On the limitations of the applicability of Young’s equations temperature

  • Magomed Pashevich Dokhov Kabardino-Balkarian State Agricultural University named after V. M. Kokov 1“V” Prospekt Lenina, Nalchik 360030, Kabardino-Balkarian Republic, Russian Federation https://orcid.org/0000-0002-3224-9850
Keywords: Surface energy, Interfacial energy, Wetting angle, Nickel, Cobalt, Graphite, Titanium carbide

Abstract

The article uses the thermodynamics of interfacial phenomena to justify the fact that Young’s equations can correctly describe the three-phase equilibrium with any type of interatomic bonds. Wetting, adhesion, dissolution, surface adsorption, and other surface phenomena are important characteristics, which
largely determine the quality and durability of materials, and the development of a number of production techniques, including welding, soldering, baking of metallic and non-metallic powders, etc. Therefore, it is important to study them.
Using experimental data regarding surface energies of liquids (melts) and contact angles available in the literature, we calculated the surface energies of many solid metals, oxides, carbides, and other inorganic and organic materials without taking into account the amount of the interfacial energy at the solid-liquid (melt) interface. Some researchers assumed that in case of an acute contact angle the interfacial energy is low. Therefore, they neglected it and assumed it to be zero.
Others knew that this value could not be measured, that is why they measured and calculated the difference between the surface energy of a solid and the interfacial energy of a solid and a liquid (melt), which is equal to the product of the surface energy of this liquid by the cosine of the contact angle. It is obvious that these methods of determining the surface energy based on such oversimplified assumptions result in poor accuracy.
Through the use of examples this paper shows how the surface energies of solids were previously calculated and how the shortcomings of previous calculations can be corrected

Downloads

Download data is not yet available.

Author Biography

Magomed Pashevich Dokhov, Kabardino-Balkarian State Agricultural University named after V. M. Kokov 1“V” Prospekt Lenina, Nalchik 360030, Kabardino-Balkarian Republic, Russian Federation

Dokhov, DSc in Technical
Sciences, Professor, Department of Technical
Mechanics and Physics, Kokov Kabardino-
Balkarian State Agricultural University, Nalchik,
Kabardino-Balkarian Republic, Russian
Federation; e-mail: innagubachikova@mail.ru

References

Adam N. K. Use of Term “Young’s Equation” for contact angles. Nature. 1957;180(4590): 809-810. https://doi.org/10.1038/180809a0

Naidich Yu. V. Contact phenomena in metallic melts. Kiev: Nauk. Dumka Publ.; 1972. 196 p. (In Russ.) 3. Cermets. Ed. by J. R. Tinklepaugh and W. B. Crandall. New York, Reinhold; London: Chapman and Hall; 1960. 173p.

Vatolin N. A., Ukhov F. V. Vliyanie kremniya na mezhfaznye svoistva malouglerodistoi stali. Smachivaemost’ i poverkhnostnye svoistva rasplavov i tverdykh tel [The effect of silicon on the interfacial properties of mild steel. In: Wettability and surface properties of melts and solids.]. Kiev: Nauk. Dumka Publ.; 1972. p. 186-189. (In Russ.)

Zisman W. A. Relation of the equilibrium contact angle to liquid and solid constitution. Advances in Chemistry. 1964;43: 1-51. https://doi.org/10.1021/ba-1964-0043.ch001

Good J. R., Girifalco L. A. A theory for estimation of surface and interfacial energies. III. Estimation of surface energies of solids from contact angle data. The Journal of Physical Chemistry. 1960;64(5): 561-565. https://doi.org/10.1021/j100834a012

Kingery W. D. Metal-ceramic interactions: IV, Absolute measurement of metal-ceramic interfacial energy and the interfacial adsorption of silicon from iron-silicon alloys. Journal of the American Ceramic Society. 1954; 3 (2): 42-45 . https://doi.org/10.1111/j.1151-2916.1954.tb14002.x

Dokhov M. P., Kokoeva M. N. Interface energy of the several polymer surface with water solution spirituous. Sovremennye Naukoemkie Tekhnologii. 2014;55(9): 64-66. Available at: https://www.elibrary.ru/item.asp?d=22025127 (In Russ., abstract in Eng.)

Dokhov M. P. O svyazi mezhfaznoi energii na granitse razdela tverdoe telo-rasplav s poverkhnostnoi energiei otdel’nykh faz [On the relationship of interphase energy at the solid-melt interface with the surface energy of individual phases]. Uspekhi sovremennogo estestvoznaniya. 2007;10: 85-87. Available at: https://w w w.elibrar y.ru/item.asp?id=9935322 (In Russ.)

Vatolin N. A., Timofeev A. I. Svobodnaya poverkhnostnaya energiya tverdykh kristallicheskikh oksidov [Free surface energy of solid crystalline oxides]. Doklady Akademii Nauk SSSR. 1988;302(2): 358-362. (In Russ.)

Published
2021-06-04
How to Cite
Dokhov, M. P. (2021). On the limitations of the applicability of Young’s equations temperature. Condensed Matter and Interphases, 23(2), 218-222. https://doi.org/10.17308/kcmf.2021.23/3432
Section
Original articles