Shear modulus of isotropic ferrogels

Zubarev, Andrey; Musikhin, AY; López López, Modesto Torcuato; Iskakova, Larisa; Bulytcheva, SV

doi:10.1016/j.jmmm.2019.01.015

Shear modulus of isotropic ferrogels - JMMM-2019.pdf (396.7Kb)

Identificadores

URI: http://hdl.handle.net/10481/67771

DOI: 10.1016/j.jmmm.2019.01.015

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Date

2019-01

Referencia bibliográfica

Journal of Magnetism and Magnetic Materials 477, 136-141, 2019

Sponsorship

A.Z, L.I. and A.M are grateful to the program of the Ministry of Education and Science of the Russian Federation, projects 02.A03.21.0006; 3.1438.2017/4.6; 3.5214.2017/6.7 as well as to the Russian Fund of Basic Researches, projects 18-08-00178 and 19-52- 12028. M.T.L-L acknowledges financial support by project FIS2017- 85954-R (Ministerio de Economía, Industria y Competitividad, MINECO, and Agencia Estatal de Investigación, AEI, Spain, cofunded by Fondo Europeo de Desarrollo Regional, FEDER, European Union).

Abstract

We present results of theoretical study of magnetorheological effect in ferrogels with magnetizable spherical particles chaotically distributed in a current gel. To avoid intuitive constructions with uncontrolled accuracy and adequacy, the analysis is done in the frames of the mathematically regular pair approximation. Our results demonstrate non monotonic increase of the composite shear modulus with the applied magnetic field. This effect is stronger for the systems with the soft gel, than for the relatively rigid ones.

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