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Phase contrast micro-tomography and morphological analysis of a short carbon fibre reinforced polyamide

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Title: Phase contrast micro-tomography and morphological analysis of a short carbon fibre reinforced polyamide
Authors: Cosmi, F.1 cosmi@units.it, Bernasconi, A.2, Sodini, N.3
Source: Composites Science & Technology. Jan2011, Vol. 71 Issue 1, p23-30. 8p.
Subjects: Tomography, Carbon composites, Polyamide fibers, Injection molding of plastics, Polymers, Anisotropy
Abstract: Abstract: The mechanical properties of components made of short fibre reinforced composites, generally obtained by injection moulding, are strongly linked to fibre orientation. Therefore, it is of great importance to be able to verify the results of manufacturing process simulations obtained by commercial software. From the experimental point of view, the definition of carbon short fibre structure within a polymeric matrix in a micro-tomography is a non-trivial task, as the X-rays absorption properties of the two phases are very similar. This paper presents how this problem was overcome by using phase contrast imaging techniques. High resolution fibre structure reconstructions could therefore be obtained. The reconstruction of a large sample volume by overlapping of successive tomographies was also discussed. Moreover, this work shows that the anisotropy identification techniques based on morphological parameters, previously introduced by some of the Authors for short glass fibre reinforced polymers, can also be adopted for fibre arrangement identification in this type of materials. [ABSTRACT FROM AUTHOR]
Copyright of Composites Science & Technology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 55502234
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  Data: Phase contrast micro-tomography and morphological analysis of a short carbon fibre reinforced polyamide
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  Data: <searchLink fieldCode="AR" term="%22Cosmi%2C+F%2E%22">Cosmi, F.</searchLink><relatesTo>1</relatesTo><i> cosmi@units.it</i><br /><searchLink fieldCode="AR" term="%22Bernasconi%2C+A%2E%22">Bernasconi, A.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Sodini%2C+N%2E%22">Sodini, N.</searchLink><relatesTo>3</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Composites+Science+%26+Technology%22">Composites Science & Technology</searchLink>. Jan2011, Vol. 71 Issue 1, p23-30. 8p.
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  Data: <searchLink fieldCode="DE" term="%22Tomography%22">Tomography</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon+composites%22">Carbon composites</searchLink><br /><searchLink fieldCode="DE" term="%22Polyamide+fibers%22">Polyamide fibers</searchLink><br /><searchLink fieldCode="DE" term="%22Injection+molding+of+plastics%22">Injection molding of plastics</searchLink><br /><searchLink fieldCode="DE" term="%22Polymers%22">Polymers</searchLink><br /><searchLink fieldCode="DE" term="%22Anisotropy%22">Anisotropy</searchLink>
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  Data: Abstract: The mechanical properties of components made of short fibre reinforced composites, generally obtained by injection moulding, are strongly linked to fibre orientation. Therefore, it is of great importance to be able to verify the results of manufacturing process simulations obtained by commercial software. From the experimental point of view, the definition of carbon short fibre structure within a polymeric matrix in a micro-tomography is a non-trivial task, as the X-rays absorption properties of the two phases are very similar. This paper presents how this problem was overcome by using phase contrast imaging techniques. High resolution fibre structure reconstructions could therefore be obtained. The reconstruction of a large sample volume by overlapping of successive tomographies was also discussed. Moreover, this work shows that the anisotropy identification techniques based on morphological parameters, previously introduced by some of the Authors for short glass fibre reinforced polymers, can also be adopted for fibre arrangement identification in this type of materials. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Composites Science & Technology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.compscitech.2010.09.016
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      – Code: eng
        Text: English
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      – SubjectFull: Carbon composites
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      – SubjectFull: Polyamide fibers
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      – SubjectFull: Injection molding of plastics
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      – SubjectFull: Polymers
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      – SubjectFull: Anisotropy
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              Text: Jan2011
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