Study of magneto-viscosity of ferromagnetic MnZn-ferrite ferrofluid

Author

Thirupathi, G. ; Singh, R.

Author_Institution

Sch. of Phys., Univ. of Hyderabad, Hyderabad, India

fYear

2015

fDate

11-15 May 2015

Firstpage

1

Lastpage

1

Abstract

Ferromagnetic ferrofluids are exotic and useful in a wide range of applications from computer disk drives to rotary vacuum seals and speaker-damping technology [1]-[2]. The colloidal suspension of ferromagnetic nanoparticles gives high viscosity at low applied magnetic field. The high surface energy and magnetic interactions between particles can lead to formation of agglomerates of ferromagnetic nanoparticles in the fluid. The stabilization of particle size in ferrofluid can be done by using surfactant coated particles dispersed in low viscous fluids as colloidal.

Keywords

ferrites; ferromagnetic materials; magnetic fluids; magnetohydrodynamics; manganese compounds; nanomagnetics; nanoparticles; particle size; suspensions; viscosity; zinc compounds; Mn_0.75Zn_0.25Fe₂O₄; colloidal suspension; ferrite; ferromagnetic ferrofluid; ferromagnetic nanoparticles; magnetic interactions; magnetoviscosity; particle size; rotary vacuum seals; speaker damping technology; surface energy; surfactant coated particles; Magnetic fields; Magnetic hysteresis; Magnetic liquids; Magnetomechanical effects; Nanoparticles; Viscosity;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference (INTERMAG), 2015 IEEE

Conference_Location

Beijing

Print_ISBN

978-1-4799-7321-7

Type

conf

DOI

10.1109/INTMAG.2015.7157582

Filename

7157582