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Heating effect of BaTiO3 in microwave field and microstructure of BaTiO3

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Abstract

Microwave equipment at 2 450 MHz was employed to prepare BaTiO3. The heating effect of the system in the microwave field, which was influenced by several factors including dielectric properties of synthesis system and thermal insulate structures, was discussed in detail. The heating rates of the synthesis system were mainly determined by BaCO3 and TiO2 at low temperature and by TiO2 and BaTiO3 at high temperature. The results show that the heating effects in microwave field are greatly different from those in conventional furnace. The reaction of BaCO3 and TiO2 only lasts for 3 min at 1 100°C, and the fine, narrow-distributed and well-crystallized powders were prepared.

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Authors and Affiliations

  1. Advanced Materials Research Institute, Wuhan University of Technology, 430070, Wuhan, China

    Yongwei Li, Hanxing Liu, Hanlin Zhang & Shixi Ouyang

Authors
  1. Yongwei Li
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  2. Hanxing Liu
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  3. Hanlin Zhang
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  4. Shixi Ouyang
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Project supported by the National Natural Science Foundation of China.

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Li, Y., Liu, H., Zhang, H. et al. Heating effect of BaTiO3 in microwave field and microstructure of BaTiO3 . Sci. China Ser. A-Math. 40, 779–784 (1997). https://doi.org/10.1007/BF02878703

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  • DOI: https://doi.org/10.1007/BF02878703

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