کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1482586 | 1510481 | 2011 | 9 صفحه PDF | دانلود رایگان |
In this study, the thermal expansion and recrystallization behavior of amorphous Al and Ti are investigated using molecular dynamics simulations. Amorphous phases are obtained via rapid quenching from a liquid state and are subsequently heated at a rate of 1 K/ps. Using the change in simulation size over the course of heating, the thermal expansion coefficients of amorphous Al and Ti are calculated and compared to their crystalline counterparts. From a similar set of simulations, the recrystallization temperatures of Al and Ti are determined by analyzing their potential energy profiles. In addition, the change in volume as a result of the phase transition is quantified by comparing the atomic volumes of Al and Ti in both their amorphous and crystalline states.
► Amorphous Al and Ti are studied via molecular dynamics simulations.
► Thermal expansion coefficients are computed and compared to crystalline values.
► Recrystallization temperatures are determined from potential energy curves.
► Volume change due to devitrification is also quantified.
Journal: Journal of Non-Crystalline Solids - Volume 357, Issues 22–23, 15 November 2011, Pages 3765–3773