TY - JOUR
T1 - Frenkel pair accumulation induced crystallization of amorphous MgAl2O4
AU - Chartier, Alain
AU - Yamamoto, Tomokazu
AU - Yasuda, Kazuhiro
AU - Meis, Constantin
AU - Matsumura, Syo
N1 - Funding Information:
T.Y. and A.C. would like to thank the support to their exchange and stays by CEA-Saclay and Kyushu University. This work was partly supported by Grant-in-Aid for Scientific Research (A) (Grant No. 18206068) from Japan Society for the Promotion of Science (JSPS) and by a grant from Egide Foundation, Paris, France. Parts of the calculations were done in CEA-Saclay using the Godunov cluster (DSM/INSTN).
Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2008/8/31
Y1 - 2008/8/31
N2 - The epitaxial and homogeneous irradiation induced re-crystallization of amorphous MgAl2O4 was studied by means of continuous Frenkel pair accumulation in the molecular dynamics framework. Present results point out that the re-crystallization induced by Frenkel pair accumulation appears in both cases to be thermally enhanced but non diffusive. It is governed by a local rearrangement of each point defect in the homogeneous case, while spontaneous Frenkel pair recombination process in the crystalline part or at the interface drives the re-crystallization in the epitaxial case.
AB - The epitaxial and homogeneous irradiation induced re-crystallization of amorphous MgAl2O4 was studied by means of continuous Frenkel pair accumulation in the molecular dynamics framework. Present results point out that the re-crystallization induced by Frenkel pair accumulation appears in both cases to be thermally enhanced but non diffusive. It is governed by a local rearrangement of each point defect in the homogeneous case, while spontaneous Frenkel pair recombination process in the crystalline part or at the interface drives the re-crystallization in the epitaxial case.
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U2 - 10.1016/j.jnucmat.2008.06.027
DO - 10.1016/j.jnucmat.2008.06.027
M3 - Article
AN - SCOPUS:48149102108
SN - 0022-3115
VL - 378
SP - 188
EP - 192
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
IS - 2
ER -