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|Title:||Effects of calcination conditions on phase and morphology evolution of lead zirconate powders synthesized by solid-state reaction|
|Abstract:||Lead zirconate (PbZrO3) powder has been synthesized by a solid-state reaction via a rapid vibro-milling technique. The effects of calcination temperature, dwell time and heating/cooling rates on phase formation, morphology, particle size and chemical composition of the powders have been investigated by TG-DTA, XRD, SEM and EDX techniques. The results indicated that at calcination temperature lower than 800 °C minor phases of unreacted PbO and ZrO2were found to form together with the perovskite PbZrO3phase. However, single-phase PbZrO3powders were successfully obtained at calcination conditions of 800 °C for 3 h or 850 °C for 1 h, with heating/cooling rates of 20 °C/min. Higher temperatures and longer dwell times clearly favored the particle growth and formation of large and hard agglomerates. © Springer Science+Business Media, LLC 2007.|
|Appears in Collections:||CMUL: Journal Articles|
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