Development of Low Loss Magnetodielectric Nanocomposites of Epoxy Resin and Iron Nanoparticles

Abstract

To achieve the aim of developing a new insulating substrate that can exhibit both high permittivity and high permeability, ferromagnetic iron nanoparticles were dispersed uniformly in epoxy resin. Measurements of the electrical conductivity, permittivity, and permeability indicate that the composite can be a good candidate for an insulating substrate with negligibly small eddy-current loss and sufficiently high permittivity. C⃝ 2014 Wiley Periodicals, Inc. Electr Eng Jpn, 190(2): 17-23, 2015; Published online in Wiley Online Library (wileyonlinelibrary.com).

Electrical insulation characteristics of alumina, titania, and organoclay nanoparticles filled PP/EPDM nanocomposites

“…The dielectric breakdown data are known to be in good agreement with the Weibull distribution, which can be expressed by eq. where Et s is the scale parameter or the characteristic parameter, Et is the random variable (the measuring values of the cumulative breakdown strength), and F ( Et ) indicates the cumulative failure probability for the Weibull distribution.…”

“…(1). 17 Figure 2(b)], and these clusters function as electrical defects. The addition of 4, 6, and 8 vol % TiO 2 also substantially weakened the PP/EPDM/TiO 2 nanocomposite.…”