Behaviour of Fe-nanoparticles in magnetic field

作者：Sileika K^*; Skiedraite I; Bubulis A; Ragulskis K

来源：Journal of Vibroengineering, 2009, 11(2): 339-345.

• ferrofluids
• Fe-based nanoparticles
• nanoparticles in magnetic field
• cleaning of clots
• dispersion of nanoparticles
• control of ferrofluids
• piezocatheter-induced vibrations

Currently many Fe fluids are widely used in mechanical engineering, medicine and other fields, where it is required to clean tubes with small diameters or observe blood vessels. Fe fluid, composed of Fe-nanoparticles sized less than 100 nm, is an object of reported investigation. Firstly free-fluid structure is considered in order to establish a default state of distribution of Fe-nanoparticles. Subsequently a series of observations and analysis are performed for samples under influence of the magnetic field of varying strength, which is created by permanent magnets. Obtained visual results are compared with theoretical models of formation of particle structures in the magnetic field. Then samples that are subjected to magnetic field are investigated repeatedly in order to determine if relaxation of particles fit present theoretical models. After particles of Fe-fluid behaviour model is established, fluid samples are subjected to vibrations generated by piezoceramics.

• 出版日期2009-6