Morpho-topological volume analysis of porous materials for nuclear applications
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Romeu Pieritz
, José Spino , Pavel Vladimirov und Claudio Ferrero
Abstract
The filtered medial line operator is a methodological tool for the morphological and topological analysis of reconstructed samples exhibiting either a porosity network or a granular structure such as bead packs. An application example of this methodology is the evaluation of the pore structure and the derived topological parameters of nanocrystalline 4Y-ZrO2 specimens simulating the high burn-up structure of UO2 fuel. The data indicate the absence of percolation paths at the experimental resolution, which is a beneficial property in terms of retaining fission gasses during the in-pile operation of the fuel. Furthermore, the analysis revealed a tendency for pore coalescence, which could explain the departure from the ideal behaviour of some physical properties typical of material matrices with a population of merely spherical pores. The same analytical tool is also used to characterise the porosity network created by gas bubbles in neutron irradiated beryllium samples, a material meant to be used for the blanket of the forthcoming generation of Tokamak fusion reactors. In particular, the preliminary results of the quantitative analysis performed on the porosity of the beryllium matrix as well as the initial investigation of its percolation properties are reported.
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© 2012, Carl Hanser Verlag, München
Artikel in diesem Heft
- Contents
- Contents
- Editorial
- Exploiting Contrast with Tomography
- Original Contributions
- 3D imaging of complex materials: the case of cement
- Neutron Bragg-edge mapping of weld seams
- 3D image analysis and stochastic modelling of open foams
- In-situ X-ray microtomography study of the movement of a granular material within a die
- Synchrotron and neutron laminography for three-dimensional imaging of devices and flat material specimens
- Numerical correction of X-ray detector backlighting
- X-ray phase contrast and fluorescence nanotomography for material studies
- Estimation of the probability of finite percolation in porous microstructures from tomographic images
- Imaging of grain-level orientation and strain in thicker metallic polycrystals by high energy transmission micro-beam Laue (HETL) diffraction techniques
- Three-dimensional morphology and mechanics of bone scaffolds fabricated by rapid prototyping
- Fatigue induced deformation of taper connections in dental titanium implants
- Beyond imaging: on the quantitative analysis of tomographic volume data
- Damage fluctuations in creep deformed copper studied with synchrotron X-ray microtomography
- Neutron strain tomography using Bragg-edge transmission
- Three-dimensional registration of tomography data for quantification in biomaterials science
- Morpho-topological volume analysis of porous materials for nuclear applications
- People
- Professor Dr. rer. nat. Richard Wagner
- DGM News
- DGM News
Artikel in diesem Heft
- Contents
- Contents
- Editorial
- Exploiting Contrast with Tomography
- Original Contributions
- 3D imaging of complex materials: the case of cement
- Neutron Bragg-edge mapping of weld seams
- 3D image analysis and stochastic modelling of open foams
- In-situ X-ray microtomography study of the movement of a granular material within a die
- Synchrotron and neutron laminography for three-dimensional imaging of devices and flat material specimens
- Numerical correction of X-ray detector backlighting
- X-ray phase contrast and fluorescence nanotomography for material studies
- Estimation of the probability of finite percolation in porous microstructures from tomographic images
- Imaging of grain-level orientation and strain in thicker metallic polycrystals by high energy transmission micro-beam Laue (HETL) diffraction techniques
- Three-dimensional morphology and mechanics of bone scaffolds fabricated by rapid prototyping
- Fatigue induced deformation of taper connections in dental titanium implants
- Beyond imaging: on the quantitative analysis of tomographic volume data
- Damage fluctuations in creep deformed copper studied with synchrotron X-ray microtomography
- Neutron strain tomography using Bragg-edge transmission
- Three-dimensional registration of tomography data for quantification in biomaterials science
- Morpho-topological volume analysis of porous materials for nuclear applications
- People
- Professor Dr. rer. nat. Richard Wagner
- DGM News
- DGM News