. "2013-06-12+02:00"^^ . . "1"^^ . "GAP108/11/1539" . . "0"^^ . . . "http://www.isvav.cz/projectDetail.do?rowId=GAP108/11/1539"^^ . . "Pro r\u016Fzn\u00E9 typy nanokrystalick\u00FDch materi\u00E1l\u016F, obzvl\u00E1\u0161t\u011B z\u00A0hlediska aplikac\u00ED v\u00A0praxi, jsou kl\u00ED\u010Dov\u00FDmi probl\u00E9my krystalizace, rekrystalizace a teplotn\u00ED stabilita. P\u0159i studiu t\u011Bchto jev\u016F jsou \u010Dasto hled\u00E1ny zvl\u00E1\u0161t\u011B teploty z\u00E1kladn\u00EDch zm\u011Bn, m\u00E9n\u011B je studov\u00E1na kinetika. V\u00A0projektu navrhujeme studovat oboj\u00ED spolu s\u00A0teplotn\u00EDm v\u00FDvojem mikrostruktury pro r\u016Fzn\u00E9 typy nanomateri\u00E1l\u016F s\u00A0reprezentanty vybran\u00FDmi na z\u00E1klad\u011B p\u0159edchoz\u00EDch studi\u00ED a praktick\u00E9ho v\u00FDznamu \u2013 amorfn\u00ED a nanokrystalick\u00E9 tenk\u00E9 vrstvy, nanopr\u00E1\u0161ky a nanotrubky (zejm\u00E9na TiO2) a submikrokrystalick\u00E9 objemov\u00E9 materi\u00E1ly. Z\u00E1kladn\u00ED metodou bude rtg difrakce, zejm\u00E9na za vysok\u00FDch teplot, jako technika, kter\u00E1 je schopna poskytnout \u0159adu informac\u00ED z\u00A0jedin\u00E9ho z\u00E1znamu \u2013 f\u00E1zov\u00E9 slo\u017Een\u00ED, zbytkov\u00E9 nap\u011Bt\u00ED, mikrodeformaci resp. hustotu dislokac\u00ED, velikost krystalit\u016F, texturu, pod\u00EDl krystalick\u00E9 f\u00E1ze- dopln\u011Bn\u00E1 dal\u0161\u00EDmi metodami. Zvl\u00E1\u0161tn\u00ED pozornost bude zam\u011B\u0159ena na studium p\u016Fsoben\u00ED zbytkov\u00E9ho nap\u011Bt\u00ED na krystalizaci vrstev o r\u016Fzn\u00FDch tlou\u0161\u0165k\u00E1ch." . "X-ray diffraction nanocrystalline materials submicrocrystalline metals microstructure thermal stability crystallization"@en . . "Nanocrystalline materials - X-ray characterization of structure and its thermal stability"@en . . . "12"^^ . . "12"^^ . "2013-12-31+01:00"^^ . "The project was focused to the X-ray diffraction study of nanocrystalline materials (in particular, TiO2) and also to development of corresponding experimental methodology with straightforward influence for materials science. Results are published in impacted journals and presented on international conferences."@en . "2014-07-01+02:00"^^ . "2011-01-01+01:00"^^ . . . . . "0"^^ . . "V r\u00E1mci projektu byla studov\u00E1na rtg difrakce r\u016Fzn\u00FDch typ\u016F nanomateri\u00E1l\u016F (zejm\u00E9na TiO2) a rozvinuta pokro\u010Dil\u00E1 metodika rtg m\u011B\u0159en\u00ED a vyhodnocov\u00E1n\u00ED se z\u0159ejm\u00FDm dopadem na sou\u010Dasn\u00E9 materi\u00E1lov\u00E9 v\u011Bdy. Na \u0159e\u0161en\u00ED projektu participovali i studenti (1 diplomov\u00E1 a 1 bakal\u00E1\u0159sk\u00E1 pr\u00E1ce). V\u00FDsledky byly publikov\u00E1ny ve slu\u0161n\u011B impaktovan\u00FDch \u010Dasopisech (6 Jimp). Finan\u010Dn\u00ED k\u00E1ze\u0148 byla na dobr\u00E9 \u00FArovni."@cs . . . "For different kind of nanocrystalline materials the problems of crystallization, recrystallization and thermal stability are key issues, in particular for their practical applications. Usually only transition temperatures are searched rather than kinetics of these phenomena. Both will be studied together with the evolution of microstructure for different nanomaterials with the representatives selected at the beginning on the base of previous studies and also of practical interest \u2013 thin films, nanopowders, nanotubes (titania) and submicrocrystalline bulk materials. Main method will be X-ray diffraction (especially at high temperatures) as a technique providing different kind of information \u2013 phase composition, stress, strain, crystallite size, preferred orientation, crystalline fraction \u2013 \u00A0from a single pattern, complemented by other methods. Special attention will be devoted to study of influence of stress acting in the films with different thickness on their crystallization, influence of stored deformation energy on recrystallization in submicrocrystalline metals."@en . . . "Nanokrystalick\u00E9 materi\u00E1ly - rtg charakterizace struktury a jej\u00ED teplotn\u00ED stability" .