Вид документа : Статья из журнала Шифр издания : 53/B 16 Автор(ы) : Baidakov V. G., Tipeev A. O. Заглавие : Mechanical instability and nucleation in a Lennard-Jones fcc crystal at limiting stretching [Электронный ресурс] Место публикации : Chemical Physics Letters. - 2016. - Vol. 643. - С. 6-9 Систем. требования: http://www.sciencedirect.com/science/article/pii/S0009261415008489 Примечания : Bibliogr. : p. 8-9 (38 ref.). - 21.12.15 ББК : 53 Предметные рубрики: ФИЗИКА Ключевые слова (''Своб.индексиров.''): activation mechanisms--critical nuclei--crystal phase Аннотация: The method of molecular dynamics simulation has been used to investigate the mechanism of phase decay of a Lennard-Jones fcc crystal close to the boundary of a'ideal strength'. The attainability of states where the isothermal bulk modulus KT = ρ(∂p/∂ρ)T = 0 and KT 0 has been demonstrated at negative pressures. It has been shown that the decay of the crystal phase proceeds by different activation mechanisms: (i) by the formation of voids at temperatures below that of the endpoint of the melting line and (ii) by liquid-phase critical nuclei formation above this temperature Доп.точки доступа: Tipeev, A. O.; Байдаков Владимир Георгиевич