Fabrication, Interfacial and Flexural Properties of a Polymer Composite Reinforced by γ-Al2O3/Al Fibres

Hao Tang; Aleksey B. Rogov; Constantinos Soutis; Aleksey Yerokhin

doi:10.1016/j.compositesa.2023.107502

Fabrication, Interfacial and Flexural Properties of a Polymer Composite Reinforced by γ-Al2O3/Al Fibres

Hao Tang, Aleksey B. Rogov, Constantinos Soutis, Aleksey Yerokhin

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

Abstract

Metal reinforcements in polymer matrix composites (PMC) provide enhanced architectural freedom and functional capabilities at low cost, but a weak interfacial bonding limits their applications. We utilised Plasma Electrolytic Oxidation (PEO) to deliver 2D Al ₂O ₃/Al woven cores used as PMC reinforcements. Alumina coatings reduced fibre tensile strength and modulus but significantly enhanced the epoxy-fibre interfacial strength from ∼ 12 MPa to ∼ 33 MPa, changing the failure mode of the composite from interfacial debonding to rupture due to the enhanced resistance of the epoxy-Al ₂O ₃ interface. The optimised bonding of hybrid Al ₂O ₃/Al fibre reinforcements s increased composites’ specific flexural modulus (E _f /ρ) by ∼ 58%. The study demonstrated the utility of PEO-based approach in the preparation of hybrid reinforcements to polymer matrix composites with enhanced mechanical behaviour.

Original language	English
Article number	107502
Journal	Composites Part A: Applied Science and Manufacturing
Volume	169
Early online date	6 Mar 2023
DOIs	https://doi.org/10.1016/j.compositesa.2023.107502
Publication status	E-pub ahead of print - 6 Mar 2023

Keywords

Polymer-matrix composites
hybrid fibres
fibre/matrix bond
Mechanical testing
surface treatments
plasma electrolytic oxidation

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Cite this

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title = "Fabrication, Interfacial and Flexural Properties of a Polymer Composite Reinforced by γ-Al2O3/Al Fibres",

abstract = "Metal reinforcements in polymer matrix composites (PMC) provide enhanced architectural freedom and functional capabilities at low cost, but a weak interfacial bonding limits their applications. We utilised Plasma Electrolytic Oxidation (PEO) to deliver 2D Al 2O 3/Al woven cores used as PMC reinforcements. Alumina coatings reduced fibre tensile strength and modulus but significantly enhanced the epoxy-fibre interfacial strength from ∼ 12 MPa to ∼ 33 MPa, changing the failure mode of the composite from interfacial debonding to rupture due to the enhanced resistance of the epoxy-Al 2O 3 interface. The optimised bonding of hybrid Al 2O 3/Al fibre reinforcements s increased composites{\textquoteright} specific flexural modulus (E f /ρ) by ∼ 58%. The study demonstrated the utility of PEO-based approach in the preparation of hybrid reinforcements to polymer matrix composites with enhanced mechanical behaviour.",

keywords = "Polymer-matrix composites, hybrid fibres, fibre/matrix bond, Mechanical testing, surface treatments, plasma electrolytic oxidation",

author = "Hao Tang and Rogov, {Aleksey B.} and Constantinos Soutis and Aleksey Yerokhin",

year = "2023",

month = mar,

day = "6",

doi = "10.1016/j.compositesa.2023.107502",

language = "English",

volume = "169",

journal = "Composites",

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TY - JOUR

T1 - Fabrication, Interfacial and Flexural Properties of a Polymer Composite Reinforced by γ-Al2O3/Al Fibres

AU - Tang, Hao

AU - Rogov, Aleksey B.

AU - Soutis, Constantinos

AU - Yerokhin, Aleksey

PY - 2023/3/6

Y1 - 2023/3/6

N2 - Metal reinforcements in polymer matrix composites (PMC) provide enhanced architectural freedom and functional capabilities at low cost, but a weak interfacial bonding limits their applications. We utilised Plasma Electrolytic Oxidation (PEO) to deliver 2D Al 2O 3/Al woven cores used as PMC reinforcements. Alumina coatings reduced fibre tensile strength and modulus but significantly enhanced the epoxy-fibre interfacial strength from ∼ 12 MPa to ∼ 33 MPa, changing the failure mode of the composite from interfacial debonding to rupture due to the enhanced resistance of the epoxy-Al 2O 3 interface. The optimised bonding of hybrid Al 2O 3/Al fibre reinforcements s increased composites’ specific flexural modulus (E f /ρ) by ∼ 58%. The study demonstrated the utility of PEO-based approach in the preparation of hybrid reinforcements to polymer matrix composites with enhanced mechanical behaviour.

AB - Metal reinforcements in polymer matrix composites (PMC) provide enhanced architectural freedom and functional capabilities at low cost, but a weak interfacial bonding limits their applications. We utilised Plasma Electrolytic Oxidation (PEO) to deliver 2D Al 2O 3/Al woven cores used as PMC reinforcements. Alumina coatings reduced fibre tensile strength and modulus but significantly enhanced the epoxy-fibre interfacial strength from ∼ 12 MPa to ∼ 33 MPa, changing the failure mode of the composite from interfacial debonding to rupture due to the enhanced resistance of the epoxy-Al 2O 3 interface. The optimised bonding of hybrid Al 2O 3/Al fibre reinforcements s increased composites’ specific flexural modulus (E f /ρ) by ∼ 58%. The study demonstrated the utility of PEO-based approach in the preparation of hybrid reinforcements to polymer matrix composites with enhanced mechanical behaviour.

KW - Polymer-matrix composites

KW - hybrid fibres

KW - fibre/matrix bond

KW - Mechanical testing

KW - surface treatments

KW - plasma electrolytic oxidation

U2 - 10.1016/j.compositesa.2023.107502

DO - 10.1016/j.compositesa.2023.107502

M3 - Article

VL - 169

JO - Composites

JF - Composites

SN - 0010-4361

M1 - 107502

ER -

Fabrication, Interfacial and Flexural Properties of a Polymer Composite Reinforced by γ-Al2O3/Al Fibres

Abstract

Keywords

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