Some aspects of the surface tension temperature dependence of drop-like aggregates in magnetic fluids

A. S. Ivanov

Institute of Continuous Media Mechanics of the Ural Branch, RAS, Perm Federal Scientific Research Center, 1 Ak. Korolev str., 614013 Perm, Russia

Abstract
An experimental investigation of the surface tension temperature dependence σ(T) of the condensed phase (drop-like aggregates) in magnetic fluids undergoing magnetocontrollable phase transition of gas-liquid type was carried out. Accurate numerical processing of experimental data has revealed an anomalous (if compared to ordinary fluids) behavior of the σ(T) function for all tested samples: it enhances with the growth of temperature due to the granulometric aspect of the first-order phase transition in magnetic fluids. Figs 3, Refs 6.