IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v13y2022i1d10.1038_s41467-022-29162-2.html
   My bibliography  Save this article

Direct imaging of the disconnection climb mediated point defects absorption by a grain boundary

Author

Listed:
  • Jiake Wei

    (Institute of Engineering Innovation, The University of Tokyo
    Kyoto University)

  • Bin Feng

    (Institute of Engineering Innovation, The University of Tokyo)

  • Eita Tochigi

    (The University of Tokyo
    PRESTO, Japan Science and Technology Agency)

  • Naoya Shibata

    (Institute of Engineering Innovation, The University of Tokyo
    Nanostructures Research Laboratory, Japan Fine Ceramics Center)

  • Yuichi Ikuhara

    (Institute of Engineering Innovation, The University of Tokyo
    Kyoto University
    Nanostructures Research Laboratory, Japan Fine Ceramics Center)

Abstract

Grain boundaries (GBs) are considered as the effective sinks for point defects, which improve the radiation resistance of materials. However, the fundamental mechanisms of how the GBs absorb and annihilate point defects under irradiation are still not well understood at atomic scale. With the aid of the atomic resolution scanning transmission electron microscope, we experimentally investigate the atomistic mechanism of point defects absorption by a ∑31 GB in α-Al2O3 under high energy electron beam irradiation. It is shown that a disconnection pair is formed, during which all the Al atomic columns are tracked. We demonstrate that the formation of the disconnection pair is proceeded with disappearing of atomic columns in the GB core, which suggests that the GB absorbs vacancies. Such point defect absorption is attributed to the nucleation and climb motion of disconnections. These experimental results provide an atomistic understanding of how GBs improve the radiation resistance of materials.

Suggested Citation

  • Jiake Wei & Bin Feng & Eita Tochigi & Naoya Shibata & Yuichi Ikuhara, 2022. "Direct imaging of the disconnection climb mediated point defects absorption by a grain boundary," Nature Communications, Nature, vol. 13(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-29162-2
    DOI: 10.1038/s41467-022-29162-2
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-022-29162-2
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-022-29162-2?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    References listed on IDEAS

    as
    1. K. Y. Yu & D. Bufford & C. Sun & Y. Liu & H. Wang & M. A. Kirk & M. Li & X. Zhang, 2013. "Removal of stacking-fault tetrahedra by twin boundaries in nanotwinned metals," Nature Communications, Nature, vol. 4(1), pages 1-7, June.
    2. Y. Chen & K Y. Yu & Y. Liu & S. Shao & H. Wang & M. A. Kirk & J. Wang & X. Zhang, 2015. "Damage-tolerant nanotwinned metals with nanovoids under radiation environments," Nature Communications, Nature, vol. 6(1), pages 1-8, November.
    3. A. Vattré & T. Jourdan & H. Ding & M.-C. Marinica & M. J. Demkowicz, 2016. "Non-random walk diffusion enhances the sink strength of semicoherent interfaces," Nature Communications, Nature, vol. 7(1), pages 1-10, April.
    4. Timofey Frolov & David L. Olmsted & Mark Asta & Yuri Mishin, 2013. "Structural phase transformations in metallic grain boundaries," Nature Communications, Nature, vol. 4(1), pages 1-7, October.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Takehito Seki & Toshihiro Futazuka & Nobusato Morishige & Ryo Matsubara & Yuichi Ikuhara & Naoya Shibata, 2023. "Incommensurate grain-boundary atomic structure," Nature Communications, Nature, vol. 14(1), pages 1-7, December.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Enze Chen & Tae Wook Heo & Brandon C. Wood & Mark Asta & Timofey Frolov, 2024. "Grand canonically optimized grain boundary phases in hexagonal close-packed titanium," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    2. Xuyang Zhou & Ali Ahmadian & Baptiste Gault & Colin Ophus & Christian H. Liebscher & Gerhard Dehm & Dierk Raabe, 2023. "Atomic motifs govern the decoration of grain boundaries by interstitial solutes," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    3. Lena Langenohl & Tobias Brink & Rodrigo Freitas & Timofey Frolov & Gerhard Dehm & Christian H. Liebscher, 2022. "Dual phase patterning during a congruent grain boundary phase transition in elemental copper," Nature Communications, Nature, vol. 13(1), pages 1-11, December.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-29162-2. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.