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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Berthet, Florentin
IMT Mines Albi
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (21/21 displayed)
- 2023Errors in surface energy estimation of fibres for Liquid Composite Moulding processes and potential origins
- 2022Long-term creep behavior of a short carbon fiber-reinforced PEEK at high temperature: Experimental and modeling approachcitations
- 2021A comparative study of the crystallinity of Polyetheretherketone by using density, DSC, XRD, and Raman spectroscopy techniquescitations
- 2021Surface energy determination of fibres for Liquid Composite Moulding processes: method to estimate equilibrium contact angles from static and quasi-static datacitations
- 2020Investigation of mechanical properties of nonwoven second generation composite material elaborated through a mixture of carbon fibers and filament lengths
- 2019Model hybrid recycled carbon fiber composite
- 2018Modelling the shape of an adhesive joint during assembly ; Modélisation de la forme d'un joint d'adhésif pendant l'assemblage
- 2018Mechanical Characterization of Carbon Fibres Recycled by Steam Thermolysis ; Mechanical Characterization of Carbon Fibres Recycled by Steam Thermolysis: A Statistical Approachcitations
- 2018Investigation of mechanical properties of nonwoven second generation composite material elaborated through a mixture of carbon fibers and filament lengths
- 2018Mechanical Characterization of Carbon Fibres Recycled by Steam Thermolysiscitations
- 2018Modelling the shape of an adhesive joint during assembly
- 2017Characterization of the Interfacial shear strength of short-recycled carbon fibre-reinforced PA66 thermoplastic composites
- 2015Methods for determining interfacial shear strength. Application to PA66 10%CF
- 2013Effects of process parameters on the mechanical properties and morphology of stitched and non-stitched carbon/epoxy liquid resin-infused NCF laminate, out of autoclave and out of ovencitations
- 2011Simulations of an Infrared Composite Curing Processcitations
- 2011Simulations of an Infrared Composite Curing Processcitations
- 2011Infrared curing simulations of liquid composites moldingcitations
- 2011Infrared curing simulations of liquid composites moldingcitations
- 2010Comparaison des cinétiques de réaction de la résine RTM6 à l'aide des diagrammes TTTcitations
- 2010Optimisation de la résistance au cisaillement interlaminaire (RCIL) des matériaux composites fabriqués par LRI en fonction des paramètres de fabricationcitations
- 2010Evolution de la microstructure et influence de la pollution atmosphérique lors de la mise en oeuvre d'une résine thermodurcissable
Places of action
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article
A comparative study of the crystallinity of Polyetheretherketone by using density, DSC, XRD, and Raman spectroscopy techniques
Abstract
International audience ; A comparative study of the crystallinity of Polyetheretherketone by using density, DSC, XRD, and Raman spectroscopy techniques.In this work, the microstructure of Polyetheretherketone is first analyzed with usual techniques such as density, Differential Scanning Calorimetry, X-ray Diffraction, and secondly, compared with Raman Spectroscopy. Assessing the degree of crystallinity of PEEK is challenging because of the different interpretation of the crystallinity according to each technique. The density measurement gives the highest most trusted absolute uncertainty for the degree of crystallinity, around 4%, compared to the other techniques. The Differential Scanning Calorimetry, usually used by the polymer community, overestimates up to 18% the degree of crystallinity due to a competitive phenomenon between crystallization and melting of PEEK over the same temperature range, and a fast crystallization. When Analyzing the X-ray Diffraction data, the degree of crystallinity is underestimated up to 11% as a consequence of the broad amorphous halo. Lastly, our investigation proves that Raman microspectroscopy is appropriate to determine the local crystallinity on the sample surface and compares 18 indicators in the same study. The 1651band shift has the highest correlation coefficient of 0.92 with the degree of crystallinity determined by density. This work attempts to correlate the results of degree of crystallinity of PEEK obtained by these four techniques in order to establish the best evaluation of this fundamental property for numerous applications.