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Original Articles

Radiation damage near grain boundaries

, , &
Pages 3599-3607 | Received 30 Jun 2002, Accepted 20 Feb 2003, Published online: 12 May 2010
 

Abstract

Large-scale molecular dynamics of cascade production of the primary damage state are performed in nanocrystalline nickel with an average grain diameter of 12 nm and primary knock-on atom kinetic energies ranging from 5 to 30 keV. The role of the grain boundary during the cascade production of irradiated NC Ni is discussed in terms of grain-boundary structure. It is shown that regions of misfit in the grain boundaries can absorb self-interstitials and that stacking-fault tetrahedra are formed in the neighbourhood of the grain boundary.

Acknowledgements

M. S. acknowledges the financial support of the Bundesamt fuer Bildung und Wissenschaft (grant 98.0098) and M. V. acknowledges the financial support of the Swiss National Science Foundation (grant 2000-061837.00).

Notes

† Email: [email protected].

Additional information

Notes on contributors

H. Van SwygenhovenFootnote

† Email: [email protected].

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