Journal
CERAMICS INTERNATIONAL
Volume 39, Issue 6, Pages 7127-7134Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2013.02.055
Keywords
Synthesis; Sol-gel-hydrothermal; BaTiO3; Powders
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Funding
- National Science Foundation of China [NSFC 51172218]
- Qingdao Science and Technology Development Project [12-1-4-1-(2)-jch]
- Promotive Research Fund for Young and Middle-aged Scientists of Shan Dong Province [BS2010CL049]
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BaTiO3 powders were successfully prepared by a novel sol-gel-hydrothermal method using tetrabutyl titanate and barium acetate as the main raw materials. The phase composition and microstructure of the powders were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The results indicate that BaTiO3 powders with well-developed crystallinity and good morphology could be synthesized at 120 degrees C (12 h) comparatively lower than the normal sol-gel route. The crystallinity and morphology were less affected by further increasing the reaction temperature and time. However, the KOH concentration had a great impact on the crystallinity and particles size of the powders that were all cubic phase with perovskite structure. (c) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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