A novel method for the preparation of porous zirconia ceramics with multimodal pore size distribution |
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| Affiliation: | 1. Department of Inorganic Chemistry, Institute of Chemical Technology Prague, Technicka 5, 166 28 Prague 6, Czech Republic;2. Department of Physical Chemistry, Institute of Chemical Technology Prague, Technicka 5, 166 28 Prague 6, Czech Republic;3. Department of Condensed Matter Physics, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 121 16 Prague 2, Czech Republic;1. Department of Earth and Environmental Sciences, KU Leuven, Celestijnenlaan 200e – Bus 2410, BE-3001 Heverlee, Belgium;2. Institute for Environment, Health and Safety, Belgian Nuclear Research Centre (SCK?CEN), Boeretang 200, BE-2400 Mol, Belgium;3. Department of Hydrology and Hydraulic Engineering, Vrije Universiteit Brussel, Pleinlaan 2, BE-1050 Brussels, Belgium;4. NAOC Ltd – Nigerian Agip Oil Company, Nigeria |
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| Abstract: | This work presents a new route of processing porous ceramic materials by vacuum induction melting of metallic ternary alloys from the system Ni–Zr–Y. Following internal oxidation results in an interpenetrating network of nickel and oxide phase consisting of yttria and zirconia. After dissolution of the metallic nickel matrix the oxide phase remains as a stable porous ceramic material with a multimodal pore size distribution. The porosity, pore size distribution and specific surface area can be controlled by alloy composition, solidification conditions and oxidation parameters. |
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| Keywords: | Zirconia YSZ Porous ceramic Multimodal Internal oxidation |
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