(ZrxTi1−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.

Low‐temperature sintering Sm‐doped PMN–PZ–PT multilayer ceramic actuator with high strain and temperature stability

“…These methods include addition of glass phases, utilization of finely sized raw materials, improvement in sintering equipment design, and the introduction of low‐melting point metal oxides 17,18 . Among these strategies, the addition of sintering aids stands out as an effective way to reduce the sintering temperature, attributed to the formation of low‐melting point phases at grain boundaries, which accelerate the atomic migration and grain growth during the solid‐state reaction process 19 . For lead‐based piezoelectric ceramics, low temperature sintering has been achieved at temperatures below 1050°C by adding the low‐melting point sintering aid, such as Li 2 CO 3 , 20– 22 CuO, 23,24 LiBiO 2 , and 25– 27 PbO 21,28 Kim et al 29 .…”

Achieving High Piezoelectricity and Excellent Temperature Stability in Pb(Zr,Ti)O3-Based Ceramics via Low-Temperature Sintering

“…7 Another one is adding tiny amounts of efficacious sintering aids, which is an economic and efficient approach to reduce the T S . 8 Sintering aids are conducive to forming lowmelting point glass phases that accelerate mass transportation, consequently contributing to the grain growth. Previously, researchers have developed several sintering aids to lower the T S for lead-based piezoceramics, such as V 2 O 5 , 9 CuO, 10 Li 2 CO 3 , 11 PbO-B 2 O 3 , 12 ZnO-Li 2 O, 13 etc.…”

“…One is the powder injection molding technique due to its fine particle size . Another one is adding tiny amounts of efficacious sintering aids, which is an economic and efficient approach to reduce the T S . Sintering aids are conducive to forming low-melting point glass phases that accelerate mass transportation, consequently contributing to the grain growth.…”

Design and Preparation of Self-Oscillating Actuators Using Piezoelectric Ceramics with High Coupling Factors and Mechanical Quality Factors

“…To develop a material that meets the application requirements, relaxor ferroelectrics, an ABO 3 type complex perovskite compound, are dissolved in the basic composition of PZT piezoelectric ceramics, or the piezoelectric property values are modified via various means by using a small amount of additives; research on this was continuously being conducted [9][10][11][12][13][14].…”