Влияние процессов микросегрегации на формирование периодических примесных сверхструктур в бинарных сплавах | Zendy

А.А. Чеврычкина | Zendy; А.Л. Корженевский | Zendy

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Влияние процессов микросегрегации на формирование периодических примесных сверхструктур в бинарных сплавах

Author(s) -

А.А. Чеврычкина,

А.Л. Корженевский

Publication year - 2021

Publication title -

физика твердого тела

Language(s) - English

Resource type - Journals

eISSN - 1726-7498

pISSN - 0367-3294

DOI - 10.21883/ftt.2021.10.51411.094

Subject(s) - impurity , materials science , crystallization , trapping , diffusion , phase (matter) , chemical physics , jump , crystallography , condensed matter physics , chemistry , thermodynamics , physics , ecology , organic chemistry , quantum mechanics , biology

The influence of the trapping of mobile impurity atoms by immobile defects on superstructures is analyzed. Superstructures are formed as a result of solid-solid phase transitions like the directional crystallization. A capillary wave model was used for the analysis. It was shown that the conditions for the appearance of periodic superstructures are facilitated when the time of the diffusion jump of impurity atoms is much shorter than the characteristic time of their segregation at defects.

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