View in EDS PDF Full Text

Observation of the One-Dimensional Diffusion of Nanometer-Sized Dislocation Loops.

Saved in:
Bibliographic Details
Title: Observation of the One-Dimensional Diffusion of Nanometer-Sized Dislocation Loops.
Authors: Arakawa, K., Ono, K., Isshiki, M., Mimura, K., Uchikoshi, M., Mori, H.
Source: Science (pre-March 2025). 11/9/2007, Vol. 318 Issue 5852, p956-959. 4p. 2 Diagrams, 2 Graphs.
Subjects: Diffusion, Nanostructured materials, Crystals, Electron microscopy, Materials handling, Strains & stresses (Mechanics)
Abstract: Dislocations are ubiquitous linear defects and are responsible for many of the properties of crystalline materials. Studies on the glide process of dislocations in bulk materials have mostly focused on the response of dislocations with macroscopic lengths to external loading or unloading. Using in situ transmission electron microscopy, we show that nanometer-sized loops with a Burgers vector of ½(111) in α-Fe can undergo one-dimensional diffusion even in the absence of stresses that are effective in driving the loops. The loop size dependence of the loop diffusivity obtained is explained by the stochastic thermal fluctuation in the numbers of double kinks. [ABSTRACT FROM AUTHOR]
Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
FullText Links:
  – Type: pdflink
Text:
  Availability: 0
Header DbId: pbh
DbLabel: Psychology and Behavioral Sciences Collection
An: 27664763
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Observation of the One-Dimensional Diffusion of Nanometer-Sized Dislocation Loops.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Arakawa%2C+K%2E%22">Arakawa, K.</searchLink><br /><searchLink fieldCode="AR" term="%22Ono%2C+K%2E%22">Ono, K.</searchLink><br /><searchLink fieldCode="AR" term="%22Isshiki%2C+M%2E%22">Isshiki, M.</searchLink><br /><searchLink fieldCode="AR" term="%22Mimura%2C+K%2E%22">Mimura, K.</searchLink><br /><searchLink fieldCode="AR" term="%22Uchikoshi%2C+M%2E%22">Uchikoshi, M.</searchLink><br /><searchLink fieldCode="AR" term="%22Mori%2C+H%2E%22">Mori, H.</searchLink>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Science+%28pre-March+2025%29%22">Science (pre-March 2025)</searchLink>. 11/9/2007, Vol. 318 Issue 5852, p956-959. 4p. 2 Diagrams, 2 Graphs.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Diffusion%22">Diffusion</searchLink><br /><searchLink fieldCode="DE" term="%22Nanostructured+materials%22">Nanostructured materials</searchLink><br /><searchLink fieldCode="DE" term="%22Crystals%22">Crystals</searchLink><br /><searchLink fieldCode="DE" term="%22Electron+microscopy%22">Electron microscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Materials+handling%22">Materials handling</searchLink><br /><searchLink fieldCode="DE" term="%22Strains+%26+stresses+%28Mechanics%29%22">Strains & stresses (Mechanics)</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Dislocations are ubiquitous linear defects and are responsible for many of the properties of crystalline materials. Studies on the glide process of dislocations in bulk materials have mostly focused on the response of dislocations with macroscopic lengths to external loading or unloading. Using in situ transmission electron microscopy, we show that nanometer-sized loops with a Burgers vector of ½(111) in α-Fe can undergo one-dimensional diffusion even in the absence of stresses that are effective in driving the loops. The loop size dependence of the loop diffusivity obtained is explained by the stochastic thermal fluctuation in the numbers of double kinks. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=pbh&AN=27664763
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1126/science.1145386
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 4
        StartPage: 956
    Subjects:
      – SubjectFull: Diffusion
        Type: general
      – SubjectFull: Nanostructured materials
        Type: general
      – SubjectFull: Crystals
        Type: general
      – SubjectFull: Electron microscopy
        Type: general
      – SubjectFull: Materials handling
        Type: general
      – SubjectFull: Strains & stresses (Mechanics)
        Type: general
    Titles:
      – TitleFull: Observation of the One-Dimensional Diffusion of Nanometer-Sized Dislocation Loops.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Arakawa, K.
      – PersonEntity:
          Name:
            NameFull: Ono, K.
      – PersonEntity:
          Name:
            NameFull: Isshiki, M.
      – PersonEntity:
          Name:
            NameFull: Mimura, K.
      – PersonEntity:
          Name:
            NameFull: Uchikoshi, M.
      – PersonEntity:
          Name:
            NameFull: Mori, H.
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 09
              M: 11
              Text: 11/9/2007
              Type: published
              Y: 2007
          Identifiers:
            – Type: issn-print
              Value: 00368075
          Numbering:
            – Type: volume
              Value: 318
            – Type: issue
              Value: 5852
          Titles:
            – TitleFull: Science (pre-March 2025)
              Type: main
ResultId 1