Piana Hartina, Piana Hartina and Suciyati, SW and Supriyanto, Amir and Junaidi, Junaidi (2020) Simulasi Dinamika Molekul Berbasis Kode LAMMPS untuk Mengkaji Titik Leleh Bahan Besi (Fe), Timbal (Pb) dan Aluminium (Al). Journal of Energy, Material, and Instrumentation Technology, 1 (2). pp. 64-74. ISSN 2747-2043

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Abstract

Research has been carried out with the aim of obtaining a molecular dynamics simulation model of the Al, Fe, Pb materials related to the crystal structure and characteristics of the materials at their melting point. This melting point simulation method uses the molecular dynamics simulation of the LAMMPS code using the Finnis-Sinclair EAM potential and uses the velocity-verlet algorithm equation. The melting point value analysis is carried out based on the graph of the phase change (solid-liquid) between the potential energy and temperature values of each material obtained from the LAMMPS output.The LAMMPS output contains Data on the position of the atoms are in XYZ format, and information is also obtained in the form of integration step, potential energy,temperature, volume, and pressure. The visualization results show that the crystal structure of aluminum reaches a melting point at 948.51°C, lead reaches a melting point at 952.92°C, iron reaches a melting point at 1521.25°C. Visualization of the crystal structure of the material when it reaches the melting point using the OVITO software and to analyze the characteristics of the crystal structure of the material with a radial distribution function curve using the ISAACS software.

Item Type:	Article
Subjects:	Q Science > QC Physics
Divisions:	Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA) > Prodi Fisika
Depositing User:	Dr. JUNAIDI
Date Deposited:	03 Jun 2021 01:05
Last Modified:	03 Jun 2021 01:05
URI:	http://repository.lppm.unila.ac.id/id/eprint/31772

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