Synthesis of zirconium-rich PZT ceramics by hydroxide coprecipitation under hot-press
2002
Abstract A wet procedure to prepare stoichiometric and homogeneous Zr-rich PZT powders is described. The hydroxide precursor was prepared by coprecipitation from a mixed nitrate solution containing Pb 2+ , Zr 4+ , TiO 2+ ions at pH 9. The precursor pellets were heated at 550 °C for 0.5 h and reaction sintered at 1130 °C for 2 h under hot press, then a density of 98% theoretical density was obtained, as well as the samples exhibited good ferroelectric properties.
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