Topic
Sessile drop technique
About: Sessile drop technique is a research topic. Over the lifetime, 2827 publications have been published within this topic receiving 68943 citations.
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TL;DR: In this paper, it was shown that the wettability of diamond can be tailored in a broad range by surface modification via ion bombardment via ion irradiation, and the surface state evolution was monitored in situ with X-ray photoelectron spectroscopy (XPS) and Xray excited Auger electron spectroscope (XAES) using a sessile drop method.
40 citations
TL;DR: In this paper, an eutectic braze on silicon carbide (SiC) was investigated by means of sessile drop method in vacuum at 1400°C for 10 min and the result indicates that the braze exhibits good wettability (contact angle 25°) and adhesion with SiC.
40 citations
TL;DR: In this article, the surface tension in metallic alloy systems is modelled by applying a direct Gibbs energy minimisation technique to the surface monolayer model, and the model results are compared with previously published experimental values for the Bi-Sn system as well as surface tension values determined by the sessile drop method for the ternary Ag-Au-Cu system.
Abstract: The surface tension in metallic alloy systems is modelled by applying a direct Gibbs energy minimisation technique to the surface monolayer model. The model results are compared with previously published experimental values for the Bi–Sn system as well as surface tension values determined by the authors using the sessile drop method for the ternary Ag–Au–Cu system.
40 citations
TL;DR: In this article, the effect of surface roughness on the wettability at a constant Wenzel roughness factor using two kinds of models, the hemisphere close packing model and the hemiround rod close lining model, was investigated.
Abstract: The surface roughness factors, such as the Wenzel roughness factor and so on, are very interrelated to each other. Therefore, it makes a precise discussion difficult on how the surface roughness affects the wettability. We already reported the effect of the surface roughness on the wettability at a constant Wenzel roughness factor using two kinds of models, the hemisphere close packing model and the hemiround rod close lining model. Nevertheless, the pitch is proportional to the height in these models. Therefore, we could not independently discuss the influence of roughness height and roughness pitch on the wettability. We developed our new models which can independently describe the influence of the surface roughness height and the roughness pitch on the wettability. We simulated loose packing sphere models by periodically placing small ball bearings and the loose lining round rod models by winding fine wires. The wettability was measured by the sessile drop method for the non-wetting system using paraffin coated samples and aqueous solutions. These results show that there is a critical pitch which determines the maximum contact angle in both systems. These results can be explained by the ratio of the solid/liquid/vapor and liquid/vapor line length at the three phase line.
40 citations
TL;DR: In this paper, the sessile drop method was used to measure the three phase contact angle between particles and all liquids and compared with the contact angles obtained on the flat glass, made of the same material as the particles.
40 citations