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Published in:
01-09-2014
Low-temperature sintering and piezoelectric properties of Pb(Fe2/3W1/3)O3–added Pb(Zn1/3Nb2/3)O3–Pb(Ni1/3Nb2/3)O3–Pb(Zr, Ti)O3 ceramics
Published in: Journal of Materials Science: Materials in Electronics | Issue 9/2014
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Abstract
Low-temperature sintering of (a–x)Pb(Zr0.48Ti0.52)O3–bPb(Ni1/3Nb2/3) O3–cPb(Zn1/3Nb2/3)O3–xPb(Fe2/3W1/3)O3 (a + b + c + x = 1, 0.06 ≤ x ≤ 0.10) ceramics were prepared through two-step synthesis process using perovskites-structured ferroelectric materials Pb(Fe2/3W1/3)O3 (PFW) as a sintering aid. The effects of PFW content on the densification, microstructure, phase structure, dielectric and piezoelectric properties of the ceramics were investigated. The sintering temperature was reduced from 1,180 °C (without PFW addition) to 940 °C when the material was PFW-doped. PFW-doping increased the sintered density and the average grain size of PFW–PNN–PZN–lead zirconate titanate ceramics. The ceramics sintered at 940 °C for 4 h with x = 0.08 exhibited favorable properties, which were listed as follows: d33 = 496pC/N, εT 33/ε0 = 3,119, tanδ = 2.1 % and Curie temperature = 242 °C. These values indicated that the newly developed composition might be suitable for multilayer piezoelectric devices application.