Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/4792
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Title: Heterogeneous void swelling near grain boundaries in irradiated materials
Authors: Dudarev, SL
Semenov, AA
Woo, CH 
Issue Date: 1-Mar-2003
Source: Physical review. B, Condensed matter and materials physics, 1 Mar. 2003, v. 67, no. 9, 094103, p. 1-9
Abstract: We found that by assuming that the density of dislocations in an irradiated material varies as a function of the distance to grain boundaries and that mobile interstitial defect clusters perform three-dimensional diffusional motion it is possible to achieve significantly better agreement with experimental observations of profiles of heterogeneous void swelling than in the model where defects diffuse purely one-dimensionally. This approach explains the origin of several distinct features characterising the effect of heterogeneous void swelling, including the variation of the shape of swelling profiles as a function of irradiation dose, the formation of peaks of swelling and void denuded zones, and the occurrence of anomalously large voids in the regions adjacent to grain boundaries.
Keywords: Irradiation
Molecular dynamics
Radiation dose
Publisher: American Physical Society
Journal: Physical review. B, Condensed matter and materials physics 
ISSN: 1098-0121
EISSN: 1550-235X
DOI: 10.1103/PhysRevB.67.094103
Rights: Physical Review B © 2003 The American Physical Society. The Journal's web site is located at http://pre.aps.org/
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