Поверхнева дифузія і фазові переходи в адсорбованих плівках міді на грані (112) вольфраму

Автор(и)

  • A.T. Loburets National University “Yuri Kondratyuk Poltava Polytechnic”, Educational and Scientific Institute of Oil and Gas
  • S.O. Zayika National University “Yuri Kondratyuk Poltava Polytechnic”, Educational and Scientific Institute of Information Technologies and Robotics

DOI:

https://doi.org/10.15407/ujpe67.8.619

Ключові слова:

метали, монокристали, поверхнева дифузiя, адсорбцiя, парорiдинна рiвновага, двовимiрна система, термодинамiчна подiбнiсть

Анотація

Вперше у широкому температурному дiапазонi виконано експериментальне дослiдження парорiдинної рiвноваги у двовимiрнiй (2D) адсорбованiй плiвцi Сu на гранi (112)W. Визначено критичнi характеристики. Встановлено область спiвiснування фаз. Показано, що особливостi фазового переходу “рiдина–газ” у 2D Cu–(112)W є аналогiчними переходам у тривимiрних (3D) системах Rb i Cs. Обговорено причини термодинамiчної подiбностi 2D i 3D металiчних систем. Запропоновано аналiтичнi вирази для апроксимацiї експериментальних даних. Вони визначають межi iснування парорiдинної рiвноваги та дозволяють з високою точнiстю здiйснювати екстраполяцiю в областi критичної та потрiйної точок. Координати точок на рiдиннiй i газовiй вiтках бiнодалей було визначено на основi аналiзу дифузiйно сформованих концентрацiйних профiлiв.

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Опубліковано

2022-12-04

Як цитувати

Loburets, A., & Zayika, S. (2022). Поверхнева дифузія і фазові переходи в адсорбованих плівках міді на грані (112) вольфраму. Український фізичний журнал, 67(8), 619. https://doi.org/10.15407/ujpe67.8.619

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