%0 Conference Proceedings
%4 sid.inpe.br/mtc-m21c/2020/
%2 sid.inpe.br/mtc-m21c/2020/
%@issn 2527-2586
%A Boss, A. F. N.,
%A Ferreira, H. R.,
%A Braghiroli, F. L.,
%A Amaral Labat, G. A.,
%A Souza, Ariane Aparecida Teixeira de,
%A Bouafif, H.,
%A Koubaa, A.,
%A Baldan, Maurício Ribeiro,
%A Lenz e Silva, G. F. B.,
%@affiliation Universidade de São Paulo (USP)
%@affiliation Instituto Federal de São Paulo (IFSP)
%@affiliation Universitè du Québec
%@affiliation Universidade de São Paulo (USP)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Centre Technologique de Résidus Industrielis
%@affiliation Universitè du Québec
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Universidade de São Paulo
%@electronicmailaddress alan.boss@usp.br
%@electronicmailaddress ariane.souza@inpe.br
%@electronicmailaddress mauricio.baldan@inpe.br
%T Investigation of sustainable porous carbon as radar absorving materials
%B Congresso Brasileiro de Carbono, 8
%D 2019
%8 08-11 out.
%I Associação Brasileira de Carbono
%C São João Del Rei, MG
%K Biochar, permittivity, RAM, sustainability, reflectivity.
%X Radar Absorbing Materials (RAMs) are composite materials able to attenuate the reflection of an incident electromagnetic wave. Usually, RAMs are made of a polymeric matrix and an electromagnetic absorbent filler, such as silicon carbide or carbon black. Several materials have been investigated as potential fillers, aiming on the improvement of the reflection loss (RL) and its frequency broadening. In this paper, we investigate biochar as a potential filler. Biochar is a sustainable porous carbon made from biomass waste. We characterized five different composites, ranging from 1 wt.% to 5 wt.% of biochar in the silicone rubber. Although the RL did not present a significant result, biochar RAMs can be applied on a multilayer structure, that is able to attenuate the RL up to -32 dB at 8.2 GHz.
%P 198
%@language en
%3 boss-investigation.pdf