References of "Wevers, Martine"
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See detailContrast-enhanced nanofocus computed tomography for virtual 3D histopathology and morphometric analysis of multiple skeletal tissues
Kerckhofs, Greet ULg; Papantoniou, Ioannis; Sonnaert, Maarten et al

Conference (2013)

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See detailSurface Roughness and Morphology Customization of Additive Manufactured Open Porous Ti6Al4V Structures
Pyka, Grzegorz; Kerckhofs, Greet ULg; Papantoniou, Ioannis et al

in Materials (2013), 6(10), 4737-4757

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See detailHigh-Resolution Microfocus X-Ray Computed Tomography for 3D Surface Roughness Measurements of Additive Manufactured Porous Materials
Kerckhofs, Greet ULg; Pyka, Grzegorz; Moesen, Maarten et al

in ADVANCED ENGINEERING MATERIALS (2013), 15(3), 153-158

Since commercially available profiling systems fail when determining the surface roughness of porous materials, we propose a novel protocol for surface roughness quantification of 3D additive manufactured ... [more ▼]

Since commercially available profiling systems fail when determining the surface roughness of porous materials, we propose a novel protocol for surface roughness quantification of 3D additive manufactured porous structures based on high-resolution microfocus X-ray computed tomography (micro-CT) images. It allows to non-destructively assess the roughness of these porous materials at the outer surface as well as inside the structure. The noise in the images and the spatial image resolution both have a significant effect on the accuracy of the micro-CT-based roughness measurements. Comparing the roughness parameters of flat substrates determined both with commercially available (optical and contact) profiling systems and the micro-CT-based roughness measurement protocol shows that micro-CT can be applied accurately and in a robust manner for surface roughness quantification of 3D additive manufactured porous materials with a micro-scale roughness. Depending on the dimensions of the roughness, the micro-CT acquisition parameters, i.e., frame averaging and spatial image resolution, need to be fine-tuned. Submicron-scale roughness can currently not be quantified. [less ▲]

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See detailX-ray Computed Tomography for Non-Destructive Testing
Wevers, Martine; Kerckhofs, Greet ULg; Pyka, Gregory et al

in Proceedings iCT 2012 (2012)

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See detailHigh-resolution non-destructive 3D quantitative imaging of the cartilage subarchitecture
Kerckhofs, Greet ULg; Sainz, Julie; Wevers, Martine et al

Conference (2012)

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See detailHigh-resolution non-destructive 3D quantitative imaging of the cartilage subarchitecture
Kerckhofs, Greet ULg; Sainz, Julie; Wevers, Martine et al

Conference (2012)

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See detailHigh-resolution micro-CT as a tool for 3D surface roughness measurement of 3D additive manufactured porous structures
Kerckhofs, Greet ULg; Pyka, Grzegorz; Moesen, Maarten et al

in Proceedings iCT 2012 (2012)

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See detailStatistical description of the internal geometry of a polymer textile composite using micro-computed tomography
Vanaerschot, Andy; Cox, Brian; Blacklock, Matthew et al

in Proceedings book European Conference on Composite Materials 2012 (2012)

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See detailContrast-enhanced nanofocus computed tomography: a powerful technique enabling the combined visualization of the tissue architecture of cartilage and bone
Kerckhofs, Greet ULg; Sainz, Julie; Wevers, Martine et al

in Abstract book User Meeting Bruker MicroCT 2012 (2012)

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See detailLiquid detection in confined aircraft structures based on lyotropic percolation thresholds
Pfeiffer, Helge; Heer, Peter; Pitropakis, Ioannis et al

in SENSORS AND ACTUATORS B-CHEMICAL (2012), 161(1), 791-798

In aircraft, aqueous liquids arising from spillage, condensation or rainfall during boarding can result in heavy corrosion of structural parts. This is especially the case for the so-called floor ... [more ▼]

In aircraft, aqueous liquids arising from spillage, condensation or rainfall during boarding can result in heavy corrosion of structural parts. This is especially the case for the so-called floor structures in the passengers cabin. A reliable sensor for detecting aqueous liquids which is interrogated at least on a weekly base, or even more frequently, could help to reduce repair and maintenance costs considerably. An important challenge for the installation of sensors in the floor beam area is the limited space available. Furthermore, the sensor has to cover an extended area. To achieve this target, an organo-ceramic composite was developed containing a conducting compound (conducting ceramic powder) which is embedded in a hydrophilic matrix. The functionality of the sensing material is based on the collapse of percolation conductivity of the composite. When the composite is exposed to aqueous liquids, the conductivity is essentially lost by sorption and swelling of the matrix material. Sorption experiments indicate that the loss of conductivity could be triggered, or at least promoted by a lyotropic glass-rubber transition in the hydrophilic matrix. The applicability of the integral system was shown on lab-scale, and a sensor network is already implemented and tested in an operational commercial airliner. (C) 2011 Elsevier B.V. All rights reserved. [less ▲]

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See detailSurface Modification of Ti6Al4V Open Porous Structures Produced by Additive Manufacturing
Pyka, Grzegorz; Burakowski, Andrzej; Kerckhofs, Greet ULg et al

in ADVANCED ENGINEERING MATERIALS (2012), 14(6), 363-370

Additive manufacturing techniques can be used to produce micro-porous structures with global morphological properties that are highly controlled through robust computer design. Despite these advantages ... [more ▼]

Additive manufacturing techniques can be used to produce micro-porous structures with global morphological properties that are highly controlled through robust computer design. Despite these advantages, most of these techniques still hold several functional constraints, resulting from present technical device limits and consequently the inability to control surface morphology at a microscale level. In this study, a novel protocol for surface modification of 3D titanium alloy-based open porous structures is developed, which applies a combination of chemical etching (CHE) and electrochemical polishing (ECP) using HF-based solutions. This protocol achieves significant and controllable roughness reduction of additive manufactured 3D Ti6Al4V open porous structures. Chemical etching mainly removes the attached powder grains, while ECP further decreases the roughness. In this way the heterogeneity of the strut surface roughness throughout the full 3D structure is effectively removed. [less ▲]

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See detailNovel high-resolution micro-CT based surface roughness measurement protocol for complex porous structures
Kerckhofs, Greet ULg; Pyka, Grzegorz; Moesen, Maarten et al

in Proceedings MetFoam 2011, Hur, B., Kim, S., Hyun, S. (Eds.) (2011)

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See detailMicrostructure, crystalline phases and pore morphology of Onggi
Pontikes, Yiannis; Kerckhofs, Greet ULg; Kim, Ungsoo et al

in Proceedings ECerS XII (2011)

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See detailMicro-CT: a powerful tool for the characterization and evaluation of the bone formatting capacity of calcium phosphate–stem cells tissue engineering constructs
Kerckhofs, Greet ULg; Roberts, Scott J.; Wevers, Martine et al

in Abstract book SkyScan User Meeting 2011 (2011)

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See detailThe use of micro-CT to correlate in-vitro cell behaviour with the surface roughness of Ti6Al4V scaffolds for tissue engineering
Pyka, Grzegorz; Kerckhofs, Greet ULg; Chai, Yoke Chin et al

in Abstract book SkyScan User Meeting 2011 (2011)

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See detailX-rays nanotomography in a scanning electron microscope–capabilities and limitations for materials research
Pyka, Grzegorz; Kerckhofs, Greet ULg; Pauwels, Bart et al

in Abstract book SkyScan User Meeting 2011 (2011)

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See detailCharacterisation of meso-and micro-scale morphological and mechanical properties of surface modified 3D Ti6Al4V open porous structures
Pyka, Grzegorz; Kerckhofs, Greet ULg; Van Bael, Simon et al

in Proceedings of MetFoam 2011 (2011)

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See detailFruit Microstructure Evaluation Using Synchrotron X-Ray Computed Tomography
Verboven, Pieter; Ho, Quang Tri; Herremans, Els et al

in Ajjguilera, JM BarbosaCanovas, GV Simpson, R WeltiChanes, J BermudezAguirre, D (Ed.) FOOD ENGINEERING INTERFACES (2011)

Detailed reference viewed: 15 (5 ULg)