Investigation of Compression Behaviour of Bulk Inorganic Materials (Al, Cu, Pb, Ni, and Zn) Under High Pressure

Abstract

This study investigates the compression behavior of aluminum (Al), copper (Cu), lead (Pb), nickel (Ni), and zinc (Zn) under varying pressure conditions, as predicted by several equations of state (EOS), including the Tait, Murnaghan, Kholiya and Chandra, and Shanker's equations. Each metal exhibits a consistent trend in volumetric compression (V/V0) as pressure increases from 0 to 16 GPa, indicating a decrease in volume relative to the original volume (V/V0). The Tait equation generally shows higher volumetric values at corresponding pressures compared to the other EOS models for all metals. In contrast, the Murnaghan equation provides values closely aligned with those from Kholiya and Chandra’s equation, with minor deviations observed, particularly in nickel and zinc at higher pressures. Shanker's equation consistently predicts the lowest (V/V0) values across all pressures for most metals, suggesting a more conservative estimate of volume reduction under compression. The data reveals the unique response of each metal to applied pressure, which is critical for applications in material science and engineering, providing insights into their mechanical properties and stability under extreme conditions. This comparative analysis enhances our understanding of the mechanical behavior of these metals, facilitating better material selection for high-pressure applications.