Effects of calcination conditions on phase and morphology evolution of lead zirconate powders synthesized by solid-state reaction
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...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
2014
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| Online Access: | http://www.scopus.com/inward/record.url?eid=2-s2.0-34547270462&partnerID=40&md5=6d5aa167702331999fe83c5ec9eb80ad http://cmuir.cmu.ac.th/handle/6653943832/5245 |
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| Institution: | Chiang Mai University |
| Language: | English |
| Summary: | 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 ZrO2 were found to form together with the perovskite PbZrO3 phase. However, single-phase PbZrO3 powders 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. |
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