Autowaves of component concentration under directed crystallization

• Опубліковано в: : Физика низких температур
• Дата: 1998
• Автор: Gus`kov, A.P.
• Формат: Стаття
• Мова: Англійська
• Опубліковано: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 1998
• Теми: Специальный выпуск International Workshop on Low Temperature Microgravity Physics
• Онлайн доступ: https://nasplib.isofts.kiev.ua/handle/123456789/176418
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Autowaves of component concentration under directed crystallization / A.P. Gus`kov // Физика низких температур. — 1998. — Т. 24, № 2. — С. 182-185. — Бібліогр.: 5 назв. — англ.

The occurrence of autowaves at the interface as a result of a first-order phase transition had been examined. The linear analysis of a system of the equations for a liquid which contains two components shows that a phase transition at the interface can give rise to autowaves. A spectrum of these autowaves depends on parameters of the system. For a special case of the system parameters an analysis is made of the dependence of the spectrum of autowaves from a temperature gradient the interface. We show that as a result of a interface instability in the bulk solid phase there are various periodic structures of distribution of the component concentration. Surfaces of equal concentration for the spectra of the autowaves are built. A qualitative and quantitative comparison of the numerical calculations with experimental data is made.