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Synthesis of nanosized (Pb,Sr)TiO3 perovskite powders by coprecipitation processing |
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| Authors: | Fan Zhang Tomoaki Karaki Masatoshi Adachi |
| Affiliation: | a Department of Electronics and Informatics, Faculty of Engineering, Toyama Prefectural University, Kosugi-machi, Toyama 939-0398, Japan b School of Materials Science and Engineering, Shenyang Insititute of Chemical Technology, Shenyang 110142, China |
| Abstract: | Nanosized perovskite lead strontium titanate (PbxSr1−x)TiO3 (PST) powders were successfully prepared by a simple coprecipitation method. Lead-strontium titanyl oxalate (PSTO) precursor was first synthesized at room temperature, and the precursor was then calcined at 600 °C for 1 h to produce the single phase perovskite PST powders. Characterization studies were carried out on the as-dried precursor and the calcined PST powders by various techniques. The results showed a strong dependence of the chemical composition of final PST powders on pH value in the coprecipitation reaction. PST powders with desired composition could be synthesized by adding 25 mol% excess Sr. PST particles were found to be spherical in nature with an average size of 10 nm. |
| Keywords: | Coprecipitation Nanosized powder Lead strontium titanate |
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