Звіт по науково-дослідній роботі. Махлайчук Віктор Миколайович. Дослідження термодинамічних, критичних та кінетичних властивостей рідких металів та їх сплавів.

Registration Number

0221U102406, 0118U000202 , R & D reports

Title

Investigation of thermodynamic, critical and kinetic properties of liquid metals and their alloys.

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Head

Makhlaichuk Victor M, Кандидат фізико-математичних наук

Registration Date

01-02-2021

Organization

Odessa I. I. Mechnikov National University

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The proposed formula for shear viscosity of argon-like liquids successfully describes the shear viscosity of liquid metals (alkaline, transition, post-transition). The accuracy of reproduction of experimental data is (93-95)%. It is determined that thermal motion in different liquid metals is a superposition of two components: 1) circulatory motion of small groups of molecules (ions), i.e. nanoscale motion, and 2) vortex motion generated by hydrodynamic fluctuations on mesoscale; the self-diffusion coefficient in liquid metals is the sum of two components: one caused by chaotic circulatory motions of the immediate environment and the other caused by vortex motions in the field of thermal hydrodynamic fluctuations. The contributions of the collective drift of ions in the field of the thermal hydrodynamic fluctuations reach (20 - 25)% of the total value of the self-diffusion coefficient. The liquid-liquid coexistence curve and the parameters of the critical point of the Bi-Ga melt are determined: хc = 38.50.5 at.% Ga and Тc = 4951.5 K. The critical index =0.350.03 and the critical amplitude В0=2.40.2 are determined. It is established that the geometry of the sample significantly affects the mixing process.  

Product Description

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Makhlaichuk Pavel V
Panchenko Dmitry Yu.
Rogovskaya Ema T
Semenov Andrey K
Sklyarchuk Vasil M
Shapovalov Igor P

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2021-02-01