Correlation between Structure and Dielectric Breakdown in LDPE/HDPE/Clay Nanocomposites

Dielectric Properties of Graphite Nanocomposites

Investigation of correlation between dielectric parameters and nanostructures in aqueous solution grown poly(vinyl alcohol)-montmorillonite clay nanocomposites by dielectric relaxation spectroscopy

Poly(vinyl alcohol) (PVA)-montmorillonite (MMT) clay nanocomposite films up to 10 wt% clay concentration were synthesized by aqueous solution grown technique. The relative complex dielectric function, alternating current electrical conductivity, electric modulus and impedance properties of these organic-inorganic nanocomposites were investigated in the frequency range from 20 Hz to 1 MHz at amb...

Time dependent dielectric breakdown in a low-k interlevel dielectric

Intralevel Time Dependent Dielectric Breakdown (TDDB) was studied in interdigitated comb structures comprised of standard Cu metallization and a low-k interlevel dielectric. The failure distribution was found to be best represented as being lognormal with sigma increasing as the field decreased. Kinetic studies revealed an exponential dependence on the electric field that fits 1/E closer than –...

Correlation between dielectric constant and chemical structure of sodium silicate glasses

The chemical structure of sodium aluminosilicate glasses is determined by high resolution x-ray photoelectron spectroscopy ~XPS! as silicon is gradually replaced by aluminum. A well-defined chemical state is found for silicon, aluminum, and sodium atoms, while three different environments are identified for oxygen atoms corresponding to Si–O–Si, Si–O–Al, and Si–O–Na bonds. The binding energy of...

Dielectric breakdown in a simplified parallel model

The growth of streamer trees in insulating fluids ~a submicrosecond process that triggers high-voltage breakdown! has been simulated with a combination of parallel-coding tools. Large grids and arrays display well the multifractal, self-avoiding character of the streamer trees. Three physical cases have been approximated by different power-law weightings of the statistical growth filter: dense ...