"Thermodynamic Modeling of Microstructure Evolution in Nanocomposites"@en . . "2012-03-31+01:00"^^ . "Termodynamick\u00E9 modelov\u00E1n\u00ED v\u00FDvoje mikrostruktury v nanokompozitech."@cs . . "0"^^ . "2010-05-01+01:00"^^ . "V\u00FDvoj modelu tlust\u00E9ho rozhran\u00ED pro efektivn\u00ED popis segregace a ta\u017Een\u00ED p\u0159\u00EDm\u011Bs\u00ED migruj\u00EDc\u00EDm rozhran\u00EDm. Roz\u0161\u00ED\u0159en\u00ED st\u00E1vaj\u00EDc\u00EDch model\u016F r\u016Fstu zrn a hrubnut\u00ED precipit\u00E1t\u016F o efekty segregace a ta\u017Een\u00ED p\u0159\u00EDm\u011Bs\u00ED. Aplikace roz\u0161\u00ED\u0159en\u00FDch model\u016F na nanokompozity."@cs . "1"^^ . . . "1817"^^ . . . . "nanocomposite; microstructure stability; modelling; thermodynamics"@en . "The microstructure stability of nanocomposites at elevated temperatures seems to be the most critical problem for their mechanical properties. The driving force for grain growth as well as for coarsening of the precipitate microstructure is extremely high, which causes a structure evolution at temperatures much lower than in standard structure materials. Several attempts have been made to stabilize the grain structure e.g. by decreasing the grain boundary energy by intensive segregation or to prohibit the precipitate coarsening by a significant narrowing of the precipitate size distribution or by a significant decrease of the concentration of an element, contained in the precipitate, in the matrix. The application of the Onsager\u2019s thermodynamic extremal principle, formulated in discrete parameters, seems to be a handy tool for development of models for the microstructure evolution in complex nanosystems. The main goal of this project is to develop models by application of the thermodynamic e"@en . . "917"^^ . "10"^^ . . . "10"^^ . . . "0"^^ .