Search for dissertations about: "intrinsic conduction"
Showing result 1 - 5 of 28 swedish dissertations containing the words intrinsic conduction.
-
1. Surface potential dynamics on insulating polymers for HVDC applications
Abstract : The use of high voltage direct current (HVDC) technology in power transmission systems is continuously expanding. Nowadays, HVDC transmissions operate at voltages up to 800 kV and higher levels are being developed. READ MORE
-
2. Electronic Structure of intrinsic and doped Silicon Carbide and Silicon
Abstract : Silicon (Si) is the most exploited material within the semiconductor device technology, mainly due to its relatively good electron and hole mobilities and the simplicity to fabricate and process the material. Silicon carbide (SiC) has, however, a wider band gap, a higher breakdown electric field strength, and a higher thermal conductivity, which makes SiC one of the most promising materials for high-power devices. READ MORE
-
3. Dielectric Properties of Liquid-Impregnated Porous Solids
Abstract : Dielectric spectroscopy is a versatile tool that can often be used as a non-destructive, indirect way of measuring other important properties (such as content of crude oil or degree of curing of a resin). The dielectric properties of materials are thus of interest in several circumstances and not only for materials used for electrical purposes (such as electrical insulation). READ MORE
-
4. Charge transport in polymer-based insulating materials for high voltage applications: effect of single- and multi-layered structures
Abstract : Polymer composites have been widely employed as electrical insulating materials for high voltage components and devices such as power cables, gas-insulated systems, rotating machines, line and post insulators, etc. Such materials are usually made by introducing inorganic oxides (SiO2, TiO2, Al2O3, MgO) into polymeric matrices e.g. READ MORE
-
5. The influence of crystallinity on the properties of carbon nanotubes
Abstract : Carbon nanotubes have been advertised as a material with quite extraordinary properties, both mechanically and electrically. The truth is that carbon nanotubes is not one material, but several different. READ MORE