Research on the Influence of Temperature and Pressure on Volume, Enthalpy, Entropy, Debye Temperature, Electrical Resistivity, Thermal Conductivity and Thermal Diffusivity of AU with FCC Structure

Abstract

The melting temperature, the jumps of volume, enthalpy and entropy at the melting point, the isothermal compressibility, the thermal expansion coefficient, the heat capacity at constant volume, the Gruneisen parameter, the Debye temperature, the electrical resistivity, the thermal conductivity and the thermal diffusivity for FCC defective and perfect metals are studied by combining the statistical moment method (SMM), the limiting condition of the absolute stability of the crystalline state, the Clapeyron-Clausius equation, the Debye model, the Gruneisen equation, the Wiedemann-Franz law and the Mott equation. Our numerical calculations of obtained theoretical results are carried out for Au under high temperature and pressure. The SMM calculated melting curve of Au is in good agreement with experiments and other calculations. Our calculations for the jumps of volume, enthalpy and entropy, the thermal conductivity and the thermal diffusivity of Au predict and orient experimental results in the future.