The internal structure of materials. Microfocus Computer Tomography. To identify and quantify internal damage and internal structures and to evaluate the production processes of advanced materials. X-ray intensity profile measurements are computer processed by means of reconstruction algorithms to produce an image representing a two-dimensional slice, or plane, through the material or part investigated with X-rays. Importantly, each point of the slice corresponds to the material density. A high-resolution image may be reconstructed and defects/details in the order of 10 µm can be detected with microfocus computer tomography. Images of contiguous planes can be stacked to form a three-dimensional (3D)-image of a section, or, if the entire part has been scanned, a full volumetric image can be performed. From these 3D-image data, special application software can be developed to find part boundaries and create CAD models of the entire part or portions thereof. Besides the support for manufacturing operations (CAD,CAM,CAE) the computer tomography technology can also provide quantitative non-destructive data for defect or structural characterization. For the latter the micro-CT is implemented within the research on light-metals, plastics, ceramics and their composites, for microelectronic devices, to characterise the porosity/permeability and internal structure of hydrocarbons (oil and gas) reservoir rocks, for archaeological findings, medical applications and argicultural research. Take a look at the µCT equipment : SkyScan 1072 system   AEA Tomohawk system

Downloads Presentations from the seminars : X-ray microfocus computed tomography in materials research 2003 Introduction Quantitative characterization of the pore network and soil structure using microfucus X-ray computed tomography Geometrical Characterization of 3-D Warp-Interlaced Fabrics Use of X-ray microfocus computed tomography in endodontic research Characterization of the hydration of a clay pellet/powder mixture by means of µCT Analysis of Moisture Flow in Porous Building Materials Using X-ray Radiography 2007 Characterization of porous scaffold materials for bone tissue engineering In situ loading cell for microCT Geometrical Characterization of 3-D Warp-Interlaced Fabrics Combination of Dual Energy Microfocus Computed Tomography and Petrography for Objective 3D Reservoir Characterization Optimising X-ray computer tomography images with a CT-simulator Ellipsoid tessellation algorithm for modelling fruit microstructure Microscale modelling of gas transport in pears 2009 Micro-CT symposium 2009_Dominique Bernard (107Mb) High resolution X-ray-CT for the characterisation of polymer composites Application of X-ray micro-computed tomography to food products - a study of sugar-snap cookie texture Micro-CT imaging, 3D image analysis and in-situ compressive loading to quantify the mechanical behaviour of porous structures Observation of the failure mechanism of brick masonry doublets with cement and lime mortars by X-ray CT

 

Copyright ©1999, Katholieke Universiteit Leuven Information provider: K.U.Leuven, Department MTM Page maintenance: Johan Vanhulst Comments on the contents: Martine Wevers Last modified: 25-09-2009