The role of thermal spike compactness in radiation-induced disordering and Frenkel pair production in Ni3Al Academic Article

abstract

• We show that the shape of the kinetic energy distribution in radiation-induced thermal spikes may be described using a dimensionless number, proportional to (volume) 2/3/(surface area), known as compactness. The disorder produced in thermal spikes in Ni 3Al increases with compactness because the thermal spike cooling rate, which determines the time available for thermal disordering, decreases with compactness. On the other hand, Frenkel pair production is inversely correlated to compactness because longer thermal spike lifetimes enhance vacancy-interstitial recombination. 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

authors

• Demkowicz, Michal

published proceedings

• Scripta Materialia

author list (cited authors)

• Skirlo, S. A., & Demkowicz, M. J.

citation count

• 14

complete list of authors

• Skirlo, SA||Demkowicz, MJ

publication date

• October 2012

publisher

• Elsevier  Publisher

published in

• Scripta Materialia  Journal

Digital Object Identifier (DOI)

• 10.1016/j.scriptamat.2012.06.029

start page

• 724

end page

• 727

volume

• 67

issue

• 7-8

URL

• http%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.scriptamat.2012.06.029