Laminate fibre structure characterisation of carbon fibre-reinforced polymers by X-ray scatter dark field imaging with a grating interferometer

Revol, Vincent; Plank, Bernhard; Kaufmann, R.; Kastner, Johann; Kottler, Christian; Neels, Antonia

doi:10.1016/j.ndteint.2013.04.012

Cited by 87 publications

(54 citation statements)

References 28 publications

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“…Recently, X-ray dark field phase contrast imaging has been investigated as a tool for rapid inspection yielding indications of defects or morphological features in polymers (165) and PMC (166,167). Both synchrotron and laboratory X-ray sources can be used (168).…”

Section: Penetrating Radiation Test Methodsmentioning

confidence: 99%

Nondestructive Testing of Polymers and Polymer–Matrix Composites

Brunner

Hack

Neuenschwander

2015

Encyclopedia of Polymer Science and Technology

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Because of their unique properties, polymers and polymer–matrix composites pose both challenges and opportunities for nondestructive testing. The increasing use of these materials creates a demand for nondestructive verification of various properties or specifications, determination of structural integrity, or prediction of service‐life. On the other hand, development of new nondestructive test methods, improved sensitivity, or faster data acquisition and analysis may allow for nondestructive testing applications that hitherto did not seem feasible or economical. This article provides a brief overview of established methods and emerging applications in nondestructive testing of polymers and polymer–matrix composites.

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Section: Penetrating Radiation Test Methodsmentioning

confidence: 99%

Nondestructive Testing of Polymers and Polymer–Matrix Composites

Brunner

Hack

Neuenschwander

2015

Encyclopedia of Polymer Science and Technology

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“…By enabling the measurement of small angle scattering of the X-ray beam the Phase Contrast imaging technology provides an innovative tool to probe the structure and detect efficiently the defects like: porosity, micro-cracks, foreign objects and inclusions, delaminations, resin rich / resin poor areas or cut and wavy fibers. In particular, the method is used for the non-destructive inspection and characterization of composite materials [10,11]. To illustrate the performance of XPCI, Figure 8 shows a comparison between the "conventional" X-ray radiography and the dark field image obtained by XPCI for the detection of micro-cracks induced by an particle impact onto a carbon fiber reinforced polymer (CFR) laminate as more and more used in the new, fueled efficient, generation of airplanes.…”

Section: Xpci Experimentsmentioning

confidence: 99%

“…Finally, Computerized Tomography (CT) techniques could be combined with XPCI to obtain three-dimensional information about the index of refraction and the linear diffusion coefficient. This imaging modality was illustrated [11] and helped to separate the different materials composing the composite object.…”

Section: Xpci Experimentsmentioning

confidence: 99%

High aspect ratio, Large area silicon-based gratings for X-ray phase contrast imaging

Baborowski

Revol

Kottler

et al. 2014

2014 IEEE 27th International Conference on Micro Electro Mechanical Systems (MEMS)

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This paper reports on the latest developments in the manufacturing of high aspect ratio silicon-based gratings used for X-ray phase contrast imaging (XPCI). Gratingbased XPCI provides, in one measurement, unique information about the absorption coefficient, the index of refraction and the microscopic structure of a sample at hard X-ray frequencies. For this reason, XPCI can potentially overcome the limitations of classical absorption-based radiography, notably for weakly absorbing materials. New micro-fabrication processes were developed to manufacture full set of large area and high aspect ratio X-ray gratings with few defects. The complementarity of XPCI with conventional absorption-based radiography was experimentally demonstrated.

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“…As a further analysis tool, directional X-ray dark-field imaging is used in order to reconstruct fibre orientations of micrometer-sized aligned structures which are not resolvable directly [12][13][14]. The method is applicable for the analysis of bones [15][16][17] or the characterisation of fibre alignments in polymers [18][19][20]. An extension of directional dark-field imaging to a 3D analysis of fibre orientations is done by tensor tomography [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Non-Destructive Testing of Archaeological Findings by Grating-Based X-Ray Phase-Contrast and Dark-Field Imaging

et al. 2018

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Abstract:The analysis of archaeological findings reveals the remaining secrets of human history. However, it is a challenging task to investigate and simultaneously preserve the unique remains. Available non-destructive examination methods are limited and often insufficient. Thus, we considered X-ray grating interferometry as a non-destructive and advanced X-ray imaging method to retrieve more information about archaeological findings. In addition to the conventional attenuation image, the differential phase and the dark-field image are obtained. We studied the potential of the scattering-sensitive dark-field and the phase-shift sensitive differential phase image to analyse archaeological findings. Hereby, the focus lies on organic remnants. Usually, the organic materials have vanished due to decomposition processes, but the structures are often preserved by mineralisation and penetration of corrosion products. We proved that the combination of the attenuation and the dark-field image in particular, enables a separation of structural properties for fabric remnants. Furthermore, we achieved promising results for the reconstruction of sub-pixel sized fibre orientations of woven fabric remnants by employing the directional dark-field imaging method. We conclude from our results that a further application of X-ray dark-field imaging on wet organic findings and on the distinction of different types of organic remnants at archaeological findings is promising.

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Laminate fibre structure characterisation of carbon fibre-reinforced polymers by X-ray scatter dark field imaging with a grating interferometer

Cited by 87 publications

References 28 publications

Nondestructive Testing of Polymers and Polymer–Matrix Composites

Nondestructive Testing of Polymers and Polymer–Matrix Composites

High aspect ratio, Large area silicon-based gratings for X-ray phase contrast imaging

Non-Destructive Testing of Archaeological Findings by Grating-Based X-Ray Phase-Contrast and Dark-Field Imaging

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