Abstract
The experiments show that the alloying liquid In with only (0.1–0.5) at% Ti dramatically reduces the equilibrium contact angle Θ ∞ formed by In on the surface of CaF2. The aim of this paper is to clarify whether this practically important and conceptually challenging effect can be explained solely by Ti adsorption at the F-terminated solid–liquid interface without resorting to any other Ti-induced effect. The combination of ab initio calculations and regular solution approximation was proposed for finding the binding energy, ΔE Ti of Ti adatom with the interface “CaF2/liquid solutions In–Ti.” With thus obtained ΔE Ti=1.16 eV, we calculated from the Shishkovsky isotherm the reduction in the solid–liquid interface energy, Δγ SL induced by Ti adsorption from liquid In with various Ti concentration, C. It was found that Δγ SL(C) dependence demonstrated close inverse correspondence with Θ ∞(C) and that the theory fitted very well all available experimental data on the concentration and temperature dependence of Δγ SL. It was concluded that the Ti adsorption effect is large enough to account for the observed wetting improvement. The proposed multiscale modeling approach to the role of adsorption in wetting can be applied also to other nonreactive systems “liquid metal–ceramics” where the substrate determines the surface density of the adsorption sites for the active element.
Similar content being viewed by others
References
N. Eustathopoulos, Curr. Opin. Solid State Mater. Sci. 9, 152 (2005)
E. Saiz, R. Cannon, A. Tomsia, Acta Mater. 48, 4449 (2000)
V. Naidich, Surface Properties of Melts and Solids and Their Use in Materials Science (Naukova Dumka, Kiev, 1991), Chap. 8, p. 120 (in Russian)
N. Froumin, S. Barzilai, M. Aizenshtein, M. Lomberg, N. Frage, Mater. Sci. Eng. A 495, 181 (2008)
S. Barzilai, N. Argaman, N. Froumin, D. Fuks, N. Frage, Surf. Sci. 603, 2096 (2009)
J. Howie, Interfaces in Materials (Wiley Interscience, New York, 1997)
A. Adamson, Physical Chemistry of Surfaces (Wiley Interscience, New York, 1979)
S. Barzilai, N. Argaman, N. Froumin, D. Fuks, N. Frage, Surf. Sci. 602, 1517 (2008)
Y.V. Nikolaenko, G.I. Batalin, E.A. Beloborodova, Yu.V. Vorobei, V.S. Zhuravlev, Zh. Fiz. Khim. 59, 728 (1985) (in Russian)
W. Kohn, P. Vashishta, in Theory of the Inhomogeneous Electron Gas, ed. by B.I. Lundqvist, N.H. March (Plenum, New York, 1983), p. 79
W. Kohn, A.D. Becke, R.G. Parr, J. Phys. Chem. 100, 12974 (1996)
N. Argaman, G. Makov, Am. J. Phys. 68, 69 (2000)
K. Schwarz, P. Blaha, G.K.H. Madsen, Comput. Phys. Commun. 147, 17 (2002)
S. Cottenier, Density Functional Theory and the Family of (L)APWMethods: A Step-by-Step Introduction, Instituut Voor Kern-en Stralingsfysica (K.U. Leuven, Belgium, 2002). ISBN 90-807215-1-4
J. Desclaux, Comput. Phys. Commun. 1, 216 (1969)
D. Koelling, B.N. Harmon, J. Phys. C, Solid State Phys. 10, 3107 (1977)
E. Hondros, M. Seah, in Physical Metallurgy, Part II, 3rd edn., ed. by R.W. Cahn, P. Haasen (North-Holland Physics, Amsterdam, 1983), pp. 855–932
V. Puchin, A. Puchina, M. Huisinga, M. Reichling, J. Phys., Condens. Matter 13, 2081 (2001)
N. Eustathopoulos, M. Nicholas, B. Drevet, Wettability at High Temperatures: Pergamon Materials Series (Pergamon Press, Elmsford, 1999)
S. Barzilai, M. Aizenshtein, M. Lomberg, N. Froumin, N. Frage, Solid State Sci. 9, 338 (2007)
A. Ubellode, Melting and Crystal Structure (Clarendon Press, London, 1965)
E. Saiz, R. Cannon, A. Tomsia, Acta Mater. 48, 4449 (2000)
E. Saiz, A. Tomsia, Nat. Mater. 3, 903 (2004)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Glickman, E., Fuks, D., Frage, N. et al. Adsorption effect in non-reaction wetting: In–Ti on CaF2 . Appl. Phys. A 106, 181–189 (2012). https://doi.org/10.1007/s00339-011-6546-2
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00339-011-6546-2