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Increased mobility of an α-Al₂O₃ grain boundary by electron-beam irradiationIncreased mobility of an alpha-Al2O3 grain boundary by electron-beam irradiation
- Other Titles
- Increased mobility of an alpha-Al2O3 grain boundary by electron-beam irradiation
- Issue Date
- Feb-2018
- Publisher
- SPRINGER
- Citation
- JOURNAL OF MATERIALS SCIENCE, v.53, no.4, pp.2383 - 2388
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF MATERIALS SCIENCE
- Volume
- 53
- Number
- 4
- Start Page
- 2383
- End Page
- 2388
- ISSN
- 0022-2461
- Abstract
- When subjected to electron-beam irradiation in a transmission electron microscope, the grain boundary in an alpha-Al2O3 bicrystal is observed to migrate even at room temperature. The bicrystal is composed of grains with the same normal direction, and thus the difference in strain energy or surface energy between the two grains cannot explain the observed migration. We attribute this phenomenon to an increase in grain boundary mobility by electron-beam irradiation, especially by radiolysis effects.
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Related Researcher
- Lee, Seung Yong
- COLLEGE OF ENGINEERING (SCHOOL OF MATERIALS SCIENCE AND ENGINEERING)