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http://dx.doi.org/10.3740/MRSK.2008.18.10.542

Effect of Degree of Particle Agglomeration on the Dielectric Properties of BaTiO3/Epoxy Composites  

Han, Jeong-Woo (Center for Energy Materials Research, KIST)
Kim, Byung-Kook (Center for Energy Materials Research, KIST)
Je, Hae-June (Center for Energy Materials Research, KIST)
Publication Information
Korean Journal of Materials Research / v.18, no.10, 2008 , pp. 542-546 More about this Journal
Abstract
$BaTiO_3$/epoxy composites can be applied as the dielectric materials for embedded capacitors. The effects of the degree of $BaTiO_3$ particle agglomeration on the dielectric properties of $BaTiO_3$/epoxy composites were investigated in the present study. The degree of particle agglomeration was controlled by the milling of the agglomerated particles. The size and content of the agglomerated $BaTiO_3$ particles decreased with an increase in the milling time. The dielectric constants and polarizations of $BaTiO_3$/epoxy composites abruptly decreased with the increase of the milling time. It was concluded that the dielectric constants and polarizations of $BaTiO_3$/epoxy composites decreased as the degree of particle agglomeration decreased. The degree of agglomeration of $BaTiO_3$ particles turned out to be a very influential factor on the dielectric properties of $BaTiO_3$/epoxy composites.
Keywords
$BaTiO_3$/epoxy composites; agglomeration; dielectric constant; capacitor;
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