Development of Novel Techniques to Measure Surface and Interfacial Energies of Solids

本文将研究一种精确测量任意材料系统间界面能的新技术。该技术依靠软结构（弯曲弹性材料或加压泡罩）进行测量，而不是常用的软材料。与刚性基材接触的弯曲弹性材料的解将被修改，以考虑弱界面吸引力引起的扰动。为了评估技术和验证数学模型，将构建和测试配置的实验大规模原型。小型原型将与约翰逊-肯德尔-罗伯茨（JKR）技术获得的值进行比较，该技术适用于一些更有限的材料系统。

A new technique to accurately measure interfacial energies between arbitrary materials systems will be studied. The technique relies on a soft structure (a bent elastica or a pressurized blister) for the measurements, instead of the commonly used soft material. Solutions for a bent elastica brought into contact with a rigid substrate will be modified to account for the perturbations which result from weak interfacial attractions. Experimental large-scale prototypes for the configurations well be constructed and tested to evaluate the techniques and validate the mathematical models. Small prototypes will be compared with values obtained from the Johnson-Kendall-Roberts (JKR) technique for some of the more limited materials systems for which this technique is applicable.