Microwave Conductivity of Fe and Mg Based Nanocomposites

Abstract

In the present study we report on the microwave conductivity of Fe and Mg based nanocomposites. They consist of an epoxy resin matrix reinforced with coarse Fe, mechanically milled Fe and mechanically milled Mg powders. Mechanically milled powders were obtained by high energy ball milling. The morphology of the obtained powders was characterized using Scanning Electron Microscopy (SEM). Electromagnetic scattering parameters were measured within a rectangular X-band metallic wave guide. Electromagnetic parameters were calculated using the Nicolson-Ross-Weir (NRW) algorithm. Microwave conductivity and associated skin depth spectra of the nanocomposites under study are deduced.