The structuralization phenomena in magnetic fluid composites and their influence on transmissivity of light

A magnetic field induced agglomeration of magnetic and mu m-sized copper no n-magnetic particles in magnetic fluid with several volume concentrations o f magnetite and copper particles was studied by means of optical microscope equipped with video camera. Transmission of light through two crossed pola rizers and thin magnetic fluid and magnetic fluid composites film as a func tion of magnetic field was investigated. The experimental data showed that the presence of copper particles influences the aggregation processes of ma gnetic particles in magnetic fluids and transmissivity of light.