Faculty Advisor

Garcia, Rafael

Abstract

The Cahn wetting theory predicts that, if a liquid does not wet a solid substrate at low temperature, then it will eventually wet at some higher temperature T[subscript w]. This theory has never been verified for polar liquids on solid surfaces, nor near room temperature. Nitrous oxide is polar, with a critical temperature of 36.4?C. We find that nitrous oxide does not wet sapphire below 35?C, making it suitable for studying the Cahn theory for polar liquids near room temperature.

Publisher

Worcester Polytechnic Institute

Date Accepted

January 2006

Major

Physics

Project Type

Major Qualifying Project

Accessibility

Restricted-WPI community only

Advisor Department

Physics

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