Resonant Atmospheric Plasma-Sprayed Ceramic Layers Effectively absorb Microwaves at 170 GHz

Abstract Microwave absorbing layer materials (MALMs) are extremely important for many components in fusion reactors to absorb microwave radiation a controlled manner and with predictable power density. Therefore, detailed knowledge of absorption properties absorber coating used is necessary. Plasma-sprayed mixed oxide coatings most commonly those applications where moderate density expected. In this paper, plane wave model presented using refractive index coefficient as internal parameters incidence angle, polarization, thickness external parameters. The has been calculated assuming 170 GHz, envisaged the ITER research facility. Three atmospheric plasma-sprayed were considered work: titanium dioxide (TiO 2 ), chromium (Cr O 3 aluminum-titanium Al -TiO (40/60). Theoretical results compared free measurements two antennas. Different thicknesses have prepared measured different polarization angles. Results discussed regarding thickness, coefficient, index.