A comparative study of strontium and titanium doped mullite in PVDF matrix and their phase behavior, microstructure and electrical properties

We have discussed the dielectric behavior, phase behavior, microstructure and electrical properties of strontium and titanium induced aluminno-silicate ceramic composite system doped in PVDF (Poly-vinyliden fluoride) matrix, with different molar concentration of titanium and strontium salts prepared via sol-gel route. The frequency dispersions of permittivity, conductivity and dissipation factor were investigated in detail. This paper demonstrates that the loading of a conductive component into a highly insulating matrix is an effective way to fabricate composites with simultaneously high permittivity. The incorporation of these metal doped mullite composites on PVDF can be used as dielectric material for the fabrication of high charge storing multilayer capacitors and also a promising candidate for electronic industries. (C) 2016 Elsevier B.V. All rights reserved.