Abstract
A (100-x)Pb(Yb1/2Nb1/2)O3-xPbTiO3 [PYN-PTx] solid solution system with 49.0 ≤ × ≤ 51.0 was prepared using a conventional ceramics process and sintered at low temperature. When excess PbO was added into the PYN-PTx system, all samples were sintered at temperatures as low as 800°C with good dielectric and piezoelectric properties. It is suggested that a liquid phase with excess PbO was formed during the sintering and improved the densification of PYN-PTx ceramics at low temperatures. For the PYN-PTx binary system, it was found that the temperature dependence of the relative permittivity follows a Curie–Weiss Law above the deviation temperature (TD) at high temperatures. Good piezoelectric properties of d 33 = 510 pC/N, ε r = 2800 at RT, k p = 0.57, and k t = 0.42 with Tc = 373°C were obtained for PYN-PT49.5 ceramics sintered at 800°C for 8 h.
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Lim, J.B., Zhang, S. & Shrout, T.R. Relaxor behavior of piezoelectric Pb(Yb1/2Nb1/2)O3-PbTiO3 ceramics sintered at low temperature. J Electroceram 26, 68–73 (2011). https://doi.org/10.1007/s10832-011-9629-8
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DOI: https://doi.org/10.1007/s10832-011-9629-8