HRTEM study of [001] low-angle tilt grain boundaries in fiber-textured BaTiO3 thin films

M. Igarashi, Y. Sato, N. Shibata, T. Yamamoto, Y. Ikuhara

    Research output: Contribution to journalArticlepeer-review

    6 Citations (Scopus)

    Abstract

    Low-angle tilt grain boundaries in [001] fiber-textured BaTiO3 thin films were investigated by high-resolution transmission electron microscopy. Extensive observation revealed a very high density of low-angle tilt grain boundaries in the film. The low-angle tilt grain boundaries can be described as periodical arrays of dislocations on {100} and {110} boundary planes. The boundaries with (100) plane on {100} planes are composed of perfect dislocations with Burgers vectors b = a < 100 > (a = lattice constant of BaTiO3: 0.3992 nm), while the boundaries with (110) plane on {110} planes are composed of the dissociated dislocations with Burgers vectors a/2 < 110 >. It was thus found that the difference in the boundary plane leads to different dislocation structures along the low-angle grain boundaries.

    Original languageEnglish
    Pages (from-to)5146-5150
    Number of pages5
    JournalJournal of Materials Science
    Volume41
    Issue number16
    DOIs
    Publication statusPublished - 2006 Aug

    ASJC Scopus subject areas

    • Materials Science(all)
    • Mechanics of Materials
    • Mechanical Engineering

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