Electromagnetic shielding properties of carbon‐rich chemical vapor infiltration‐prone silicon carbide matrix composites | Zendy

Han Daoyang | Zendy; Mei Hui | Zendy; Xiao Shanshan | Zendy; Cheng Laifei | Zendy

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Electromagnetic shielding properties of carbon‐rich chemical vapor infiltration‐prone silicon carbide matrix composites

Author(s) -

Han Daoyang,

Mei Hui,

Xiao Shanshan,

Cheng Laifei

Publication year - 2018

Publication title -

journal of the american ceramic society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.9

H-Index - 196

eISSN - 1551-2916

pISSN - 0002-7820

DOI - 10.1111/jace.15365

Subject(s) - chemical vapor infiltration , materials science , silicon carbide , composite material , ceramic matrix composite , electromagnetic shielding , ceramic , composite number , electromagnetic interference , electronic engineering , engineering

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.

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