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Grain boundary structure in TiO2-excess barium titanate

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Abstract

Grain boundary structure was examined in 0.1 mol% TiO2-excess BaTiO3 by high-resolution electron microscopy (HRTEM) and electron energy loss spectroscopy (EELS). Their grain boundaries were mostly faceted with {210} type habit. The faceted boundaries were characterized to be associated with an extra Ti–O2 bond with the rutile-like structure. The grain growth behavior in a small TiO2-excess BaTiO3 is discussed from the viewpoint of grain boundary structure.

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Authors and Affiliations

  1. Department of Materials Science, The University of Tokyo, 7–3-1 Hongo, 113, Bukyo-ku, Tokyo, Japan

    Takahisa Yamamoto, Yuichi Ikuhara, Katsuro Hayashi & Taketo Sakuma

Authors
  1. Takahisa Yamamoto
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  2. Yuichi Ikuhara
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  3. Katsuro Hayashi
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  4. Taketo Sakuma
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Yamamoto, T., Ikuhara, Y., Hayashi, K. et al. Grain boundary structure in TiO2-excess barium titanate. Journal of Materials Research 13, 3449–3452 (1998). https://doi.org/10.1557/JMR.1998.0469

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  • DOI: https://doi.org/10.1557/JMR.1998.0469

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