Optical Properties of Aggregated Magnetic Fluid: Birefringence and Light Scattering

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Abstract:

The optical properties of colloidal solutions of nanosized magnetite particles in kerosene were studied by optical methods (birefringence and light scattering). The data on the birefringence kinetics in nonstationary magnetic fields is used to determine the size distribution of magnetite particles and aggregates. It is shown that the particle size distribution essentially depends on the type of magnetic moments of the particles and aggregates. Static and dynamic light scattering experiments confirm the conclusion about the existence of a significant fraction of nanoparticles in the form of aggregates with sizes of several tens of nanometers.

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Solid State Phenomena (Volumes 233-234)

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314-317

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July 2015

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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[1] J. -C. Bacri, R. Perzynski, D. Salin, J. Servais, Magnetic transient birefringence of ferrofluids: particle size determination. J. de Physique, 48 (1987) 1385-1391.

DOI: 10.1051/jphys:019870048080138500

Google Scholar

[2] S.P. Stoylov: Colloid Electro-Optics: Theory, Techniques, Applications. Acad. Press, London. (1991).

Google Scholar

[3] A.N. Tikhonov, V.Y. Arsenin, Solutions of ill posed problems. Wiley, New York. (1977).

Google Scholar

[4] S.R. Wilson, P.J. Ridler, B.R. Jennings, Magnetic birefringence particle size distribution, J. Phys. D: Appl. Phys. 29 (1996), No. 3 885-888.

DOI: 10.1088/0022-3727/29/3/056

Google Scholar

[5] K.V. Erin, Magnetooptical Studies of Aggregates of Nanoparticles in Colloidal Solutions of Magnetite, Optics and Spectroscopy, 106 (2009), No. 6 858-862.

DOI: 10.1134/s0030400x09060113

Google Scholar

[6] R. Pecora, Dynamic light scattering measurement of nanometer particles in liquids, J. Nanoparticle Research, 2 (2000) 123-131.

Google Scholar

[7] C. Yerin, V. Padalka, Influence of electric field upon the formation of particles cluster in magnetic fluid, J. Magn. Magn. Matter. 289 (2005) 105-107.

DOI: 10.1016/j.jmmm.2004.11.031

Google Scholar

[8] C.V. Yerin, A.F. Golota, V.M. Ischenko Estimation of magnetic nanoparticles polydispersity by optical measurements, Nanotechnics, 31 (2012), No. 3 46-49.

Google Scholar