TY - GEN
T1 - DETAILED MICROSTRUCTURE CHARACTERISATION OF 3D PRINTED CARBON-FIBRE/PEEK USING X-RAY COMPUTED TOMOGRAPHY
AU - Sommacal, Silvano
AU - Holmes, John
AU - Matschinski, Alexander
AU - Drechsler, Klaus
AU - Compston, Paul
N1 - Publisher Copyright:
© 2022 Sommacal et al.
PY - 2022
Y1 - 2022
N2 - Extrusion-based processes offer the possibility of producing carbon fibre reinforced composite (CFRC) components for lightweight construction of virtually any size and shape. However, many challenges still need to be addressed before their widespread adoption. Chief amongst them is the presence of defects and the material's anisotropic and heterogeneous internal structure. In this study, X-ray micro-computed tomography (micro-CT) has been utilised to analyse, characterise and compare two suites of five 3D printed short CF/PEEK samples and the two commercial feedstock materials used to produce them. Main material constituents (fibres, matrix, voids) have been identified and segmented, their distribution mapped and visualised in 3D and respective volume fractions quantified. Voids have been individually labelled and their key geometrical characteristics extracted and analysed. Similarly, preferential fibre orientation has been measured. Furthermore, the effect of key 3D printing parameters on samples' microstructure has been assessed.
AB - Extrusion-based processes offer the possibility of producing carbon fibre reinforced composite (CFRC) components for lightweight construction of virtually any size and shape. However, many challenges still need to be addressed before their widespread adoption. Chief amongst them is the presence of defects and the material's anisotropic and heterogeneous internal structure. In this study, X-ray micro-computed tomography (micro-CT) has been utilised to analyse, characterise and compare two suites of five 3D printed short CF/PEEK samples and the two commercial feedstock materials used to produce them. Main material constituents (fibres, matrix, voids) have been identified and segmented, their distribution mapped and visualised in 3D and respective volume fractions quantified. Voids have been individually labelled and their key geometrical characteristics extracted and analysed. Similarly, preferential fibre orientation has been measured. Furthermore, the effect of key 3D printing parameters on samples' microstructure has been assessed.
KW - Fused Filament Fabrication (FFF)
KW - Micro-computed tomography (micro-CT)
KW - Microstructure characterisation
KW - Short carbon fibre reinforced composite (CFRC)
UR - http://www.scopus.com/inward/record.url?scp=85149180159&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85149180159
T3 - ECCM 2022 - Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability
SP - 644
EP - 651
BT - Characterization
A2 - Vassilopoulos, Anastasios P.
A2 - Michaud, Veronique
PB - Composite Construction Laboratory (CCLab), Ecole Polytechnique Federale de Lausanne (EPFL)
T2 - 20th European Conference on Composite Materials: Composites Meet Sustainability, ECCM 2022
Y2 - 26 June 2022 through 30 June 2022
ER -