TY - JOUR
T1 - Effects of carbon nanotubes by electrophoretic deposition on interlaminar properties of two dimensional carbon/carbon composites
AU - Li, Yunyu
AU - Guo, Lingjun
AU - Li, Hejun
AU - Ma, Haili
AU - Song, Qiang
N1 - Publisher Copyright:
© 2017, Wuhan University of Technology and Springer-Verlag GmbH Germany.
PY - 2017/10/1
Y1 - 2017/10/1
N2 - Carbon nanotubes (CNTs) were deposited uniformly on carbon cloth by electrophoretic deposition (EPD). Thereafter, CNT-doped clothes were stacked and densified by pyrocarbon via chemical vapor infiltration to fabricate two-dimensional (2D) carbon/carbon (C/C) composites. Effects of EPD CNTs on interlaminar shear performance and mode II interlaminar fracture toughness (GIIc) of 2D C/C composites were investigated. Results showed that EPD CNTs were uniformly covered on carbon fibers, acting as a porous coating. Such a CNT coating can obviously enhance the interlaminar shear strength and GIIc of 2D C/C composites. With increaing EPD CNTs, the interlaminar shear strength and GIIc of 2D C/C composites increase greatly and then decrease, both of which run up to their maximum values, i e, 13.6 MPa and 436.0 J·m−2, when the content of EPD CNTs is 0.54 wt%, 2.27 and 1.45 times of the baseline. Such improvements in interlaminar performance of 2D C/C composites are mainly beneficial from their increased cohesion of interlaminar matrix, which is caused not only by the direct reinforcing effect of EPD CNT network but also by the capacity of EPD CNTs to refine pyrocarbon matrix and induce multilayered microstructures that greatly increase the crack propagation resistance through “crack-blocking and -deflecting mechanisms”.
AB - Carbon nanotubes (CNTs) were deposited uniformly on carbon cloth by electrophoretic deposition (EPD). Thereafter, CNT-doped clothes were stacked and densified by pyrocarbon via chemical vapor infiltration to fabricate two-dimensional (2D) carbon/carbon (C/C) composites. Effects of EPD CNTs on interlaminar shear performance and mode II interlaminar fracture toughness (GIIc) of 2D C/C composites were investigated. Results showed that EPD CNTs were uniformly covered on carbon fibers, acting as a porous coating. Such a CNT coating can obviously enhance the interlaminar shear strength and GIIc of 2D C/C composites. With increaing EPD CNTs, the interlaminar shear strength and GIIc of 2D C/C composites increase greatly and then decrease, both of which run up to their maximum values, i e, 13.6 MPa and 436.0 J·m−2, when the content of EPD CNTs is 0.54 wt%, 2.27 and 1.45 times of the baseline. Such improvements in interlaminar performance of 2D C/C composites are mainly beneficial from their increased cohesion of interlaminar matrix, which is caused not only by the direct reinforcing effect of EPD CNT network but also by the capacity of EPD CNTs to refine pyrocarbon matrix and induce multilayered microstructures that greatly increase the crack propagation resistance through “crack-blocking and -deflecting mechanisms”.
KW - C/C composite
KW - carbon nanotube
KW - electrophoretic deposition
KW - interlaminar performance
KW - reinforcing mechanism
UR - http://www.scopus.com/inward/record.url?scp=85030844677&partnerID=8YFLogxK
U2 - 10.1007/s11595-017-1701-z
DO - 10.1007/s11595-017-1701-z
M3 - 文章
AN - SCOPUS:85030844677
SN - 1000-2413
VL - 32
SP - 994
EP - 1000
JO - Journal Wuhan University of Technology, Materials Science Edition
JF - Journal Wuhan University of Technology, Materials Science Edition
IS - 5
ER -