Mechanisms of radiation-induced viscous flow: Role of point defects

S. G. Mayr*, Y. Ashkenazy, K. Albe, R. S. Averback

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

88 Scopus citations


The molecular dynamics (MD) simulations illustrate that radiation-induced viscous flow results primarily by the creation of point defects, which act as flow defects. It was found that the calculations were in excellent agreement with the experimental results. Thermal spike models of radiation-induced fluidity (RIF) were carefully analyzed by determining the number of atoms in the liquid and were shown to be at most as efficient as point defects, and then in only some cases.

Original languageAmerican English
Article number055505
Pages (from-to)055505/1-055505/4
JournalPhysical Review Letters
Issue number5
StatePublished - 7 Feb 2003
Externally publishedYes

Bibliographical note

Funding Information:
We are grateful for grants of computer time from NCSA and NERSC. The research was supported by the U.S. Department of Energy, Division of Materials Science, under Grant No. DEFG02-91-ER45439, and through the University of California under subcontract B341494.


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