Abstract
Bio-carbon has been deemed as a promising species of electromagnetic wave absorption materials for stealth material due to its unique pore structure and light weight as well as abundant available crude materials such as plants. In this paper, bio-carbon/ferrite porous architecture is prepared by a facile precursor pyrolysis route to acquire a light weight absorbent using natural bamboo and Fe(NO3)3 as the precursors. The product can be directly synthesized in a tube furnace at 800–1000 °C under nitrogen atmosphere protection. The minimum reflection loss (RL) can be tailored ranging from −43.2 dB at 17.6 GHz (the band width below −10 dB is 13.6 GHz, from 4.4 to 18.0 GHz) to −21.9 dB at 14.6 GHz (the band width below −10 dB is 6.4 GHz, from 11.6 to 18.0 GHz) by controlling the annealing temperature. The enhanced and frequency-adjustable EM absorption properties are provable determined by the coordination of complex permittivity and relative magnetic permeability of the composite carbon/ferrite.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
