| dc.description.abstract | Melting point, particularly metal, is one of the important data for many
applications. For developing new materials, adequate theories for melting point
are very crucial. The determination of melting point using the popular phase change curve method is very easy but usually overestimate. In current work, we
determine the melting point of a pure metal (iron) using the method of solid liquid phase coexistence. For this goal, molecular dynamics simulation was
applied to obtain data of trajectories of atoms. Simulation (LAMMPS) and data
analysis (OVITO) procedures are strictly applied to obtain the accurate melting
point of iron based on the obtained trajectories data. For initial structure design
of simulation, we used the ATOMSK program. The melting point of iron
obtained using the phase change curve (PCC) method is about 2750 K < TPCC <
3250 K and using the coexistence phase (CP) method is TCP = 2325 K. A more
accurate calculation needs to include defects factor in the simulated material and
calculation. In this research we use the Morse potential to represent all of the
atomic interaction among atoms of Fe material. | en_US |
