TY - JOUR AU - Arkundato, Artoto AU - Maulina, Wenny AU - Rohman, Lutfi AU - Dewi Syarifah, Ratna AU - Ali Shafii, Mohammad PY - 2022/08/30 Y2 - 2024/03/28 TI - Rigid Procedure to Calculate the Melting Point of Metal Using the Solid-Liquid Phase (Coexistence) Method JF - JURNAL ILMU FISIKA JA - J. Ilmu Fis. VL - 14 IS - 2 SE - Research Article DO - 10.25077/jif.14.2.132-140.2022 UR - http://jif.fmipa.unand.ac.id/index.php/jif/article/view/494 SP - 132-140 AB - <p>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 &lt; <em>T</em><sub>PCC</sub> &lt; 3250 K and using the coexistence phase (CP) method is <em>T</em><sub>CP</sub> = 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.</p> ER -