TY - JOUR
T1 - Effects of upgrading temperature on electromagnetic shielding properties of three-dimensional graphene/SiBCN/SiC ceramic composites
AU - Wang, Chenhao
AU - Liu, Yongsheng
AU - Zhao, Mingxi
AU - Ye, Fang
AU - Cheng, Laifei
N1 - Publisher Copyright:
© 2019 Elsevier Ltd and Techna Group S.r.l.
PY - 2019/12/1
Y1 - 2019/12/1
N2 - SiC coating is introduced using MTS-H2-Ar system via chemical vapor deposition technology. SER and SET of the composites increased from 7.5 dB to 18.9 dB–9.1 dB and 20.8 dB, respectively, due to the deposition of SiC coating. The influence of oxidation temperature on microstructure and electromagnetic interference shielding performance has been systematically investigated. The morphology of GF/SiBCN/SiC composite remained unchanged after oxidation at 900 °C. However, condensed particles which distributed around cauliflower-like structure disappeared and were replaced by some small particles with increasing temperature. The GF/SiBCN/SiC ceramic composites exhibited mass loss after oxidation at 900 °C initially and saw a slight mass gain afterwards. Graphene layers kept their integral structure and SET retention rate of 97% and 93% have been recorded after oxidation at 900 °C and 1100 °C for 10 h, respectively.
AB - SiC coating is introduced using MTS-H2-Ar system via chemical vapor deposition technology. SER and SET of the composites increased from 7.5 dB to 18.9 dB–9.1 dB and 20.8 dB, respectively, due to the deposition of SiC coating. The influence of oxidation temperature on microstructure and electromagnetic interference shielding performance has been systematically investigated. The morphology of GF/SiBCN/SiC composite remained unchanged after oxidation at 900 °C. However, condensed particles which distributed around cauliflower-like structure disappeared and were replaced by some small particles with increasing temperature. The GF/SiBCN/SiC ceramic composites exhibited mass loss after oxidation at 900 °C initially and saw a slight mass gain afterwards. Graphene layers kept their integral structure and SET retention rate of 97% and 93% have been recorded after oxidation at 900 °C and 1100 °C for 10 h, respectively.
KW - Electromagnetic interference shielding
KW - Oxidation temperature
KW - SiBCN
KW - Silicon carbide (SiC) coating
KW - Three-dimensional graphene foam
UR - http://www.scopus.com/inward/record.url?scp=85069717144&partnerID=8YFLogxK
U2 - 10.1016/j.ceramint.2019.07.110
DO - 10.1016/j.ceramint.2019.07.110
M3 - 文章
AN - SCOPUS:85069717144
SN - 0272-8842
VL - 45
SP - 21278
EP - 21285
JO - Ceramics International
JF - Ceramics International
IS - 17
ER -