TY - JOUR
T1 - Mechanical Behavior and Electromagnetic Interference Shielding Properties of C/SiC-Ti3Si(Al)C2
AU - Fan, Xiaomeng
AU - Yin, Xiaowei
AU - Chen, Lingqi
AU - Zhang, Litong
AU - Cheng, Laifei
N1 - Publisher Copyright:
© 2016 The American Ceramic Society.
PY - 2016/5/1
Y1 - 2016/5/1
N2 - In this paper, a low-temperature densification process of Al-Si alloy infiltration was developed to fabricate C/SiC-Ti3Si(Al)C2, and then the microstructure, mechanical, and electromagnetic interference (EMI) shielding properties were studied compared with those of C/SiC-Ti3SiC2 and C/SiC-Si. The interbundle matrix of C/SiC-Ti3Si(Al)C2 is mainly composed of Ti3Si(Al)C2, which can bring various microdeformation mechanisms, high damage tolerance, and electrical conductivity, leading to the high effective volume fraction of loading fibers and electrical conductivity of C/SiC-Ti3Si(Al)C2. Therefore, C/SiC-Ti3Si(Al)C2 shows excellent bending strength of 556 MPa, fracture toughness 21.6 MPa·m1/2, and EMI shielding effectiveness of 43.9 dB over the frequency of 8.2-12.4 GHz. Compared with C/SiC-Si and C/SiC-Ti3SiC2, both the improvement of mechanical properties and EMI shielding effectiveness can be obtained by the introduction of Ti3Si(Al)C2 into C/SiC, revealing great potential as structural and functional materials.
AB - In this paper, a low-temperature densification process of Al-Si alloy infiltration was developed to fabricate C/SiC-Ti3Si(Al)C2, and then the microstructure, mechanical, and electromagnetic interference (EMI) shielding properties were studied compared with those of C/SiC-Ti3SiC2 and C/SiC-Si. The interbundle matrix of C/SiC-Ti3Si(Al)C2 is mainly composed of Ti3Si(Al)C2, which can bring various microdeformation mechanisms, high damage tolerance, and electrical conductivity, leading to the high effective volume fraction of loading fibers and electrical conductivity of C/SiC-Ti3Si(Al)C2. Therefore, C/SiC-Ti3Si(Al)C2 shows excellent bending strength of 556 MPa, fracture toughness 21.6 MPa·m1/2, and EMI shielding effectiveness of 43.9 dB over the frequency of 8.2-12.4 GHz. Compared with C/SiC-Si and C/SiC-Ti3SiC2, both the improvement of mechanical properties and EMI shielding effectiveness can be obtained by the introduction of Ti3Si(Al)C2 into C/SiC, revealing great potential as structural and functional materials.
UR - http://www.scopus.com/inward/record.url?scp=84957824085&partnerID=8YFLogxK
U2 - 10.1111/jace.14124
DO - 10.1111/jace.14124
M3 - 文章
AN - SCOPUS:84957824085
SN - 0002-7820
VL - 99
SP - 1717
EP - 1724
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
IS - 5
ER -