Drops deformation and magnetic permeability of a ferrofluid emulsion

TL;DR

This paper investigates how magnetic fields influence the structure and magnetic permeability of ferrofluid emulsions, revealing their unique magnetic properties and potential for controllable magnetic applications.

Contribution

It introduces a novel understanding of structural transformations and magnetic property control in ferrofluid emulsions under magnetic fields.

Findings

Ferrofluid emulsions exhibit strong, atypical magnetic properties.

Magnetic fields induce droplet deformation and inversion in emulsions.

Structural changes significantly alter the emulsion's magnetic permeability.

Abstract

In the paper the novel soft magnetic composite system is investigated. A ferrofluid emulsion studied demonstrates the strong magnetic properties which are atypical for commonly known emulsions. Interaction of ferrofluid emulsions with a magnetic field is considered. Structural transformations in these media, such as deformation of emulsion microdroplets and emulsion inversion, are studied. The changes in the relative permeability of emulsion associated with structural transformations are investigated. The theory of the observed phenomena is developed, and the feasibility of effectively controlling the magnetic properties of ferrofluid emulsions by applying a magnetic field is demonstrated.