Estimation of magnetic particle clustering in magnetic fluids from static magnetization experiments
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Updated: Sep 20, 2026

Frequency Mixing Magnetic Detection Scanner for Imaging Magnetic Particles in Planar Samples
Published on: June 9, 2016
1National Institute for R&D in Electrochemistry and Condensed Matter, Tirnava 1, 1900 Timisoara, Romania. socoliuc@icmct.uvt.ro
Abstract:
The volume fraction dependence of the static magnetization of two magnetic fluids with different degrees of steric stabilization was measured at low field values (0-10 kA/m) and it was found to be nonlinear for both magnetic fluids. The nonlinearity is more pronounced in the case of the less stabilized magnetic fluid. The experimental data were processed by nonlinear regression using an analytical model for the formation of chain-like magnetic particle aggregates in magnetic fluids. The calculated dependence on the degree of steric stabilization, magnetic field, and sample concentration of the mean number of particles per chain was in the range (1-1.04).
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