. "1"^^ . . . "Basic results of the project are controlled preparation of porous oxides and silicate ceramics with a wide range of porosities and development of systematic methodology allowing to determine microstructural properties of heterogeneous materials. Outputs were published in 13 impacted journals and presented on international conferences. Results extend the knowledge of basic research in this field."@en . "0"^^ . . . . . "0"^^ . . . . . "2015-05-22+02:00"^^ . "26"^^ . "http://www.isvav.cz/projectDetail.do?rowId=GAP108/12/1170"^^ . "26"^^ . "P\u00F3rovitost obecn\u011B sni\u017Euje elastick\u00E9 moduly a tepelnou vodivost keramiky, ale zp\u016Fsob, jak\u00FDm tyto vlastnosti klesaj\u00ED s p\u00F3rovitost\u00ED, je siln\u011B z\u00E1visl\u00FD na mikrostruktu\u0159e, kter\u00E1 je d\u016Fsledkem p\u0159\u00EDpravy keramiky. Tento projekt se zab\u00FDv\u00E1 p\u0159\u00EDpravou, charakterizac\u00ED a modelov\u00E1n\u00EDm por\u00E9zn\u00ED keramiky s dob\u0159e definovan\u00FDmi mikrostrukturami a t\u00EDm p\u0159edv\u00EDdateln\u00FDmi elastick\u00FDmi moduly a tepelnou vodivost\u00ED. Oxidov\u00E1 a silik\u00E1tov\u00E1 keramika (kompozity Al2O3-ZrO2 a keramika na b\u00E1zi kaolinu) budou p\u0159\u00EDpraveny pou\u017Eit\u00EDm t\u0159i r\u016Fzn\u00FDch metod (\u010D\u00E1ste\u010Dn\u00E9 slinov\u00E1n\u00ED, p\u00F3rotvorn\u00E1 \u010Dinidla, nap\u011B\u0148ov\u00E1n\u00ED) v rozsahu p\u00F3rovitosti od t\u00E9m\u011B\u0159 nuly a\u017E k p\u00F3rovitostem p\u0159ekra\u010Duj\u00EDc\u00EDm 70 %. Pro charakterizaci mikrostruktury budou pou\u017Eity, vedle tradi\u010Dn\u00EDch deskriptor\u016F (p\u00F3rovitost, distribuce velikosti p\u00F3r\u016F), deskriptory na b\u00E1zi obrazov\u00E9 anal\u00FDzy obsahuj\u00EDc\u00ED informace o tvaru p\u00F3r\u016F resp. o topologii p\u00F3rov\u00E9ho prostoru. M\u011B\u0159en\u00ED vlastnost\u00ED budou provedena metodou impulzn\u00ED excitace a metodou laser flash. Vhodn\u00E9 vztahy budou vyvinuty a pou\u017Eity k popisu (p\u0159edpov\u011Bdi / prolo\u017Een\u00ED) z\u00E1vislosti vlastnost\u00ED (Youngova modulu, tepeln\u00E9 vodivosti) na p\u00F3rovitosti." . . . "Byly p\u0159ipraveny r\u016Fzn\u00E9 typy keramik (unik\u00E1tn\u011B korundov\u00E9!) s \u0161irokou \u0161k\u00E1lou porozity a s \u0159\u00EDzenou elasticitou a tepelnou vodivost\u00ED. D\u00E1le byla vytvo\u0159ena systematick\u00E1 metodika ke kvantitativn\u00ED charakterizaci mikrostruktury heterogenn\u00EDch materi\u00E1l\u016F. V\u00FDsledky byly publikov\u00E1ny ve 13 impaktovan\u00FDch \u010Dasopisech, p\u0159edneseny na mezin\u00E1rodn\u00EDch konferenc\u00EDch a prohlubuj\u00ED znalostn\u00ED potenci\u00E1l dan\u00E9ho oboru."@cs . "2012-01-01+01:00"^^ . . "Porous Ceramics with Tailored Elasticity and Thermal Conductivity"@en . "2014-12-31+01:00"^^ . "2014-03-31+02:00"^^ . "GAP108/12/1170" . "Por\u00E9zn\u00ED keramika s \u0159\u00EDzenou elasticitou a tepelnou vodivost\u00ED" . . . "Porosity generally reduces the elastic moduli and thermal conductivity of ceramics, but the way how these properties decrease with porosity is strongly dependent on the microstructure resulting from processing. This project concerns the preparation, characterization and modeling of porous ceramics with well defined microstructures and thus predictable elastic moduli and thermal conductivity. Oxide and silicate ceramics (alumina-zirconia composites and kaolin-based ceramics) will be prepared using three different approaches (partial sintering, pore-forming agents, foaming) in a porosity range from almost dense to more than 70 % porous. The microstructural characterization will use, apart from traditional descriptors (porosity, pore size distribution), image-analysis-based descriptors containing information on pore shape or pore space topology. Property measurements will be made via the impulse excitation technique and the laser-flash technique. Appropriate microstructure-property relations for the description (prediction or fitting) of porosity dependences will be developed and used."@en . . . "Porous ceramics elastic moduli thermal conductivity micromechanics"@en .