Etd
Temperature-Dependence of the Contact Angle of Water on Graphite, Silicon, and Gold
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open in viewerThe temperature dependence of the contact angle of water on graphite, silicon and gold was investigated under various conditions to test the Sharp-Kink Approximation. Despite correctly predicting the contact angle at room temperature, the ideal Sharp-Kink Approximation was not found to accurately describe the contact angle's temperature dependence. The discrepancies from the predicted contact angle were characterized in terms of a correction H(T) to the liquid-solid surface tension. H(T) was found to be linear in temperature and decreasing, and is consistent with electrostatic charge effects.
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- English
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- etd-062909-113303
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- 2009
- Date created
- 2009-06-29
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