Abstract
Results of studying a new scenario of condensation phase transition in the ensemble of ferrofluid particles are reported. Phase transition in this ensemble starts with the formation of chain clusters. Chains whose length exceeds a certain critical value dependent on temperature and magnetic field undergo collapse and are transformed into very dense globules. The globule evolution leads to the separation of ferrofluid into two phases with different particle density. Initial (chain collapse) and final (equilibrium) stages of phase transition are investigated. Calculations of the critical length of a chain corresponding to its collapse, as well as the characteristics of dense phase at the final separation stage are in good agreement with the results of known experiments.
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Zubarev, A.Y., Iskakova, L.Y. On the Theory of Structural Transformations in Magnetic Fluids. Colloid Journal 65, 703–710 (2003). https://doi.org/10.1023/B:COLL.0000009112.24619.ca
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DOI: https://doi.org/10.1023/B:COLL.0000009112.24619.ca