This book offers unique coverage of the mechanical properties of nano- and micro-dispersed magnetic fluids. Magnetic fluids are artificially created materials that do not exist in the nature. Researchers developing materials and devices are keenly interested in their "mutually exclusive" properties including fluidity, compressibility, and the ability to magnetize up to saturation in relatively small magnetic fields. Applications of micro- and nanodispersed magnetic fluids include magnetic-seals, magnetically operated grease in friction units and supports, separators of non-magnetic materials, oil skimmers and separators, sensors of acceleration and angle, and gap fillers in loudspeakers.
Table of Contents
Introduction to nanotechnology and microtechnology. The physical model of the continuous medium. Measurement of magnetic parameters of nano- and microdispersed media. The magnetocaloric effect in a nanodispersed magnetic system. Effect of the ponderomotive force. Comparison of equilibrium magnetisation of a nanodispersed magnetic fluid and a microdispersed ferrosuspension. Rheological properties of suspensions. Mechanical and magnetic properties of nanodispersed systems. Additive model of the elasticity of nano- and microdispersed systems. ‘Suspending’ a magnetic fluid in a pipe to investigate its rheological properties. Kinetic and strength properties of a magnetic fluid membrane. The cavitation model of the rupture–restoration of the magnetic fluid membrane. Methods for producing magnetic fluids and ferrosuspensions. Applications of nano- and microdispersed media
Vyacheslav Mikhailovich Polunin has been working in the Physics Department of Southwest State University in Kursk (Russia) for 40 years: as a senior lecturer, reader, and currently heads the department. He earned his PhD in physics from the Leningrad State University in Saint Petersburg, Russia. Dr. Polunin’s research interests include molecular physics, physical acoustics, and magnetohydrodynamics. He is also the author or co-author of nearly 350 scientific publications in Russian national science journals and many European countries. Dr. Polunin holds 15 author’s certificates and patents.