Paterson, J H and Devine, R and Phelps, A D R (1999) Complex permeability of soft magnetic ferrite polyester resin composites at frequencies above 1 MHz. Journal of Magnetism and Magnetic Materials, 196-197. pp. 394-396. ISSN 0304-8853
Composite soft magnetic materials consist of magnetic particles in a non-magnetic matrix. The properties of such materials can be modelled using effective medium theory. Measurements have been made of the complex permeability of composites produced using ferrite powder and polyester resin. The success of various effective medium expressions in predicting the variation of complex permeability with composition has been assessed.
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