A Study on the Model Relevant the Inner Relationship Between Melting Temperature and Pressure of Metals using the Melting Law

NAND KISHOR; Dr. Amar Kumar

doi:10.36948/ijfmr.2025.v07i06.63636

A Study on the Model Relevant the Inner Relationship Between Melting Temperature and Pressure of Metals using the Melting Law

Author(s)	Mr. NAND KISHOR, Dr. Amar Kumar
Country	India
Abstract	The melting behavior of metals under varying pressures provides essential insight into their thermodynamic and structural properties, with significant implications for material science, metallurgy, and geophysics. This study investigates the correlation between melting temperature and pressure for selected metals by applying the Melting Law, which establishes a theoretical framework to predict the variation of melting point with external pressure[1]. According to the Clapeyron equation and Lindemann’s criterion, the melting temperature of a metal generally increases with pressure due to the reduction in atomic volume and the enhancement of lattice stability. Using experimental and literature-based data for metals such as aluminum, copper, iron, and nickel, the study analyzes how pressure influences atomic vibrations, cohesive energy, and interatomic forces, all of which determine the melting process[2].The results reveal that the rate of increase in melting temperature with pressure depends strongly on the metal’s bonding nature, atomic packing, and compressibility. Transition metals with stronger metallic bonding, such as iron and nickel, exhibit a steeper pressure dependence than softer metals like aluminum. The findings also confirm that deviations from linearity occur at higher pressures, where electronic transitions and phase changes alter the melting behavior. The theoretical predictions derived from the Melting Law are in good agreement with available experimental data, validating its applicability across a wide pressure range[3].This study contributes to a deeper understanding of the thermodynamic relationship between pressure and melting temperature, offering a reliable predictive model for high-pressure conditions relevant to industrial metal processing and planetary interior studies. Future work may involve computational simulations to refine the constants in the Melting Law for broader classes of materials[4].
Keywords	Melting Law; Melting Temperature; Pressure Dependence; Metals; Thermodynamics; Phase Transition; High-Pressure Behavior; Clapeyron Equation; Lindemann’s Criterion; Metallic Bonding.
Field	Physical Science
Published In	Volume 7, Issue 6, November-December 2025
Published On	2025-12-21
DOI	https://doi.org/10.36948/ijfmr.2025.v07i06.63636

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A Study on the Model Relevant the Inner Relationship Between Melting Temperature and Pressure of Metals using the Melting Law

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