The effects of chemical and mechanical interactions on the thermodynamic pressure for mineral solid solutions

Clavijo, Santiago P.; Espath, Luis; Calo, Victor M.

Abstract

We use a coupled thermodynamically consistent framework to model reactive chemo-mechanical responses of solid solutions. Specifically, we focus on chemically active solid solutions that are subject to mechanical effects due to heterogeneous stress distributions. The stress generation process is driven solely by volume changes associated with the chemical processes. We use this model to describe the underlying physics during standard geological processes. Furthermore, simulation results of a three-species solid solution provide insights into the phenomena and verify the interleaving between mechanical and chemical responses in the solid. In particular, we show the evolution of the thermodynamic pressure as the system goes to a steady state.

Citation

Clavijo, S. P., Espath, L., & Calo, V. M. (2023). The effects of chemical and mechanical interactions on the thermodynamic pressure for mineral solid solutions. Continuum Mechanics and Thermodynamics, 35, 1821-1840. https://doi.org/10.1007/s00161-023-01200-4

• Journal Article Type: Article
• Acceptance Date: Jan 31, 2023
• Online Publication Date: Mar 18, 2023
• Publication Date: 2023-09
• Deposit Date: Mar 21, 2023
• Publicly Available Date: Mar 19, 2024
• Journal: Continuum Mechanics and Thermodynamics
• Print ISSN: 0935-1175
• Electronic ISSN: 1432-0959
• Publisher: Springer Verlag
• Peer Reviewed: Peer Reviewed
• Volume: 35
• Pages: 1821-1840
• DOI: https://doi.org/10.1007/s00161-023-01200-4
• Keywords: Solid solutions · Chemical reactions · Phase-field model
• Public URL: https://nottingham-repository.worktribe.com/output/18806116
• Publisher URL: https://link.springer.com/article/10.1007/s00161-023-01200-4