Burgers vector of crack tip dislocations in magnesium oxide crystals

Kenji Higashida, Syunji Okazaki, Tatsuya Morikawa, Ryuta Onodera

    研究成果: Contribution to journalArticle査読

    14 被引用数 (Scopus)

    抄録

    Crack tip dislocations in MgO thin crystals have been investigated using a high voltage electron microscope (HVEM). Particular emphasis is laid on determining the sign of the Burgers vectors of those dislocations, because it is essentially important for understanding the fracture toughness of materials. For this determination, image simulation for a dislocation inclined to the foil surface has been performed, and characteristics of image contrast are discussed. Crack tip shielding due to dislocations is also discussed briefly.

    本文言語英語
    ページ(範囲)967-974
    ページ数8
    ジャーナルMaterials Transactions, JIM
    39
    9
    DOI
    出版ステータス出版済み - 9 1998

    All Science Journal Classification (ASJC) codes

    • 工学(全般)

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