Compression for data archiving and backup revisited
Corneliu Constantinescu
SPIE Optical Engineering + Applications 2009
The structural relaxation of a high-angle grain boundary at elevated temperatures has been simulated by molecular dynamics with the use of a bicrystal model composed of 399 atoms. The system studied was a =5 (36.9°), [001] tilt boundary with interatomic interactions given by the empirical Johnson potential for -Fe. In the presence of an extrinsic vacancy, the boundary structure was found to be stable up to temperatures of at least two-thirds the melting temperature. Vacancy jumps, confined preferentially to within the grain-boundary core, were observed. Also observed were the thermal activation of vacancy-interstitial pairs, and with increasing temperatures a variety of more complicated vacancy-jump sequences. The simulation data are relevant to the understanding of fast diffusion along grain boundaries, the kinetics of which is analyzed and discussed in the following paper. © 1984 The American Physical Society.
Corneliu Constantinescu
SPIE Optical Engineering + Applications 2009
H.D. Dulman, R.H. Pantell, et al.
Physical Review B
E. Babich, J. Paraszczak, et al.
Microelectronic Engineering
T. Schneider, E. Stoll
Physical Review B