Title page for ETD etd-062909-113303

Document Type	thesis
Author Name	Osborne III, Kenneth L
URN	etd-062909-113303
Title	Temperature-Dependence of the Contact Angle of Water on Graphite, Silicon, and Gold
Degree	MS
Department	Physics
Advisors	Dr. Rafael Garcia, Advisor Dr. Stephan A. Koehler, Graduate Committee Rep Dr. Alex A. Zozulya, Graduate Committee Rep
Keywords	wetting transitions water gold graphite silicon contact angle matlab
Date of Presentation/Defense	2009-04-23
Availability	unrestricted
Abstract The 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.
Files	compendium_042109.pdf

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