Processing and Dielectric Properties of TiO2 Thick Films for High-Energy Density Capacitor Applications
Journal
International Journal of Applied Ceramic Technology
Journal Volume
8
Journal Issue
6
Pages
1363-1373
Date Issued
2011
Author(s)
Abstract
Nanosized titanium dioxide (TiO 2 ) powders (∼40 nm) were used for preparation of tape‐casting slurries. Effect of various solvents and dispersants on the dispersability of TiO 2 slurries was studied by sedimentation tests and rheology measurements. TiO 2 green tapes were prepared by tape‐casting method and densified at 1000°C with a sintered density >95%. Dielectric properties of TiO 2 tapes were studied by measuring of dielectric constant, loss factor and dielectric breakdown strength (BDS) with respect to their microstructural development. BDS values as high as ∼1400 kV/cm were obtained for sintered tapes so that energy densities up to 14 J/cm 3 could be achieved.
SDGs
Type
journal article