Waveguide measurements of biochar derived from sewage sludge
Patrizia Savi, Muhammad Yasir
Abstract
Composites based on biochar derived from sewage sludge as filler in epoxy resin are fabricated and measured in a waveguide in C‐band. Biochar is cheap, readily available and environmentally friendly and thus is a very good contender among other carbon‐based materials for use in shielding applications. Biochar provide promising results in term of transmission of <−10 dB for a composite with 20 wt.% biochar filler. The dissipation loss, calculated from the scattering parameters show that a significant portion of the losses are due to dissipation.
Topics & Concepts
BiocharSewage sludgeWaveguideEnvironmental scienceSewageWaste managementMaterials scienceEnvironmental engineeringOptoelectronicsEngineeringPyrolysisElectromagnetic wave absorption materialsAcoustic Wave Phenomena ResearchAdvanced Antenna and Metasurface Technologies