S. A. Gusev, M. A. Shekhirev, T. V. Safronova, V. I. Putlayev, Z. N. Skvortsova, P. V. Protsenko, “Wetting and spreading of molten NaCl and CaCl<sub>2</sub> over polycrystalline hydroxyapatite”, Mendeleev Commun., 2014, Volume 24, Issue 1,Pages <nobr>12

This article is cited in 4 papers

Communications

Wetting and spreading of molten NaCl and CaCl₂ over polycrystalline hydroxyapatite

S. A. Gusev^a, M. A. Shekhirev^b, T. V. Safronova^b, V. I. Putlayev^b, Z. N. Skvortsova^a, P. V. Protsenko^a

^a Department of Chemistry, M.V. Lomonosov Moscow State University, Moscow, Russian Federation
^b Department of Materials Science, M.V. Lomonosov Moscow State University, Moscow, Russian Federation

Abstract: The contact angles of molten NaCl and CaCl2 on hydroxyapatite (HAp) in air at 866 and 880°C are close to zero. Wettability and the kinetics of spreading in the NaCl/HAp system were not affected by the reaction product presaturation of a melt or by substrate density and roughness; the rate of spreading for NaCl/HAp was described by the De Genes model of viscous dissipation, while it slowed down significantly in case of CaCl2/HAp due to the interfacial reaction resulting in a surface tension gradient.

Language: English

DOI: 10.1016/j.mencom.2013.12.003