Open AccessEquations of state for CaSiO3 phases based on the Helmholtz free energy
Author(s) -
Т. С. Соколова,
Peter I. Dorogokupets
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1787/1/012005
Subject(s) - helmholtz free energy , formalism (music) , thermodynamic free energy , thermodynamics , energy (signal processing) , helmholtz equation , range (aeronautics) , thermodynamic state , mathematics , physics , statistical physics , materials science , material properties , mathematical analysis , statistics , art , musical , visual arts , composite material , boundary value problem
Equations of state for the CaSiO 3 phases are constructed using a thermodynamic model based on the Helmholtz free energy. The proposed thermodynamic formalism is allowed us to calculate the full set of thermodynamic properties of minerals in a wide range of temperatures and pressures. The proposed equations of state are constructed with a small number of fitting parameters and reliably represent the properties of studied minerals under T–P or T–V parameters.