Self-healing carbon fiber/epoxy laminates with particulate interlayers of a low-melting-point alloy

Se Jun Wang; Ji Hwan Jang; Jin Koo Kim; Jae Min Baek; Ji Hee Lee; Jinwook Jeong; Hohyun Keum; Seokpum Kim; Sang Yup Kim

doi:10.1016/j.compositesb.2024.111792

Self-healing carbon fiber/epoxy laminates with particulate interlayers of a low-melting-point alloy

Se Jun Wang
, Ji Hwan Jang
, Jin Koo Kim
, Jae Min Baek
, Ji Hee Lee
, Jinwook Jeong
, Hohyun Keum
, Seokpum Kim
, Sang Yup Kim

Composites Innovation

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

8 Scopus citations

Abstract

In order to prolong the service life of fiber-reinforced polymer composites, the implementation of self-healing ability with the micro-encapsulated healing agent has been extensively studied. However, such microcapsule-based self-healing composites typically suffer from degraded mechanical properties due to the liquid-phase inclusions, thereby limiting their proliferation. Here, a low-melting-point alloy is utilized as the particulate inclusions of carbon fiber/epoxy laminated composites. Field's Metal particles (melting point: 62 °C) are distributed between woven carbon fiber preforms followed by the resin impregnation to realize laminated composites with a Field's Metal-enhanced interlayer(s). The resulting laminated composites demonstrate the autonomic repair of interlaminar failure with a 40 % of healing efficiency. Most of all, the mechanical properties of these self-healing laminated composites are comparable to the conventional laminated composites attributed to the rigid inclusions that can be compressed to increase the fiber volume. Since the Field's Metal particle inclusions can bestow polymer composites with self-healing ability and the potential increase in mechanical properties, Field's Metal-enhanced fiber-reinforced polymer composites are expected to unlock the practical utility of self-healing composites.

Original language	English
Article number	111792
Journal	Composites Part B: Engineering
Volume	286
DOIs	https://doi.org/10.1016/j.compositesb.2024.111792
State	Published - Nov 2024

Funding

This manuscript has been authored by UT-Battelle, LLC, under contract DE-AC05-00OR22725 with the US Department of Energy (DOE). The US government retains and the publisher, by accepting the article for publication, acknowledges that the US government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for US government purposes. DOE will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan ( https://www.energy.gov/doe-public-access-plan ). This work is supported by the National Research Foundation of Korea (Grant number: NRF-2021R1F1A1056999 and RS-2024-00412289) and Korea Institute of Industrial Technology (Grant Number: KITECH EH-24-0005). This work is supported by the National Research Foundation of Korea (Grant number: NRF-2021R1F1A1056999 and RS-2023-00218379) and Korea Institute of Industrial Technology (Grant Number: KITECH EH-24-0005).

Keywords

A. polymer-matrix composites (PMCs)
B. Delamination
D. Mechanical testing
Smart materials

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10.1016/j.compositesb.2024.111792

Cite this

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title = "Self-healing carbon fiber/epoxy laminates with particulate interlayers of a low-melting-point alloy",

abstract = "In order to prolong the service life of fiber-reinforced polymer composites, the implementation of self-healing ability with the micro-encapsulated healing agent has been extensively studied. However, such microcapsule-based self-healing composites typically suffer from degraded mechanical properties due to the liquid-phase inclusions, thereby limiting their proliferation. Here, a low-melting-point alloy is utilized as the particulate inclusions of carbon fiber/epoxy laminated composites. Field's Metal particles (melting point: 62 °C) are distributed between woven carbon fiber preforms followed by the resin impregnation to realize laminated composites with a Field's Metal-enhanced interlayer(s). The resulting laminated composites demonstrate the autonomic repair of interlaminar failure with a 40 \% of healing efficiency. Most of all, the mechanical properties of these self-healing laminated composites are comparable to the conventional laminated composites attributed to the rigid inclusions that can be compressed to increase the fiber volume. Since the Field's Metal particle inclusions can bestow polymer composites with self-healing ability and the potential increase in mechanical properties, Field's Metal-enhanced fiber-reinforced polymer composites are expected to unlock the practical utility of self-healing composites.",

keywords = "A. polymer-matrix composites (PMCs), B. Delamination, D. Mechanical testing, Smart materials",

author = "Wang, \{Se Jun\} and Jang, \{Ji Hwan\} and Kim, \{Jin Koo\} and Baek, \{Jae Min\} and Lee, \{Ji Hee\} and Jinwook Jeong and Hohyun Keum and Seokpum Kim and Kim, \{Sang Yup\}",

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year = "2024",

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doi = "10.1016/j.compositesb.2024.111792",

language = "English",

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journal = "Composites Part B: Engineering",

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T1 - Self-healing carbon fiber/epoxy laminates with particulate interlayers of a low-melting-point alloy

AU - Wang, Se Jun

AU - Jang, Ji Hwan

AU - Kim, Jin Koo

AU - Baek, Jae Min

AU - Lee, Ji Hee

AU - Jeong, Jinwook

AU - Keum, Hohyun

AU - Kim, Seokpum

AU - Kim, Sang Yup

PY - 2024/11

Y1 - 2024/11

N2 - In order to prolong the service life of fiber-reinforced polymer composites, the implementation of self-healing ability with the micro-encapsulated healing agent has been extensively studied. However, such microcapsule-based self-healing composites typically suffer from degraded mechanical properties due to the liquid-phase inclusions, thereby limiting their proliferation. Here, a low-melting-point alloy is utilized as the particulate inclusions of carbon fiber/epoxy laminated composites. Field's Metal particles (melting point: 62 °C) are distributed between woven carbon fiber preforms followed by the resin impregnation to realize laminated composites with a Field's Metal-enhanced interlayer(s). The resulting laminated composites demonstrate the autonomic repair of interlaminar failure with a 40 % of healing efficiency. Most of all, the mechanical properties of these self-healing laminated composites are comparable to the conventional laminated composites attributed to the rigid inclusions that can be compressed to increase the fiber volume. Since the Field's Metal particle inclusions can bestow polymer composites with self-healing ability and the potential increase in mechanical properties, Field's Metal-enhanced fiber-reinforced polymer composites are expected to unlock the practical utility of self-healing composites.

AB - In order to prolong the service life of fiber-reinforced polymer composites, the implementation of self-healing ability with the micro-encapsulated healing agent has been extensively studied. However, such microcapsule-based self-healing composites typically suffer from degraded mechanical properties due to the liquid-phase inclusions, thereby limiting their proliferation. Here, a low-melting-point alloy is utilized as the particulate inclusions of carbon fiber/epoxy laminated composites. Field's Metal particles (melting point: 62 °C) are distributed between woven carbon fiber preforms followed by the resin impregnation to realize laminated composites with a Field's Metal-enhanced interlayer(s). The resulting laminated composites demonstrate the autonomic repair of interlaminar failure with a 40 % of healing efficiency. Most of all, the mechanical properties of these self-healing laminated composites are comparable to the conventional laminated composites attributed to the rigid inclusions that can be compressed to increase the fiber volume. Since the Field's Metal particle inclusions can bestow polymer composites with self-healing ability and the potential increase in mechanical properties, Field's Metal-enhanced fiber-reinforced polymer composites are expected to unlock the practical utility of self-healing composites.

KW - A. polymer-matrix composites (PMCs)

KW - B. Delamination

KW - D. Mechanical testing

KW - Smart materials

UR - https://www.scopus.com/pages/publications/85202581702

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DO - 10.1016/j.compositesb.2024.111792

M3 - Article

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VL - 286

JO - Composites Part B: Engineering

JF - Composites Part B: Engineering

M1 - 111792

ER -

Self-healing carbon fiber/epoxy laminates with particulate interlayers of a low-melting-point alloy

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Keywords

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