@Article{BossFBASBKBS:2021:InSuPo,
               author = "Boss, Alan Fernando Ney and Ferreira, Helena Ravaglia and 
                         Braghiroli, Flavia Lega and Amaral Labat, Gisele Aparecida and 
                         Souza, Ariane Aparecida Teixeira de and Bouafif, Hassine and 
                         Koubaa, Ahmed and Baldan, Maur{\'{\i}}cio Ribeiro and Silva, 
                         Guilherme Frederico Bernardo Lenz e",
          affiliation = "{Universidade de S{\~a}o Paulo (USP)} and {Instituto Federal de 
                         S{\~a}o Paulo (IFSP)} and {Centre Technologique des R{\'e}sidus 
                         Industriels (CTRI)} and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)} and {Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Centre Technologique des R{\'e}sidus Industriels (CTRI)} and 
                         {Universit{\'e} du Qu{\'e}bec en Abitibi-T{\'e}miscamigue} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Universidade de S{\~a}o Paulo (USP)}",
                title = "Investigation of sustainable porous carbon as radar absorbing 
                         material",
              journal = "Mat{\'e}ria",
                 year = "2021",
               volume = "26",
               number = "2",
                pages = "e12963",
             keywords = "Biochar, permittivity, RAM, sustainability, reflectivity.",
             abstract = "Radar Absorbing Materials (RAMs) are composite materials able to 
                         attenuate 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 to improve the 
                         Reflection Loss (RL) and absorption bandwidth broadening. In this 
                         paper, a composite made with silicone rubber and biochar was 
                         investigated as a sustainable porous carbon made with biomass 
                         waste. Five different composites were characterized, composed of 1 
                         - 5 wt.% of biochar in the silicone rubber. Although the RL of 
                         pure biochar composites is not significant, it was demonstrated 
                         here how a biochar composite can improve the RL of a RAM material 
                         when it is applied as a double-layer structure. While the RL of a 
                         ferrite-based RAM with 2.0 mm thickness reaches -28 dB, a 
                         combination of this RAM with biochar composite reaches ~ -60 dB 
                         with the same thickness. The double-layer structure with 2.3 mm 
                         thickness can have an absorption bandwidth of 2.95 GHz over the 
                         X-band frequency range, and a structure with 2.6 mm thickness can 
                         reach a RL of ~-76 dB. This demonstrates a sustainable, cheaper, 
                         and lighter material application (i.e., biochar), which is 
                         successfully used in the development of high-efficient 
                         electromagnetic shield or sensors.",
                  doi = "10.1590/s1517-707620210002.1263",
                  url = "http://dx.doi.org/10.1590/s1517-707620210002.1263",
                 issn = "1579-2641",
                label = "lattes: 9764742132401600 4 BossFBASBKBS:2021:InSuPo",
             language = "pt",
           targetfile = "boss_investigation.pdf",
        urlaccessdate = "09 maio 2024"
}