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Stable Storage of Helium in Nanoscale Platelets at Semicoherent Interfaces

Author(s)
Kashinath, Abishek; Demkowicz, Michael J.; Misra, Amit
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Abstract
He implanted into metals precipitates into nanoscale bubbles that may later grow into voids, degrading the properties of engineering alloys. Using multiscale modeling, we show that a different class of He precipitates may form at semicoherent interfaces: nanoscale platelets. These platelets grow by wetting high-energy interface regions, remain stable under irradiation, and reduce He-induced swelling. Stable storage of He at interfaces may impart unprecedented He resistance to future structural materials.
Date issued
2013-02
URI
http://hdl.handle.net/1721.1/78555
Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering; Massachusetts Institute of Technology. School of Engineering
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Kashinath, A., A. Misra, and M. J. Demkowicz. “Stable Storage of Helium in Nanoscale Platelets at Semicoherent Interfaces.” Physical Review Letters 110.8 (2013). © 2013 American Physical Society
Version: Final published version
ISSN
0031-9007
1079-7114

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