A study of electron irradiation damage in Zirconium using a high voltage electron microscope
Electron irradiation damage at 1 MeV has been studied in zircomium and Zircaloy-2, in the temperature range 315 to 725 K, using a high voltage microscope. At low doses, the damage takes the form of perfect prismatic dislocation loops of interstitial character, with Burgers vectors of the type 1 3 a&...
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Published in | Journal of nuclear materials Vol. 96; no. 3; pp. 213 - 226 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
Elsevier B.V
01.01.1981
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Online Access | Get full text |
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Summary: | Electron irradiation damage at 1 MeV has been studied in zircomium and Zircaloy-2, in the temperature range 315 to 725 K, using a high voltage microscope. At low doses, the damage takes the form of perfect prismatic dislocation loops of interstitial character, with Burgers vectors of the type
1
3
a<11
2
̄
0>
. The loops form in bands parallel to the trace of the basal plane, by a process of preferred nucleation. A significant proportion of the loops appear to nucleate on {112̄0} planes in a pure edge configuration and reorient during growth to reduce their energy. Continued irradiation causes loop growth and interactions, resulting in the formation of a dislocation network. The results are compared with data from neutron- and ion-irradiation studies. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0022-3115 1873-4820 |
DOI: | 10.1016/0022-3115(81)90565-1 |