Effect of surface treatment on the mechanical and interfacial properties of single carbon fibre

Carbon-fibre reinforced composite (CFRC) is widely used in industries nowadays due to its excellent mechanical properties. It is crucial to study the interface between the carbon fibre and the matrix as insufficient interfacial adhesion easily leads to failure of the composite. The interfacial adhes...

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Main Author: Ci, Ruixiang
Other Authors: Chen Zhong
Format: Final Year Project
Language:English
Published: 2015
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Online Access:http://hdl.handle.net/10356/62368
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-623682023-03-04T15:39:17Z Effect of surface treatment on the mechanical and interfacial properties of single carbon fibre Ci, Ruixiang Chen Zhong School of Materials Science and Engineering DRNTU::Engineering::Materials Carbon-fibre reinforced composite (CFRC) is widely used in industries nowadays due to its excellent mechanical properties. It is crucial to study the interface between the carbon fibre and the matrix as insufficient interfacial adhesion easily leads to failure of the composite. The interfacial adhesion between untreated carbon fibre and epoxy in a CFRC is poor, and surface treatment is thus required to enhance the interfacial adhesion. Acid treatment and coating are two important techniques for surface treatment, and it is important to understand the effect of different conditions for these two techniques on the mechanical and interfacial properties of carbon fibre. Single carbon fibre is investigated on the micro level, and many parameters can be used to characterize the mechanical and interfacial properties, including tensile strength, Young’s modulus, apparent interfacial shear stress (IFSS) and interfacial fracture toughness. These parameters are measured using microtensile test and microbond test, two convenient methods with simple operation and reasonable results. Various models have been developed to describe the interfacial fracture toughness, and the most popular model links it with the critical energy release rate of interfacial crack. Experimental results show that the optimum acid treatment time is 15 to 30 minutes, and the optimum coating material is NiCuP, based on the abovementioned methodologies. Bachelor of Engineering (Materials Engineering) 2015-03-24T02:03:10Z 2015-03-24T02:03:10Z 2015 2015 Final Year Project (FYP) http://hdl.handle.net/10356/62368 en Nanyang Technological University 39 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Materials
spellingShingle DRNTU::Engineering::Materials
Ci, Ruixiang
Effect of surface treatment on the mechanical and interfacial properties of single carbon fibre
description Carbon-fibre reinforced composite (CFRC) is widely used in industries nowadays due to its excellent mechanical properties. It is crucial to study the interface between the carbon fibre and the matrix as insufficient interfacial adhesion easily leads to failure of the composite. The interfacial adhesion between untreated carbon fibre and epoxy in a CFRC is poor, and surface treatment is thus required to enhance the interfacial adhesion. Acid treatment and coating are two important techniques for surface treatment, and it is important to understand the effect of different conditions for these two techniques on the mechanical and interfacial properties of carbon fibre. Single carbon fibre is investigated on the micro level, and many parameters can be used to characterize the mechanical and interfacial properties, including tensile strength, Young’s modulus, apparent interfacial shear stress (IFSS) and interfacial fracture toughness. These parameters are measured using microtensile test and microbond test, two convenient methods with simple operation and reasonable results. Various models have been developed to describe the interfacial fracture toughness, and the most popular model links it with the critical energy release rate of interfacial crack. Experimental results show that the optimum acid treatment time is 15 to 30 minutes, and the optimum coating material is NiCuP, based on the abovementioned methodologies.
author2 Chen Zhong
author_facet Chen Zhong
Ci, Ruixiang
format Final Year Project
author Ci, Ruixiang
author_sort Ci, Ruixiang
title Effect of surface treatment on the mechanical and interfacial properties of single carbon fibre
title_short Effect of surface treatment on the mechanical and interfacial properties of single carbon fibre
title_full Effect of surface treatment on the mechanical and interfacial properties of single carbon fibre
title_fullStr Effect of surface treatment on the mechanical and interfacial properties of single carbon fibre
title_full_unstemmed Effect of surface treatment on the mechanical and interfacial properties of single carbon fibre
title_sort effect of surface treatment on the mechanical and interfacial properties of single carbon fibre
publishDate 2015
url http://hdl.handle.net/10356/62368
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