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Published online by Cambridge University Press: 10 February 2011
Dissipative regimes may induce athermal processes in addition to the thermally activated single atom addition or subtraction events considered by classical nucleation theory. Displacement cascades or impinging energetic ions could destroy sub-critical precipitates. Similarly, either displacement cascades or energetic knock-on atoms could remove single atoms or groups of atoms from subcritical clusters. Cluster injection is also possible, as in vapor deposition of clusters or in the cores of displacement cascades providing void nuclei.