Abstract
In general, commercial PZT piezoceramics are sintered at temperature above 1200°C. Here, one low-temperature sintering technology was developed for PZT piezoceramics by adding perovskite-type ferroelectrics with low sintering temperature, alternative to adding non-piezoelectric low-melting glass or eutectic oxides. Through solid state reaction mechanism, very densified piezoceramics of (Pb0.95Sr0.05)(Zr0.53Ti0.47)O3 with 0.6PbTiO3–0.3Bi(Zn0.5Ti0.5)O3–0.1BiFeO3 as sintering additive were obtained below 1050°C. The phase of (Pb,Bi,Sr)(Zr,Ti,Zn,Fe)O3 solid solution piezoceramics was demonstrated to be single-phased perovskite structure and the measurements of dielectric, ferroelectric and piezoelectric properties showed good piezoelectric performance equivalent to PZT-8.
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