Distribution of components of binary metal melt during exposure in capillaries of complex shape
N.P. Uglev1, S.N. Uglev2
1 Perm National Research Polytechnic University
2 LLC «Information Technologies-Volga region»
DOI: 10.26456/pcascnn/2025.17.221
Original article
Abstract: The results of several different experiments on the study of the process of stratification and diffusion of components of a binary tin-lead metal melt located in «capillaries» of a non-wettable material and complex shape are presented. The diffusion process was studied with the direct mutual dissolution of pure initial components from the «lead below, tin above» state in cells that allow lead atoms to spread both upward and downward in the volume of liquid tin. The «stratification» experiment was carried out in a flat capillary with an internal defect included, which made it possible to create a transverse cavity up to 0,5 mm deep in the lower part of the wide face of the sample, completely overlapping the width of one of the sample planes. The quantitative analysis of the composition of the samples was carried out by the X-ray-fluorescence method according to a pre- constructed calibration scale. In the metal melt, experimental results made it possible to reveal the existence of a second mass transfer mechanism, in addition to diffusion, consisting in the flow of lead along the boundary between the liquid sample and the non-wettable wall of the «capillary». The results of the diffusion experiments fully correspond to the data on stratification in a planar capillary, as well as to previous studies.
Keywords: metal melt, stratification, diffusion, second mechanism of mass transfer in metal melts, interfacial flow
- Nikolai P. Uglev – Ph. D., Associate Professor, Chemical technology Department, Perm National Research Polytechnic University
- Sergei N. Uglev – General Director, LLC «Information Technologies-Volga region»
For citation:
Uglev N.P., Uglev S.N. Raspredelenie komponentov binarnogo metallicheskogo rasplava pri vyderzhke v kapillyarakh slozhnoj formy [Distribution of components of binary metal melt during exposure in capillaries of complex shape], Fiziko-khimicheskie aspekty izucheniya klasterov, nanostruktur i nanomaterialov [Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials], 2025, issue 17, pp. 221-230. DOI: 10.26456/pcascnn/2025.17.221. ⎘
Full article (in Russian): download PDF file
References:
1. Gavrilin I.V., Frolova T.B., Zakharov V.P. O likvatsii v zhidkikh evtekticheskikh splavakh [On liquation in liquid eutectic alloys], Izvestiya AN SSSR. Seriya Metally [Proceedings of the USSR Academy of Sciences. Metals], 1984, no. 3, pp. 191-193. (In Russian).
2. Gavrilin I.V. Sedimentatsionnyj eksperiment pri izuchenii zhidkikh splavov [Sedimentation experiment in the study of liquid alloys], Izvestiya AN SSSR. Seriya Metally [Proceedings of the USSR Academy of Sciences. Metals], 1985, no. 2, pp. 66-73. (In Russian).
3. Bunin K.P. K voprosu o stroenii metallicheskikh evtekticheskikh rasplavakh [On the structure of metallic eutectic melts], Izvestiya AN SSSR. Otdelenie tekhnicheskikh nauk [Proceedings of the USSR Academy of Sciences. Department of Technical Sciences], 1946, no. 2, pp. 305-310. (In Russian).
4. Korsunskij V.I., Naberukhin Yu.I. O vliyanii tsentrifugirovaniya na geterogennoe stroenie metallicheskikh rasplavov evtekticheskogo tipa [On the influence of centrifugation on the heterogeneous structure of eutectic metal melts], Izvestiya AN SSSR. Seriya Metally [Proceedings of the USSR Academy of Sciences. Metals], 1973, no. 5, pp. 182-187. (In Russian).
5. Landau L.D., Lifshits E.M. Teoreticheskaya fizika, Tom V. Statisticheskaya fizika, Chast’ 1 [Theoretical Physics, vol. 5: Statistical Physics, Part 1], 5th ed. Moscow, FIZMATLIT Publ., 2002, 616 p. (In Russian).
6. Novokhatsky I.A. O poyavlenii strukturnoj mikroneodnorodnosti zhidkikh metallov v poverkhnostnykh yavleniyakh [On the emergence of structural microheterogeneity of liquid metals in surface phenomena], Zhurnal fizicheskoj khimii [Russian Journal of Physical Chemistry A], 1986, vol. 60, no. 9, pp. 2256-2261. (In Russian).
7. Kumar R. Clusters in liquid metals, Contemporary Physics, 1969, vol. 10, issue 1, pp. 49-58. DOI: 10.1080/00107516908204562.
8. Vertman A.A. K probleme metallicheskikh rasplavov [On the problem of metal melts], Fundamental'nye issledovaniya fizikokhimii metallicheskikh rasplavov: pamyati akademika A.M. Samarina [Fundamental research on the physicochemistry of metallic melts: in memory of academician A.M. Samarin], ed. dy N.P. Lyakishev. Мoscow, Academkniga Publ., 2002, pp. 207-214. (In Russian).
9. Uglev N.P., Uglev S.N. Sverkhtekuchest' na mezhfaznoj granitse zhidkogo metalla i tverdogo tela [Superfluidity at the interface between a liquid metal and a solid], Kondensirovannye Sredy i Mezhfaznye Granitsy [Condensed Matter and Interphases], 2014, vol. 16, no. 4, pp. 503-512. (In Russian).
10. Uglev N.P., Uglev S.N. Differential experiment to study the diffusion of lead in liquid tin, Russian Journal of Physical Chemistry A, 2023, vol. 97, issue 11, pp. 2379-2383. DOI: 10.1134/S0036024423110328.
11. Uglev N.P., Busov N.S., Uglev S.N. Pryamoe i «obratnoe» rassloenie binarnykh metallicheskikh rasplavov v kapillyarakh [Direct and «reverse» stratification of binary metal melts in capillaries], Rasplavy [Melts], 2021, no. 2, pp. 137-145. (In Russian).
12. Pavlov V.V. O «krizise» kineticheskoj teorii zhidkosti i zatverdevaniya (neobkhodimoe izmenenie traditsionnoj molekulyarnoj modeli zhidkosti i tverdogo tela) [On the «crisis» of the kinetic theory of liquid and solidification (a necessary change in the traditional molecular model of liquid and solid)]. Ekaterinburg, Ural State Mining and Geological Academy Publ., 1997, 392 p. (In Russian).
13. Denisov V.M.., Pingin V.V., Antonova L.T. et al. Alyuminij i ego splavy v zhidkom sostoyanii [Aluminum and its alloys in liquid state]. Ekaterinburg, Ural Branch of the Russian Academy of Sciences Publ., 2005, 265 p. (In Russian).
14. Bejlin A.Yu. O stroenii chistykh zhidkostej i mekhanizme ikh formirovaniya pri plavlenii [On the structure of pure liquids and the mechanism of their formation during melting], Bashkirskij khimicheskij zhurnal [Bashkir Сhemical Journal], 2001. vol. 8, no. 2, pp. 23-31. (In Russian).
15. Uglev N.P Issledovanie mekhanizma rassloeniya metallicheskikh rasplavov v kapillyarakh spetsial'noj formy [Study of the mechanism of stratification of metal melts in capillaries of a special shape]. Vestnik Permskogo natsional'nogo issledovatel'skogo politekhnicheskogo universiteta. Khimicheskaya tekhnologiya i biotekhnologiya [Bulletin of Perm National Research Polytechnic University. Chemical technology and biotechnology], 2012, no. 13, pp. 7-12. (In Russian).
16. Uglev N.P. Mekhanizm chastichnogo rassloeniya metallicheskikh rasplavov v kapillyarakh [Mechanism of partial metal melt stratification in capillars], Fiziko-khimicheskie aspekty izucheniya klasterov, nanostruktur i nanomaterialov [Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials], 2013, issue 5. pp. 343-352. (In Russian).