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3D Microstructure Modeling of Porous Metal Filters

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    0380636 - ÚCHP 2013 CH eng J - Journal Article
    Hejtmánek, Vladimír - Čapek, M.
    3D Microstructure Modeling of Porous Metal Filters.
    Metals. Roč. 2, č. 3 (2012), s. 344-352. ISSN 2075-4701.
    [International Conference on Porous Metals and Metallic Foams /7./. Busan, 18.09.2011-21.09.2011]
    R&D Projects: GA ČR(CZ) GAP204/11/1206; GA ČR GA203/09/1353
    Institutional support: RVO:67985858
    Keywords : porous metal filter * stochastic reconstruction * microstructural descriptors
    Subject RIV: CF - Physical ; Theoretical Chemistry

    The contribution presents a modified method of stochastic reconstruction of two porous stainless-steel filters. The description of their microstructures was based on a combination of the two-point probability function for the void phase and the lineal-path functions for the void and solid phases. The method of stochastic reconstruction based on simulated annealing was capable of reproducing good connectivity of both phases, which was confirmed by calculating descriptors of the local porosity theory. Theoretical values of permeability were compared with their experimental counterparts measured by means of quasi-stationary permeation of four inert gases.
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