Characterizing microstructures with representative tortuosities Johan Chaniot, Maxime Moreaud, Loïc Sorbier, Pierre Marquet, Jean-Marie Becker and Thierry Fournel Sci. Tech. Energ. Transition, 79 (2024) 31 Published online: 06 June 2024 DOI: 10.2516/stet/2024023