TY - JOUR
T1 - Radiation effects in concentrated alloys and compounds
T2 - equilibrium and kinetics of driven systems
AU - Martin, Georges
AU - Bellon, Pascal
N1 - One of us (P.B.) acknowledges support from U.S. Department of Energy, Division of Materials Sciences under Award No. DEFG02-05ER46217, through the Frederick Seitz Materials Research Laboratory at the University of Illinois at Urbana-Champaign.
PY - 2008/4
Y1 - 2008/4
N2 - What organization of condensed matter does resist irradiation, as a function of irradiation conditions? How to characterize the latter? We survey the advances in the field during the past three decades, when irradiation effects reduce to nuclear collisions. While in simple cases (structure defined by a scalar order parameter) one may define a stochastic potential, which yields the stationary states of the compounds under irradiation and their respective stability, in more general cases, we are left with brute force atomistic simulations to explore materials' behaviour as a function of irradiation conditions. Special attention is given to the kinetics of concentration fields under irradiation, a question with several practical implications. We conclude that irradiation conditions are best defined by three parameters: the cascade features (number of displacements and replacements, length of replacement sequences, ...), the frequency of cascade occurrence, and the cumulated dose. We suggest cascade features be named '(elementary) dose' and the cascade occurrence frequency 'dose rate'. To cite this article: G. Martin, P. Bellon, C. R. Physique 9 (2008).
AB - What organization of condensed matter does resist irradiation, as a function of irradiation conditions? How to characterize the latter? We survey the advances in the field during the past three decades, when irradiation effects reduce to nuclear collisions. While in simple cases (structure defined by a scalar order parameter) one may define a stochastic potential, which yields the stationary states of the compounds under irradiation and their respective stability, in more general cases, we are left with brute force atomistic simulations to explore materials' behaviour as a function of irradiation conditions. Special attention is given to the kinetics of concentration fields under irradiation, a question with several practical implications. We conclude that irradiation conditions are best defined by three parameters: the cascade features (number of displacements and replacements, length of replacement sequences, ...), the frequency of cascade occurrence, and the cumulated dose. We suggest cascade features be named '(elementary) dose' and the cascade occurrence frequency 'dose rate'. To cite this article: G. Martin, P. Bellon, C. R. Physique 9 (2008).
KW - Complex materials
KW - Radiation damage
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U2 - 10.1016/j.crhy.2007.11.006
DO - 10.1016/j.crhy.2007.11.006
M3 - Short survey
AN - SCOPUS:43049114144
SN - 1631-0705
VL - 9
SP - 323
EP - 334
JO - Comptes Rendus Physique
JF - Comptes Rendus Physique
IS - 3-4
ER -