Electromagnetic shielding properties of carbon‐rich chemical vapor infiltration‐prone silicon carbide matrix composites
Copyright policy )Electromagnetic shielding properties of carbon‐rich chemical vapor infiltration‐prone silicon carbide matrix composites
Abstract This study focuses on the electromagnetic interference shielding effectiveness ( EMI SE ) of SiC nanowire/SiC ceramic composites (SiC nw /SiC) manufactured by chemical vapor infiltration of SiC nw aerogels with carbon‐rich SiC. The total EMI SE of a 1.0 mm thick ceramic composite specimen with density of only 2.68 g/cm 3 , was found to be 43‐44 dB , which indicates an excellent EM shielding capability of the ceramic composite corresponding to blocking of 99.99% of the incident EM signal. It was found that the carbon‐rich CVI ‐SiC matrix possess excellent EM shielding properties, therefore, the CVI ‐SiC CMC s themselves possess an excellent EM shielding property as a result of the carbon‐rich SiC matrix.
- Northwestern Polytechnical University China (People's Republic of)
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