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Structural Transformations in Polydisperse Ferrofluids

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Abstract

Real polydisperse ferrofluid is modeled by a bidispersed magnetic colloid composed of “large” and “small” particles. It is assumed that the energy of magnetodipole interaction for small particles is much lower and that of large particles is substantially higher than their thermal energy. Therefore, large particles can combine into the chain and droplet aggregates that are present in a “sea” of small particles. The influence of small particles on the structurization in the ensemble of large particles is studied. It is shown that small particles can either prevent or stimulate these structural transformations depending on the parameters of a medium.

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  1. Ural State University, pr. Lenina 51, Yekaterinburg, 620083, Russia

    A. Yu. Zubarev & L. Yu. Iskakova

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  1. A. Yu. Zubarev
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  2. L. Yu. Iskakova
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Zubarev, A.Y., Iskakova, L.Y. Structural Transformations in Polydisperse Ferrofluids. Colloid Journal 65, 711–719 (2003). https://doi.org/10.1023/B:COLL.0000009113.62256.d8

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  • DOI: https://doi.org/10.1023/B:COLL.0000009113.62256.d8

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