Low-Temperature Preparation of (Ba,Sr)TiO3 Perovskite Phase by Sol-Gel Method |
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| Authors: | Shiibashi Hiroyuki Matsuda Hirofumi Kuwabara Makoto |
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| Affiliation: | (1) Department of Materials Science, University of Tokyo, Tokyo, 113-8656, Japan |
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| Abstract: | We have investigated on the synthesis of Ba1 – xSrxTiO3 (BST, x = 0.0–1.0) solid solution at low temperature by a sol-gel method using precursor solutions of Ba(OC2H5)2, Sr(OC2H5)2, and Ti(OCH(CH3)2)4 dissolved in 2-methoxyethanol. Crystalline BST solid solution monolithic gels were obtained as dried at 90°C. Crystalline fraction of BST gels increased with increasing concentration of the precursor solution and increasing amount of the hydrolysis water used. Ba0.4Sr0.6TiO3 (x = 0.6) gels from a precursor solution of 0.5 mol/l with hydrolysis water of H2O/Ti = 50 crystallized during aging at 30°C. |
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| Keywords: | sol-gel processing using metal alkoxides BST monolithic gel crystallization at low temperature |
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