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dc.contributor.authorNamitha, L K-
dc.contributor.authorChameswary, J-
dc.contributor.authorAnanthakumar, S-
dc.contributor.authorSebastian, M T-
dc.date.accessioned2013-07-03T10:34:34Z-
dc.date.available2013-07-03T10:34:34Z-
dc.date.issued2013-
dc.identifier.citationCeramics International 39(6):7077-7087;2013-
dc.identifier.urihttp://hdl.handle.net/123456789/527-
dc.description.abstractSilicone rubber composites filled with micro- and nano-alumina were prepared and the effect of filler contents on the microwave dielectric, mechanical, thermal and moisture absorption properties were investigated. The composite with 0.45 volume fraction (Vf) of micro alumina has a relative permittivity (εr ) of 5.89 and dielectric loss (tan δ) of 9×10–3 whereas 0.05 volume fraction of nano-alumina has εr of 3.52 and tan δ of 1.97×10–2, respectively at 5 GHz. The experimental εr and tan δ values of silicone rubber-micro-alumina composites were compared with that of theoretical models. Among the theoretical models Modified Lichtenecker and Parallel model are in good agreement with experimental values of εr and tan δ respectively. The silicone rubber nano-alumina composites have better mechanical properties. The coefficient of thermal expansion (CTE) of composites decreased and the moisture absorption increased with increasing amount of filler loading. The improved properties indicate that the silicone rubber-micro-alumina composite is a good candidate for a flexible microwave substrate applicationen_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.subjectHot pressingen_US
dc.subjectCompositesen_US
dc.subjectDielectric propertiesen_US
dc.subjectAl2O3en_US
dc.subjectSubstratesen_US
dc.titleEffect of micro-and nano-fillers on the properties of silicone rubber-alumina flexible microwave substrateen_US
dc.typeArticleen_US
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