TY - JOUR
T1 - A SiC nanowires/Ba0.75Sr0.25Al2Si2O8 ceramic heterojunction for stable electromagnetic absorption under variable-temperature
AU - Li, Xin
AU - Lu, Xiaoke
AU - Li, Minghang
AU - Xue, Jimei
AU - Ye, Fang
AU - Fan, Xiaomeng
AU - Liu, Yongsheng
AU - Cheng, Laifei
AU - Zhang, Litong
N1 - Publisher Copyright:
© 2022
PY - 2022/10/20
Y1 - 2022/10/20
N2 - The application of semiconductor materials was limited as electromagnetic absorption materials, due to the unstable absorption performance caused by the temperature sensitivity. In this work, a structurally controllable ceramic heterojunction was developed by assembling structural units of SiC nanowires (SiCnws) and Ba0.75Sr0.25Al2Si2O8 (BSAS). Benefiting from the optimization of the energy gap and the construction of heterogeneous interfaces, the ceramic heterojunction can achieve stable electromagnetic absorption from room temperature to 600 °C, the effective absorption bandwidth is almost unchanged. And the minimum reflection loss value reached -63.6 dB at 600 °C. Meanwhile, the SiCnws/BSAS ceramic heterojunction shows stable electromagnetic absorption performance in various simulated outdoor environments, including acid rain, seawater, high temperature and water vapor corrosion. This result provides a fire-new idea to realize the environmental adaptability of electromagnetic absorption materials and largely broadens its application prospect.
AB - The application of semiconductor materials was limited as electromagnetic absorption materials, due to the unstable absorption performance caused by the temperature sensitivity. In this work, a structurally controllable ceramic heterojunction was developed by assembling structural units of SiC nanowires (SiCnws) and Ba0.75Sr0.25Al2Si2O8 (BSAS). Benefiting from the optimization of the energy gap and the construction of heterogeneous interfaces, the ceramic heterojunction can achieve stable electromagnetic absorption from room temperature to 600 °C, the effective absorption bandwidth is almost unchanged. And the minimum reflection loss value reached -63.6 dB at 600 °C. Meanwhile, the SiCnws/BSAS ceramic heterojunction shows stable electromagnetic absorption performance in various simulated outdoor environments, including acid rain, seawater, high temperature and water vapor corrosion. This result provides a fire-new idea to realize the environmental adaptability of electromagnetic absorption materials and largely broadens its application prospect.
KW - Ceramic heterojunction
KW - Energy gap regulation
KW - Environment adaptability
KW - Polarization effect
KW - Stable electromagnetic absorption
KW - Variable-temperature
UR - http://www.scopus.com/inward/record.url?scp=85128191820&partnerID=8YFLogxK
U2 - 10.1016/j.jmst.2022.02.032
DO - 10.1016/j.jmst.2022.02.032
M3 - 文章
AN - SCOPUS:85128191820
SN - 1005-0302
VL - 125
SP - 29
EP - 37
JO - Journal of Materials Science and Technology
JF - Journal of Materials Science and Technology
ER -