Grain boundary structure and properties in oxide bicrystals

Hidehiro Yoshida, Naoya Shibata, Yuichi Ikuhara

    研究成果: Conference contribution

    抜粋

    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.

    元の言語English
    ホスト出版物のタイトルMaterials Science and Technology 2005 - Proceedings of the Conference
    ページ3-10
    ページ数8
    出版物ステータスPublished - 2005 12 1
    イベントMaterials Science and Technology 2005 Conference - Pittsburgh, PA, United States
    継続期間: 2005 9 252005 9 28

    出版物シリーズ

    名前Materials Science and Technology
    3
    ISSN(印刷物)1546-2498

    Other

    OtherMaterials Science and Technology 2005 Conference
    United States
    Pittsburgh, PA
    期間05/9/2505/9/28

    ASJC Scopus subject areas

    • Engineering(all)

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  • これを引用

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