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		<doi>10.1590/s1517-707620210002.1271</doi>
		<issn>1579-2641</issn>
		<label>lattes: 9764742132401600 6 MedeirosMeSoSiBoAmBa:2021:CaElCo</label>
		<citationkey>MedeirosMeSoSiBoAmBa:2021:CaElCo</citationkey>
		<title>Caracterização eletromagnética do compósito de carbeto de silício e negro de fumo em matriz polimérica</title>
		<year>2021</year>
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		<author>Medeiros, Nila Cecília de Faria Lopes,</author>
		<author>Medeiros, Leonardo Iusuti de,</author>
		<author>Souza, Ariane Aparecida Teixeira de,</author>
		<author>Silva, Guilherme Frederico Bernardo Lenz e,</author>
		<author>Boss, Alan Fernando Ney,</author>
		<author>Amaral Labat, Gisele Aparecida,</author>
		<author>Baldan, Maurício Ribeiro,</author>
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		<group>COPDT-CGIP-INPE-MCTI-GOV-BR</group>
		<group>COPDT-CGIP-INPE-MCTI-GOV-BR</group>
		<affiliation>Universidade Estadual de Santa Cruz</affiliation>
		<affiliation>Instituto Nacional de Pesquisas Espaciais (INPE)</affiliation>
		<affiliation>Instituto Nacional de Pesquisas Espaciais (INPE)</affiliation>
		<affiliation>Universidade de São Paulo (USP)</affiliation>
		<affiliation>Universidade de São Paulo (USP)</affiliation>
		<affiliation>Instituto Nacional de Pesquisas Espaciais (INPE)</affiliation>
		<affiliation>Instituto Nacional de Pesquisas Espaciais (INPE)</affiliation>
		<electronicmailaddress></electronicmailaddress>
		<electronicmailaddress>fiusuti@gmail.com</electronicmailaddress>
		<electronicmailaddress>arianeapts97@gmail.com</electronicmailaddress>
		<electronicmailaddress></electronicmailaddress>
		<electronicmailaddress></electronicmailaddress>
		<electronicmailaddress>gisele.amarallabat@gmail.com</electronicmailaddress>
		<electronicmailaddress>mauricio.baldan@inpe.br</electronicmailaddress>
		<journal>Matéria</journal>
		<volume>26</volume>
		<number>2</number>
		<pages>e12971</pages>
		<transferableflag>1</transferableflag>
		<contenttype>External Contribution</contenttype>
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		<keywords>MARE, banda Ku, refletividade, permissividade, material dielétrico, RAM, Ku-band, reflectivity, permittivity, dielectric material.</keywords>
		<abstract>Este trabalho apresenta as propriedades eletromagnéticas de um Material Absorvedor de Radiação Eletromagnética (MARE) feito a partir de Carbeto de Silício (SiC) e Negro de Fumo (NF) como aditivos. O compósito SiC/NF foi produzido utilizando 70 %(m/m) de matriz de silicone, e variando as concentrações do aditivo em 3 %(m/m), 2 %(m/m) e 1 %(m/m) de NF com 27 %(m/m), 28 %(m/m) e 29 %(m/m) de SiC, respectivamente. A estrutura química e a morfologia das partículas de SiC e NF foram analisadas através de espectroscopia Raman e Microscopia Eletrônica de Varredura (MEV). As propriedades dielétricas dos MAREs foram obtidas por meio do analisador de rede vetorial na faixa de frequência de 12,4 a 18,0 GHz. Os resultados de refletividade mostraram que o compósito SiC/NF com 1 %(m/m) de NF apresentou a melhor absorção de radiação eletromagnética, chegando a -47,9 dB em 16,8 GHz com uma amostra de aproximadamente 5,5 mm de espessura. ABSTRACT: This work presents the electromagnetic properties of a Radar Absorbing Material (RAM) made with Silicon Carbide (SiC) and Carbon Black (CB) as additives. Composites of silicone rubber and SiC/CB were produced using 70 wt% of silicone rubber as matrix and a variation of 3 wt%, 2 wt% and 1 wt% of CB with 27 wt%, 28 wt% and 29 wt% of SiC as additive, respectively. The chemical structure and morphology of SiC and CB samples were analyzed through Raman spectroscopy and Scanning Electron Microscopy (SEM). The dielectric properties of the RAMs were obtained in the frequency range of 12.4  18.0 GHz. The reflectivity results presented that SiC/CB composite with 1 wt% of CB presented the best electromagnetic radiation absorption, reaching up to -47.9 dB at 16.8 GHz with a sample of 5.5 mm thickness.</abstract>
		<area>FISMAT</area>
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