The role of thermal spike compactness in radiation-induced disordering and Frenkel pair production in Ni[subscript 3]Al
Name
SMM-12-1044R1-1-show.pdf
Size
487.14 KB
Format
Adobe PDF
Checksum (MD5)
7f5c1c450092367b059e0314527cec2c
Author(s)
Skirlo, Scott A.
Demkowicz, Michael J.
Date Issued
June 2012
Journal
Scripta Materialia
Publisher
Elsevier
Citation
Skirlo, S.A., and M.J. Demkowicz. “The Role of Thermal Spike Compactness in Radiation-Induced Disordering and Frenkel Pair Production in Ni[subscript 3]Al.” Scripta Materialia 67, no. 7–8 (October 2012): 724–727.
Version
Author's final manuscript
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)[superscript 2/3]/(surface area), known as compactness. The disorder produced in thermal spikes in Ni[subscript 3]Al 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.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution-NonCommercial-NoDerivs License
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1016/j.scriptamat.2012.06.029
