TY - JOUR
T1 - Fabrication of Si 3N 4-SiBC composite ceramic and its excellent electromagnetic properties
AU - Ye, Fang
AU - Zhang, Litong
AU - Yin, Xiaowei
AU - Zuo, Xinzhang
AU - Liu, Yongsheng
AU - Cheng, Laifei
PY - 2012/12
Y1 - 2012/12
N2 - To obtain better electromagnetic wave absorbing property, it is vitally necessary to develop novel ceramics with not only high dielectric loss but also low dielectric constant. Si 3N 4-SiBC, a composite ceramic with such dielectric properties, was fabricated by infiltrating SiBC into porous Si 3N 4 ceramic via low pressure chemical vapor infiltration. The high dielectric loss and the low dielectric constant are attributed to the unique microstructure of SiBC, which also leads to a very excellent wave-absorbing property of Si 3N 4-SiBC ceramic, attaining a minimal reflection coefficient of -28dB. Besides, the Si 3N 4-SiBC ceramic also shows a high mechanical property. Therefore, the Si 3N 4-SiBC ceramic exhibits great potential as an excellent functional and structural ceramic.
AB - To obtain better electromagnetic wave absorbing property, it is vitally necessary to develop novel ceramics with not only high dielectric loss but also low dielectric constant. Si 3N 4-SiBC, a composite ceramic with such dielectric properties, was fabricated by infiltrating SiBC into porous Si 3N 4 ceramic via low pressure chemical vapor infiltration. The high dielectric loss and the low dielectric constant are attributed to the unique microstructure of SiBC, which also leads to a very excellent wave-absorbing property of Si 3N 4-SiBC ceramic, attaining a minimal reflection coefficient of -28dB. Besides, the Si 3N 4-SiBC ceramic also shows a high mechanical property. Therefore, the Si 3N 4-SiBC ceramic exhibits great potential as an excellent functional and structural ceramic.
KW - Carbides
KW - Chemical vapour deposition
KW - Functional applications
KW - Si N
KW - SiC
UR - http://www.scopus.com/inward/record.url?scp=84866768953&partnerID=8YFLogxK
U2 - 10.1016/j.jeurceramsoc.2012.07.002
DO - 10.1016/j.jeurceramsoc.2012.07.002
M3 - 文章
AN - SCOPUS:84866768953
SN - 0955-2219
VL - 32
SP - 4025
EP - 4029
JO - Journal of the European Ceramic Society
JF - Journal of the European Ceramic Society
IS - 16
ER -