We propose a continuum theory describing the evolution of magnetization and temperature in a rigid magnetic body. The theory is based on a microforce balance, an energy balance, and an entropy imbalance. We motivate the choice of a class of constitutive equations, consistent with the entropy imbalance, that appear appropriate to describe the phase transition taking place in a ferromagnet at the Curie point. By combining these constitutive equations with the balance laws, we formulate an initial-boundary value problem for the magnetization and temperature fields, and we prove existence of weak solutions.
Podio-Guidugli, P., Tomassetti, G., & Roubicek, T. (2008). A thermodynamically-consistent theory of the ferro/paramagnetic transition.
Tipologia: | Altro |
Citazione: | Podio-Guidugli, P., Tomassetti, G., & Roubicek, T. (2008). A thermodynamically-consistent theory of the ferro/paramagnetic transition. |
Lingua: | en |
Data di pubblicazione: | 7-nov-2008 |
Titolo: | A thermodynamically-consistent theory of the ferro/paramagnetic transition |
Autori: | Podio-Guidugli, Paolo;Tomassetti, Giuseppe;Roubicek, Tomas |
Autori: | |
Appare nelle tipologie: | 99 - Altro |
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