Elaborately designed polymer dielectric films with low coefficient of thermal expansion demonstrating high and stable electrostatic energy density over a wide temperature range

In Situ Self-Fluorescence 3D Imaging of Micro/Nano Damage in Silicone Gel for Understanding Insulation Failure under High-Frequency Electric Fields

“…This phenomenon is repetitive, leading to degradation of insulation near the tip and the gradual formation of a dendritic discharge channel. According to phase field theory, the development of electrical trees is governed by the principle of minimum free energy, , with the main driving energies for this development coming from electrostatic effects, Joule heating, dielectric loss, and Maxwell stress. For electric tree splitting to occur, an induction period is required, which largely depends on the mechanical stress and temperature of the polymer.…”