Estimation of the probability of finite percolation in porous microstructures from tomographic images
| Autor: | Alexander Rack, Claudio Ferrero, Joachim Ohser, Jochen Düll, Oliver Wirjadi, Alina Kuznetsova |
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| Přispěvatelé: | Publica |
| Rok vydání: | 2012 |
| Předmět: |
Materials science
Metals and Alloys Mechanics Metal foam Condensed Matter Physics Space (mathematics) Measure (mathematics) Physics::Geophysics Quantitative Biology::Subcellular Processes Surface tension Percolation Materials Chemistry Physical and Theoretical Chemistry Composite material Porosity Porous medium Mean width |
| Zdroj: | International Journal of Materials Research. 103:184-191 |
| ISSN: | 2195-8556 1862-5282 |
| Popis: | Percolation is an important property of porous media, as it describes the connectivity of pores. We propose a novel, direction-dependent percolation probability which can be efficiently estimated from three-dimensional images obtained by microtomography. Furthermore, in order to describe the penetrability of the pore space by particles of a given diameter or a fluid of a given surface tension, we introduce a percolation probability depending on the width of the pores, from which we may also derive a measure of the mean pore channel width. As application examples, we consider the penetrability of porous beryllium pebbles, the connectivity of pores in arctic firn, the percolation of the pore space of aluminum foams and the mean width of the percolating space between the fibers in a laminate's percolating pore space. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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