Gravitation influence on wetting and capillary phenomena in contact liquid — solid systems
|1Naidich, Yu.V, 1Gab, II, 1Stetsyuk, TV, 2Kostyuk, BD |
1Frantsevich Institute for Problems of Materials Science, National Academy of Sciences of Ukraine, Kyiv, Ukraine
2Frantsevich Institute for Problems of Materials Science , National Academy of Sciences of Ukraine, Kyiv, Ukraine
|Kosm. nauka tehnol. 2013, 19 ;(5):50–55|
|Section: Space Materials and Technologies|
|Publication Language: Russian|
A relationship between wetting contact angle and gravity was investigatied. Lowered and increased (up to 22g) gravitation conditions were simulated in terrestrial conditions. Various «solid — liquid» systems were considered for both low temperature liquids (water, glycerin) and metal melts (tin, gold). It was found that the gravitation level does not influence on the contact angle of wetting solids by liquids.
|Keywords: simulated gravitation, solid-liquid systems, wetting contact angle|
1. Budurov S. I., Petrov P. A., Kovachev P. D. et al. Determination of contact angles in microgravity. "Salyut-6" - "Soyuz". Material sciences and technology. P.64—66 (Nauka, Moscow, 1985) [in Russian].
2. The diagrams of binary metallic systems: in three volumes, Ed. N.P.Ljakishev, Vol.1. 992 p. (Mashinostroenie, Moscow, 1996) (Vols. 1-3; Vol. 1) [in Russian].
3. Najdich Yu.V. Contact phenomena in metallic melts, 196 p. (Nauk. dumka, Kiev, 1972) [in Russian].
4. Naidich Yu.V., Gab I.I., Evdokimov V.A., et al. The fluid surface shape and capillary phenomena under lowered gravity or weightlessness with application to space materials science (powder metallurgy technology: impregnation, liquid-phase sintering; welding, brazing). Space science and technology, 10 (2/3), 59—67 (2004) [in Russian].
5. Najdich Yu. V., Gab I. I., Evdokimov V. A. et al. The shape of the liquid surface, and capillary phenomenon under reduced gravity acceleration. Powder metallurgy, No.3-4, 72—79 (2004) [in Russian].
6. Summ B. D., Gorjunov Ju. V. Physical and chemical bases of wetting and spreading [Fiziko-himicheskie osnovy smachivanija i rastekanija]. 232 p. (Himija, Moscow, 1976) [in Russian].
7. Adamson A. W. Physical chemistry of surfaces. 5th ed., 777 p. (Wiley, NewYork, 1990).
8. Bikerman J. J. Contribution to the thermodynamics of surfaces. 40 p. (Publ. by Author, Cambrige, 1961).
9. Bond W. N. Bubbles and drops and Stokes’ law (Paper 1). Phil. Mag. N 4 (29), 889—898 (1927).
10. Bond W. N., Newton D. A. Bubbles, drops and Stokes’ law (Paper 2). Phil. Mag. N 5 (30), 794—800 (1928).
11. Brutin D., ZhiQuiang, Zhu Ouamar Rahli, et al. Sessile drop in microgravity: creation, contact angle and interface. Microgr. Sci. Technol. 24 (3), 195—202 (2009).
12. Proceedings of the second international congress on surface activity. Vol. III.131 p.(Butterworth, London, 1957).
13. Yixiong Liu, German R. M. Contact angle and solid-liquidvapor equilibrium. Acta Materialia, 44(4), 1657—1663 (1996). 14. Young T. An essay on the cohesion of fluids. Phil. Trans. Roy. Soc. London, 95, 65—87 (1805).