Contact Angle Measurements and Contact Angle Interpretation. 1. Contact Angle Measurements by Axisymmetric Drop Shape Analysis and a Goniometer Sessile Drop Technique

Langmuir ◽  
1997 ◽  
Vol 13 (10) ◽  
pp. 2880-2894 ◽  
Author(s):  
D. Y. Kwok ◽  
T. Gietzelt ◽  
K. Grundke ◽  
H.-J. Jacobasch ◽  
A. W. Neumann
Keyword(s):  
Contact Angle ◽  
Shape Analysis ◽  
Sessile Drop ◽  
Sessile Drop Technique ◽  
Drop Shape ◽  
Axisymmetric Drop Shape Analysis ◽  
Angle Measurements ◽  
Contact Angle Measurements ◽  
Drop Technique

Sessile-drop contact angle measurements using axisymmetric drop shape analysis

1987 ◽  
Vol 24 (2-3) ◽  
pp. 127-137 ◽  
Author(s):  
J.K. Spelt ◽  
Y. Rotenberg ◽  
D.R. Absolom ◽  
A.W. Neumann
Keyword(s):  
Contact Angle ◽  
Shape Analysis ◽  
Sessile Drop ◽  
Drop Shape ◽  
Axisymmetric Drop Shape Analysis ◽  
Angle Measurements ◽  
Contact Angle Measurements

Contact angle measurements by axisymmetric drop shape analysis and an automated polynomial fit program

1998 ◽  
Vol 143 (2-3) ◽  
pp. 197-210 ◽  
Author(s):  
O.I. del Rı́o ◽  
D.Y. Kwok ◽  
R. Wu ◽  
J.M. Alvarez ◽  
A.W. Neumann
Keyword(s):  
Contact Angle ◽  
Shape Analysis ◽  
Drop Shape ◽  
Axisymmetric Drop Shape Analysis ◽  
Angle Measurements ◽  
Polynomial Fit ◽  
Contact Angle Measurements

scholarly journals Low-bond axisymmetric drop shape analysis for surface tension and contact angle measurements of sessile drops

2010 ◽  
Vol 364 (1-3) ◽  
pp. 72-81 ◽  
Author(s):  
Aurélien F. Stalder ◽  
Tobias Melchior ◽  
Michael Müller ◽  
Daniel Sage ◽  
Thierry Blu ◽  
...  
Keyword(s):  
Surface Tension ◽  
Contact Angle ◽  
Shape Analysis ◽  
Drop Shape ◽  
Axisymmetric Drop Shape Analysis ◽  
Angle Measurements ◽  
Contact Angle Measurements ◽  
Sessile Drops

Characterization of Maleic Acid/Anhydride Copolymer Films by Low-Rate Dynamic Liquid−Fluid Contact Angle Measurements Using Axisymmetric Drop Shape Analysis

Langmuir ◽  
2005 ◽  
Vol 21 (14) ◽  
pp. 6302-6307 ◽  
Author(s):  
Petra Uhlmann ◽  
Sebastian Skorupa ◽  
Carsten Werner ◽  
Karina Grundke
Keyword(s):  
Shape Analysis ◽  
Acid Anhydride ◽  
Drop Shape ◽  
Copolymer Films ◽  
Axisymmetric Drop Shape Analysis ◽  
Angle Measurements ◽  
Contact Angle Measurements ◽  
Rate Dynamic ◽  
Low Rate

scholarly journals The Leaf Wettability of Various Potato Cultivars

Plants ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 504
Author(s):  
Ewa Papierowska ◽  
Jan Szatyłowicz ◽  
Stanisław Samborski ◽  
Joanna Szewińska ◽  
Elżbieta Różańska
Keyword(s):  
Contact Angle ◽  
Sessile Drop ◽  
Leaf Surface ◽  
Solanum Tuberosum L ◽  
Fungal Disease ◽  
Potato Cultivars ◽  
Potato Leaf ◽  
Angle Measurements ◽  
Contact Angle Measurements ◽  
Leaf Wettability

Leaf wettability has an impact on a plant’s ability to retain water on its leaf surface, which in turn has many environmental consequences. In the case of the potato leaf (Solanum tuberosum L.), water on the leaf surface may contribute to the development of a fungal disease. If fungal disease is caused, this may reduce the size of potato harvests, which contribute significantly to meeting global food demand. The aim of this study was to assess the leaf wettability of five potato cultivars (i.e., Bryza, Lady Claire, Rudawa, Russet Burbank, Sweet Caroline) in the context of its direct and indirect impact on potato yield. Leaf wettability was assessed on the basis of contact angle measurements using a sessile drop method with an optical goniometer. For Bryza and Rudawa cultivars, which showed, respectively, the highest and the lowest contact angle values, light microscopy as well as scanning electron microscopy analyses were performed. The results of the contact angle measurements and microscopic image analyses of the potato leaf surfaces indicated that the level of wettability was closely related to the type of trichomes on the leaf and their density. Therefore, higher resistance of the Rudawa cultivar to biotic stress conditions could be the result of the presence of two glandular trichome types (VI and VII), which produce and secrete metabolites containing various sticky and/or toxic chemicals that may poison or repel herbivores.

Wetting and Interfacial Behaviors of Molten Ag, Cu and Ag-28Cu on WC-8Co Cemented Carbide

2016 ◽  
Vol 697 ◽  
pp. 555-560 ◽  
Author(s):  
Hao Fu ◽  
Xiang Zhao Zhang ◽  
Gui Wu Liu ◽  
Zi Wei Xu ◽  
Tie Zheng Pan ◽  
...  
Keyword(s):  
Contact Angle ◽  
Sessile Drop ◽  
Testing Temperature ◽  
Cemented Carbide ◽  
Equilibrium Contact Angle ◽  
Sessile Drop Technique ◽  
Different Temperatures ◽  
Higher Temperature ◽  
Drop Technique ◽  
Scanning Electron

The wetting and spreading of molten Cu, Ag and Ag-28Cu (wt.%) on the WC-Co cemented carbide were investigated by the sessile drop technique at different temperatures, and the interfacial behaviors of the metal/WC-Co couples were analyzed by scanning electron microscopy (SEM) coupled with energy dispersive spectroscopy (EDS). The experimental results showed that the testing temperature and the composition of drop can play a key role in the wetting and spreading, and the good wettability with contact angle of less than 40o can be obtained. Moreover, the strongest interactions can be produced between the molten Cu and the WC-Co substrate at the higher temperature of 1100 oC due to the strong interdiffusion and solid solution between Cu and Co, resulting in the lowest equilibrium contact angle of ~0o. In addition, smooth and clean interfaces, without formation of visible interfacial reaction layer, were observed in all the three wetting systems. This work may also provide guidance to brazing of the cemented carbide.

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