This paper examines the dielectric properties of silicate coatings including mullite (3Al2O3-2SiO2), steatite (MgSiO3), spodumene (Li2O-Al2O3-4SiO2), and olivine with near-forsterite (Mg2SiO4) composition. The materials were sprayed using a water-stabilized plasma gun and the deposits were removed from the substrate, polished, and sputtered with aluminum on both sides. Electrical tests consisting of voltage, resistance, and capacitance measurements showed that the relative conductivity of plasma-sprayed silicates is stable between 200 Hz and 1 MHz, which is suitable for many insulation applications. Paper includes a German-language abstract.

This content is only available as a PDF.
You do not currently have access to this content.