Grain boundary plane effect on Pr segregation site in ZnO Σ13 [0001] symmetric tilt grain boundaries

Ji Young Roh, Yukio Sato, Yuichi Ikuhara

    研究成果: Article査読

    8 被引用数 (Scopus)

    抄録

    As grain boundary (GB) and GB segregation often have significant impact on various properties of polycrystalline materials, their atomic structures as well as the location of segregated dopant should be intensively investigated. We have thus reported several papers about segregation of Pr (praseodymium) in ZnO (zinc oxide) GBs for case study. In this study, we study the atomic structure of Pr-doped ZnO [0001]/(134¯0) Σ13 symmetric tilt GB, and the results are compared with that for the (257¯0) GB [Sato et al., Phys. Rev. B, 87,140101 (2013)]. Although atomic arrangements of these GBs can be characterized using the same kinds of structural units (SUs), Pr segregation sites relative to the SU vary with GBs. It is suggested that change in strain distribution for different GBs would cause the variation in the segregation sites and Pr would prefer the Zn site of locally highest tension.

    本文言語English
    ページ(範囲)1932-1936
    ページ数5
    ジャーナルJournal of the American Ceramic Society
    98
    6
    DOI
    出版ステータスPublished - 2015 6月 1

    ASJC Scopus subject areas

    • セラミックおよび複合材料
    • 材料化学

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