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Назив: Application of Minkowski layer for intergranular fractal surfaces of multiphase active microalloyed and alloyed aluminium-silicate ceramics
Аутори: Purenovic, Jelena
Randjelovic M.
Matovic, Branko
Purenovic M.
Датум издавања: 2015
Сажетак: © 2015 Elsevier B.V. All rights reserved. Microalloyed and alloyed aluminium-silicate ceramics represents multiphase and multifunctional solid-solid system. The microstructure of aluminium-silicate ceramics matrix is arranged with favorable relationship between crystallinity and amorphousness. Numbered physical processes and interactions take place in very complex intergranular and interphase areas, making new boundaries and regions with fractal nature. Fractal nature of grains contours, macro, mezzo and micro pores and nanostructure phases at grain boundaries make this ceramics an active dielectric material. The synergistic effect of additives, dislocations and impurities leads to dislocations movement at grain boundaries and fragmentation of existing grains in a large number of micrograins with distinct fractal nature. Hence, permanent change of micromorphology occurs in intergranular area. Fractal analysis of intergranular microstructure has included application of Minkowski layer, correlated with fractal dimension. It represents convex layer of grains contour roughness and irregularity, determined in accordance with grain contours fractality. The introduction of fractal microstructure analysis allows better interpretation of many physical and physico-chemical processes, bearing in mind that Minkowski layer defines grains contact probability.
URI: https://scidar.kg.ac.rs/handle/123456789/12044
Тип: article
DOI: 10.1016/j.apsusc.2015.01.162
ISSN: 0169-4332
SCOPUS: 2-s2.0-84924181501
Налази се у колекцијама:Faculty of Technical Sciences, Čačak

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