Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Comparable Effects of Adsorption and Line Tension on Contact Angle of a Nucleated Droplet on a Partially Wettable Substrate. / Tatyanenko, Dmitry V.; Shchekin, Alexander K.
в: Interfacial Phenomena and Heat Transfer, Том 5, № 2, 2018, стр. 113-128.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Comparable Effects of Adsorption and Line Tension on Contact Angle of a Nucleated Droplet on a Partially Wettable Substrate
AU - Tatyanenko, Dmitry V.
AU - Shchekin, Alexander K.
PY - 2018
Y1 - 2018
N2 - Thermodynamics of a small sessile droplet on a solid substrate is discussed with a focus on size-dependence of its contact angle. An interface displacement (ID) model is employed to calculate profiles and contact angles of sessile droplets representing, in particular, critical droplets in nucleation on a partially wettable solid substrate. Line-tension and adsorption-related corrections to the contact angle cosine are found within the ID model and illustrated with numeric calculations for a short-range interface potential. The line tension and adsorption effects on the contact angle are shown to be comparable even in the first order in the contact line curvature. For smaller droplets, an intrinsic dependence of the line tension on the contact line curvature also becomes significant for the contact angle.
AB - Thermodynamics of a small sessile droplet on a solid substrate is discussed with a focus on size-dependence of its contact angle. An interface displacement (ID) model is employed to calculate profiles and contact angles of sessile droplets representing, in particular, critical droplets in nucleation on a partially wettable solid substrate. Line-tension and adsorption-related corrections to the contact angle cosine are found within the ID model and illustrated with numeric calculations for a short-range interface potential. The line tension and adsorption effects on the contact angle are shown to be comparable even in the first order in the contact line curvature. For smaller droplets, an intrinsic dependence of the line tension on the contact line curvature also becomes significant for the contact angle.
KW - гетерогенная нуклеация
KW - частичное смачивание
KW - краевой угол
KW - линейное натяжение
KW - адсорбция
U2 - 10.1615/InterfacPhenomHeatTransfer.2018025483
DO - 10.1615/InterfacPhenomHeatTransfer.2018025483
M3 - Article
VL - 5
SP - 113
EP - 128
JO - Interfacial Phenomena and Heat Transfer
JF - Interfacial Phenomena and Heat Transfer
SN - 2169-2785
IS - 2
ER -
ID: 23912965