Dislocation structure analysis of low angle tilt grain boundaries in alumina by elastic theory

A. Nakamura, E. Tochigi, N. Shibata, T. Yamamoto, Y. Ikuhara

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Structure and configuration of boundary dislocations on the low angle tilt grain boundaries in alumina were considered based on the ideas that the boundary is composed of regularly arrayed edge dislocations and that the dislocations could dissociate into partial dislocations as well as glide dislocations in bulk. Moreover, the structure of the dissociated boundary dislocations were evaluated by the calculations based on an elastic theory. The calculations indicated that the largeness of the stacking fault region between partial dislocations formed by the dissociation will decrease with increasing tilt angles. It can be said that the idea and calculations used here will be powerful in considering the dislocation structure of low angle tilt grain boundaries that are not or are difficult to be identified.

Original languageEnglish
Title of host publicationSelected, peer reviewed papers from The Sixth Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6
PublisherTrans Tech Publications Ltd
Pages2465-2468
Number of pages4
EditionPART 3
ISBN (Print)0878494626, 9780878494620
DOIs
Publication statusPublished - 2007 Jan 1
Externally publishedYes
Event6th Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6 - Jeju, Korea, Republic of
Duration: 2007 Nov 52007 Nov 9

Publication series

NameMaterials Science Forum
NumberPART 3
Volume561-565
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Other

Other6th Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6
CountryKorea, Republic of
CityJeju
Period07/11/507/11/9

Keywords

  • Alumina
  • Dislocations
  • Low angle boundaries
  • Stacking fault

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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  • Cite this

    Nakamura, A., Tochigi, E., Shibata, N., Yamamoto, T., & Ikuhara, Y. (2007). Dislocation structure analysis of low angle tilt grain boundaries in alumina by elastic theory. In Selected, peer reviewed papers from The Sixth Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6 (PART 3 ed., pp. 2465-2468). (Materials Science Forum; Vol. 561-565, No. PART 3). Trans Tech Publications Ltd. https://doi.org/10.4028/0-87849-462-6.2465