Grain boundary structure and properties in oxide bicrystals

Hidehiro Yoshida, Naoya Shibata, Yuichi Ikuhara

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Misorientation dependence of grain boundary energy and grain boundary sliding at high temperature were examined in cubic zirconia bicrystals with [110] symmetric tilt boundaries, which were fabricated by diffusion bonding method from two cubic zirconia single crystals. High-resolution transmission electron microscopy observation revealed that the grain boundary in cubic zirconia bicrystals was clean and atomically sharp without any void or grain boundary amorphous layer. Grain boundary energy of the tilt boundaries was estimated from the dihedral angles on thermal grooved surface measured with atomic force microscope techniques. The misorientation dependence of the grain boundary energy in cubic zirconia bicrystals shows similar tendency to that of f.c.c. metal such as aluminum and copper. Grain boundary sliding associated with intragranular dislocation slip in cubic zirconia bicrystals was observed for all specimens. The observed grain boundary sliding and migration can be explained based on a dislocation mechanism for sliding which is based on the movement of lattice dislocations along the grain boundary by a combination of climb and glide.

    Original languageEnglish
    Title of host publicationMaterials Science and Technology 2005 - Proceedings of the Conference
    Pages3-10
    Number of pages8
    Publication statusPublished - 2005 Dec 1
    EventMaterials Science and Technology 2005 Conference - Pittsburgh, PA, United States
    Duration: 2005 Sep 252005 Sep 28

    Publication series

    NameMaterials Science and Technology
    Volume3
    ISSN (Print)1546-2498

    Other

    OtherMaterials Science and Technology 2005 Conference
    CountryUnited States
    CityPittsburgh, PA
    Period05/9/2505/9/28

    Keywords

    • Bicrystals
    • Cubic zirconia
    • Grain boudnary sliding
    • Grain boundary energy

    ASJC Scopus subject areas

    • Engineering(all)

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  • Cite this

    Yoshida, H., Shibata, N., & Ikuhara, Y. (2005). Grain boundary structure and properties in oxide bicrystals. In Materials Science and Technology 2005 - Proceedings of the Conference (pp. 3-10). (Materials Science and Technology; Vol. 3).