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Epoxy resin composites with high thermal conductivity have received a great deal of attention both in science and engineering. However, improving thermal conductivity usually relies on introduction of thermally conductive inorganic particles, which will inevitably decrease their mechanical strength. Here, we report a three-phase composite material with epoxy resin as matrix and both alumina (Al2O3...
Epoxy resin is widely used in high voltage apparatus as insulation due to its excellent mechanical, electrical and chemical properties. In recent years, researches on epoxy resin/nanocomposites have shown that the presence of nano-size filler in epoxy resin system can improve electrical, thermal and mechanical properties significantly. In the present paper, the epoxy resin containing nanosize SiO2...
Specific properties of insulation systems based on thermosetting and thermoplastic polymers can be enhanced by adding different types of inorganic fillers. The focus of this paper is on the effect of the filler size and modifications of the crystallinity of aluminum oxide (Al2O3) nanoparticles on the dielectric and thermal properties of epoxy-based composites. Nanoalumina in the α, γ and δ phases...
It has been widely anticipated that the combination of recent advances in nanocomposites technology with traditional and novel resin systems may create materials with enhanced electrical, thermal and mechanical properties. It has been recognised that charge dynamics under an electric field play an important role in determining the electrical performance of a material. In this research, the pulsed...
We studied the thermal and electromagnetic behavior of a conduction-cooled superconducting pulse coil. It was wound with a 4-strand parallel conductor composed of silver sheathed Bi2223 multifilamentary tapes and impregnated with an epoxy resin. We first investigated the temperature dependence of the thermal runaway current in dc operation. It was higher than the critical current by several tens amps...
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