TY - JOUR
T1 - A sheath-core shaped ZrO2-SiC/SiO2 fiber felt with continuously distributed SiC for broad-band electromagnetic absorption
AU - Li, Xin
AU - Li, Minghang
AU - Lu, Xiaoke
AU - Zhu, Wenjie
AU - Xu, Hailong
AU - Xue, Jimei
AU - Ye, Fang
AU - Liu, Yongsheng
AU - Fan, Xiaomeng
AU - Cheng, Laifei
N1 - Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2021/9/1
Y1 - 2021/9/1
N2 - Silicon carbide (SiC), has been considered as one of the most suitable options for high-temperature electromagnetic absorption materials (EAMs), and it's still a challenge to achieve the broad-band absorption performance for SiC-based EAMs. In this work, according to the impedance matching principle, a kind of ZrO2-SiC/SiO2 fiber felt was prepared by combining chemical vapor infiltration (CVI) and oxidation treatment. SiC, as the electromagnetic (EM) absorber, was deposited continuously along the EM transparent ZrO2 fibers, and the SiO2 covered on SiC surface in the oxidation process, forming the unique sheath-core structure. It can form a large amount of interfaces to enhance the polarization loss, leading to excellent EM absorption performance with the reflection loss (RL) smaller than −8 dB at 4.50–18 GHz. The exploration results provide design inspiration to SiC-based EAMs with wide bandwidth strong absorption performance.
AB - Silicon carbide (SiC), has been considered as one of the most suitable options for high-temperature electromagnetic absorption materials (EAMs), and it's still a challenge to achieve the broad-band absorption performance for SiC-based EAMs. In this work, according to the impedance matching principle, a kind of ZrO2-SiC/SiO2 fiber felt was prepared by combining chemical vapor infiltration (CVI) and oxidation treatment. SiC, as the electromagnetic (EM) absorber, was deposited continuously along the EM transparent ZrO2 fibers, and the SiO2 covered on SiC surface in the oxidation process, forming the unique sheath-core structure. It can form a large amount of interfaces to enhance the polarization loss, leading to excellent EM absorption performance with the reflection loss (RL) smaller than −8 dB at 4.50–18 GHz. The exploration results provide design inspiration to SiC-based EAMs with wide bandwidth strong absorption performance.
KW - Broad-band electromagnetic absorption
KW - Continuously distributed
KW - Fiber felt
KW - Multiscale interfaces
KW - Sheath-core
UR - https://www.scopus.com/pages/publications/85103715810
U2 - 10.1016/j.cej.2021.129414
DO - 10.1016/j.cej.2021.129414
M3 - 文章
AN - SCOPUS:85103715810
SN - 1385-8947
VL - 419
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
M1 - 129414
ER -