Delamination toughening of carbon fiber/epoxy laminates by hierarchical carbon nanotube-short carbon fiber interleaves

Helezi Zhou; Xusheng Du; Hong Yuan Liu; Huamin Zhou; Yun Zhang; Yiu Wing Mai

doi:10.1016/j.compscitech.2016.12.018

Delamination toughening of carbon fiber/epoxy laminates by hierarchical carbon nanotube-short carbon fiber interleaves

Helezi Zhou
, Xusheng Du
, Hong Yuan Liu
, Huamin Zhou
, Yun Zhang
, Yiu Wing Mai

Research output: Journal article publication › Journal article › Academic research › peer-review

156 Citations (Scopus)

Abstract

In this study, hierarchical short carbon fibers (SCFs) synthesized with carbon nanotubes (CNTs) were used as CNT-SCF interleaves to increase the mode I delamination fracture energy G_IC of carbon fiber/epoxy (CF/EP) composite laminates. Even at a relatively low CNT-SCF areal density, 1.0 mg/cm², G_IC (1.17 kJ/m²) was increased by 125% compared to the control laminates (0.52 kJ/m²), which is a very high value compared to those results obtained by other interleaving methods in CF/EP laminates. The toughening effects of SCFs in bulk epoxy and interleaved CF/EP laminates were also studied to better understand the failure mechanisms of the hierarchical CNT-SCF structure. SEM observations revealed synergistic toughening mechanisms in these CNT-SCF interleaved CF/EP laminates.

Original language	English
Pages (from-to)	46-53
Number of pages	8
Journal	Composites Science and Technology
Volume	140
DOIs	https://doi.org/10.1016/j.compscitech.2016.12.018
Publication status	Published - 1 Mar 2017
Externally published	Yes

Keywords

Carbon fibers
Carbon nanotubes
Delamination
Fracture toughness
Interface
Polymer-matrix composites (PMCs)

ASJC Scopus subject areas

Ceramics and Composites
General Engineering

More information

10.1016/j.compscitech.2016.12.018

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@article{02583c1d23f9493f8592e85f9d326f42,

title = "Delamination toughening of carbon fiber/epoxy laminates by hierarchical carbon nanotube-short carbon fiber interleaves",

abstract = "In this study, hierarchical short carbon fibers (SCFs) synthesized with carbon nanotubes (CNTs) were used as CNT-SCF interleaves to increase the mode I delamination fracture energy GIC of carbon fiber/epoxy (CF/EP) composite laminates. Even at a relatively low CNT-SCF areal density, 1.0 mg/cm2, GIC (1.17 kJ/m2) was increased by 125\% compared to the control laminates (0.52 kJ/m2), which is a very high value compared to those results obtained by other interleaving methods in CF/EP laminates. The toughening effects of SCFs in bulk epoxy and interleaved CF/EP laminates were also studied to better understand the failure mechanisms of the hierarchical CNT-SCF structure. SEM observations revealed synergistic toughening mechanisms in these CNT-SCF interleaved CF/EP laminates.",

keywords = "Carbon fibers, Carbon nanotubes, Delamination, Fracture toughness, Interface, Polymer-matrix composites (PMCs)",

author = "Helezi Zhou and Xusheng Du and Liu, \{Hong Yuan\} and Huamin Zhou and Yun Zhang and Mai, \{Yiu Wing\}",

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year = "2017",

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doi = "10.1016/j.compscitech.2016.12.018",

language = "English",

volume = "140",

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journal = "Composites Science and Technology",

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TY - JOUR

T1 - Delamination toughening of carbon fiber/epoxy laminates by hierarchical carbon nanotube-short carbon fiber interleaves

AU - Zhou, Helezi

AU - Du, Xusheng

AU - Liu, Hong Yuan

AU - Zhou, Huamin

AU - Zhang, Yun

AU - Mai, Yiu Wing

PY - 2017/3/1

Y1 - 2017/3/1

N2 - In this study, hierarchical short carbon fibers (SCFs) synthesized with carbon nanotubes (CNTs) were used as CNT-SCF interleaves to increase the mode I delamination fracture energy GIC of carbon fiber/epoxy (CF/EP) composite laminates. Even at a relatively low CNT-SCF areal density, 1.0 mg/cm2, GIC (1.17 kJ/m2) was increased by 125% compared to the control laminates (0.52 kJ/m2), which is a very high value compared to those results obtained by other interleaving methods in CF/EP laminates. The toughening effects of SCFs in bulk epoxy and interleaved CF/EP laminates were also studied to better understand the failure mechanisms of the hierarchical CNT-SCF structure. SEM observations revealed synergistic toughening mechanisms in these CNT-SCF interleaved CF/EP laminates.

AB - In this study, hierarchical short carbon fibers (SCFs) synthesized with carbon nanotubes (CNTs) were used as CNT-SCF interleaves to increase the mode I delamination fracture energy GIC of carbon fiber/epoxy (CF/EP) composite laminates. Even at a relatively low CNT-SCF areal density, 1.0 mg/cm2, GIC (1.17 kJ/m2) was increased by 125% compared to the control laminates (0.52 kJ/m2), which is a very high value compared to those results obtained by other interleaving methods in CF/EP laminates. The toughening effects of SCFs in bulk epoxy and interleaved CF/EP laminates were also studied to better understand the failure mechanisms of the hierarchical CNT-SCF structure. SEM observations revealed synergistic toughening mechanisms in these CNT-SCF interleaved CF/EP laminates.

KW - Carbon fibers

KW - Carbon nanotubes

KW - Delamination

KW - Fracture toughness

KW - Interface

KW - Polymer-matrix composites (PMCs)

UR - https://www.scopus.com/pages/publications/85007524811

U2 - 10.1016/j.compscitech.2016.12.018

DO - 10.1016/j.compscitech.2016.12.018

M3 - Journal article

AN - SCOPUS:85007524811

SN - 0266-3538

VL - 140

SP - 46

EP - 53

JO - Composites Science and Technology

JF - Composites Science and Technology

ER -

Delamination toughening of carbon fiber/epoxy laminates by hierarchical carbon nanotube-short carbon fiber interleaves

Abstract

Keywords

ASJC Scopus subject areas

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