Joining carbon/carbon composites with radially-aligned carbon nanotube-reinforced pyrocarbon bonding interlayer

Lei Feng; Ke zhi Li; Bei Xue; Qiang Song; Xin rui Song; Qian gang Fu

doi:10.1016/j.matlet.2016.10.067

Joining carbon/carbon composites with radially-aligned carbon nanotube-reinforced pyrocarbon bonding interlayer

Lei Feng, Ke zhi Li, Bei Xue, Qiang Song, Xin rui Song, Qian gang Fu

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

We reported a novel carbon nanotube/pyrocarbon (CNT/PyC) interlayer for joining carbon/carbon composites (C/C). Radially-aligned CNT was in-situ grown on the bonding surface of C/C and followed by the infiltration of PyC between CNT-covered C/C. Mechanical tests indicated that the average shear strength of CNT/PyC-bonded C/C was 19.2 MPa, 104% higher than that of neat PyC-bonded C/C. This great improvement results from the outstanding contributions of CNT involving enhancing interlayer-C/C interfacial interaction, inducing PyC texture to align around nanotubes instead of parallel to the bonding surface and increasing additional fracture process, which change the failure of bonded C/C from bonding-interlayer-failure dominated mode to substrate-failure dominated one.

Original language	English
Pages (from-to)	158-161
Number of pages	4
Journal	Materials Letters
Volume	187
DOIs	https://doi.org/10.1016/j.matlet.2016.10.067
State	Published - 15 Jan 2017

Keywords

Carbon materials
Carbon nanotubes
Interfaces
Structural
Texture

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10.1016/j.matlet.2016.10.067

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title = "Joining carbon/carbon composites with radially-aligned carbon nanotube-reinforced pyrocarbon bonding interlayer",

abstract = "We reported a novel carbon nanotube/pyrocarbon (CNT/PyC) interlayer for joining carbon/carbon composites (C/C). Radially-aligned CNT was in-situ grown on the bonding surface of C/C and followed by the infiltration of PyC between CNT-covered C/C. Mechanical tests indicated that the average shear strength of CNT/PyC-bonded C/C was 19.2 MPa, 104% higher than that of neat PyC-bonded C/C. This great improvement results from the outstanding contributions of CNT involving enhancing interlayer-C/C interfacial interaction, inducing PyC texture to align around nanotubes instead of parallel to the bonding surface and increasing additional fracture process, which change the failure of bonded C/C from bonding-interlayer-failure dominated mode to substrate-failure dominated one.",

keywords = "Carbon materials, Carbon nanotubes, Interfaces, Structural, Texture",

author = "Lei Feng and Li, {Ke zhi} and Bei Xue and Qiang Song and Song, {Xin rui} and Fu, {Qian gang}",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

year = "2017",

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doi = "10.1016/j.matlet.2016.10.067",

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journal = "Materials Letters",

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T1 - Joining carbon/carbon composites with radially-aligned carbon nanotube-reinforced pyrocarbon bonding interlayer

AU - Feng, Lei

AU - Li, Ke zhi

AU - Xue, Bei

AU - Song, Qiang

AU - Song, Xin rui

AU - Fu, Qian gang

PY - 2017/1/15

Y1 - 2017/1/15

N2 - We reported a novel carbon nanotube/pyrocarbon (CNT/PyC) interlayer for joining carbon/carbon composites (C/C). Radially-aligned CNT was in-situ grown on the bonding surface of C/C and followed by the infiltration of PyC between CNT-covered C/C. Mechanical tests indicated that the average shear strength of CNT/PyC-bonded C/C was 19.2 MPa, 104% higher than that of neat PyC-bonded C/C. This great improvement results from the outstanding contributions of CNT involving enhancing interlayer-C/C interfacial interaction, inducing PyC texture to align around nanotubes instead of parallel to the bonding surface and increasing additional fracture process, which change the failure of bonded C/C from bonding-interlayer-failure dominated mode to substrate-failure dominated one.

AB - We reported a novel carbon nanotube/pyrocarbon (CNT/PyC) interlayer for joining carbon/carbon composites (C/C). Radially-aligned CNT was in-situ grown on the bonding surface of C/C and followed by the infiltration of PyC between CNT-covered C/C. Mechanical tests indicated that the average shear strength of CNT/PyC-bonded C/C was 19.2 MPa, 104% higher than that of neat PyC-bonded C/C. This great improvement results from the outstanding contributions of CNT involving enhancing interlayer-C/C interfacial interaction, inducing PyC texture to align around nanotubes instead of parallel to the bonding surface and increasing additional fracture process, which change the failure of bonded C/C from bonding-interlayer-failure dominated mode to substrate-failure dominated one.

KW - Carbon materials

KW - Carbon nanotubes

KW - Interfaces

KW - Structural

KW - Texture

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DO - 10.1016/j.matlet.2016.10.067

M3 - 文章

AN - SCOPUS:84993967093

SN - 0167-577X

VL - 187

SP - 158

EP - 161

JO - Materials Letters

JF - Materials Letters

ER -

Joining carbon/carbon composites with radially-aligned carbon nanotube-reinforced pyrocarbon bonding interlayer

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Keywords

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