Effect of Carbon Fiber Surface Microstructure on Composite Interfacial Property Based on Image Quantitative Characterization Technique

The surface roughness (Ra) and composite interfacial property of carbon fiber (CF) are considered to be mainly affected by the microstructure of the CF surface. However, quantitative characterization of the CF surface microstructure is always a difficulty. How the CF surface microstructure affects t...

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Main Authors: Shu Xiong, Yan Zhao, Jiupeng Song
Format: Article
Language:English
Published: MDPI AG 2021-10-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/14/21/6367
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author Shu Xiong
Yan Zhao
Jiupeng Song
author_facet Shu Xiong
Yan Zhao
Jiupeng Song
author_sort Shu Xiong
collection DOAJ
description The surface roughness (Ra) and composite interfacial property of carbon fiber (CF) are considered to be mainly affected by the microstructure of the CF surface. However, quantitative characterization of the CF surface microstructure is always a difficulty. How the CF surface microstructure affects the interfacial property of CF composites is not entirely clear. A quantitative characterization technique based on images was established to calculate the cross-section perimeter and area of five types of CFs, as well as the number (N), width (W) and depth (D) of grooves on these CF surfaces. The CF composite interfacial shear strength (IFSS) was tested by the micro-droplet debonding test and modified by the realistic perimeter. The relationship between the groove structure parameter and the Ra, specific surface area and composite interfacial property was discussed in this article. The results indicated that the CF cross-section perimeter calculated by this technique showed strong consistency with the CF specific surface area and composite interfacial property. At last, the composite interface bonding mechanism based on defect capture was put forward. This mechanism can be a guiding principle for CF surface modification and help researchers better understand and establish interface bonding theories.
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spelling doaj.art-42f783afcef74876a474f0bc8891eb012023-11-22T21:11:05ZengMDPI AGMaterials1996-19442021-10-011421636710.3390/ma14216367Effect of Carbon Fiber Surface Microstructure on Composite Interfacial Property Based on Image Quantitative Characterization TechniqueShu Xiong0Yan Zhao1Jiupeng Song2School of Materials Science and Engineering, Beihang University, Beijing 100191, ChinaSchool of Materials Science and Engineering, Beihang University, Beijing 100191, ChinaSchool of Materials Science and Engineering, Beihang University, Beijing 100191, ChinaThe surface roughness (Ra) and composite interfacial property of carbon fiber (CF) are considered to be mainly affected by the microstructure of the CF surface. However, quantitative characterization of the CF surface microstructure is always a difficulty. How the CF surface microstructure affects the interfacial property of CF composites is not entirely clear. A quantitative characterization technique based on images was established to calculate the cross-section perimeter and area of five types of CFs, as well as the number (N), width (W) and depth (D) of grooves on these CF surfaces. The CF composite interfacial shear strength (IFSS) was tested by the micro-droplet debonding test and modified by the realistic perimeter. The relationship between the groove structure parameter and the Ra, specific surface area and composite interfacial property was discussed in this article. The results indicated that the CF cross-section perimeter calculated by this technique showed strong consistency with the CF specific surface area and composite interfacial property. At last, the composite interface bonding mechanism based on defect capture was put forward. This mechanism can be a guiding principle for CF surface modification and help researchers better understand and establish interface bonding theories.https://www.mdpi.com/1996-1944/14/21/6367carbon fibersurface microstructurequantitative characterizationinterfacial propertybonding mechanism
spellingShingle Shu Xiong
Yan Zhao
Jiupeng Song
Effect of Carbon Fiber Surface Microstructure on Composite Interfacial Property Based on Image Quantitative Characterization Technique
Materials
carbon fiber
surface microstructure
quantitative characterization
interfacial property
bonding mechanism
title Effect of Carbon Fiber Surface Microstructure on Composite Interfacial Property Based on Image Quantitative Characterization Technique
title_full Effect of Carbon Fiber Surface Microstructure on Composite Interfacial Property Based on Image Quantitative Characterization Technique
title_fullStr Effect of Carbon Fiber Surface Microstructure on Composite Interfacial Property Based on Image Quantitative Characterization Technique
title_full_unstemmed Effect of Carbon Fiber Surface Microstructure on Composite Interfacial Property Based on Image Quantitative Characterization Technique
title_short Effect of Carbon Fiber Surface Microstructure on Composite Interfacial Property Based on Image Quantitative Characterization Technique
title_sort effect of carbon fiber surface microstructure on composite interfacial property based on image quantitative characterization technique
topic carbon fiber
surface microstructure
quantitative characterization
interfacial property
bonding mechanism
url https://www.mdpi.com/1996-1944/14/21/6367
work_keys_str_mv AT shuxiong effectofcarbonfibersurfacemicrostructureoncompositeinterfacialpropertybasedonimagequantitativecharacterizationtechnique
AT yanzhao effectofcarbonfibersurfacemicrostructureoncompositeinterfacialpropertybasedonimagequantitativecharacterizationtechnique
AT jiupengsong effectofcarbonfibersurfacemicrostructureoncompositeinterfacialpropertybasedonimagequantitativecharacterizationtechnique