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

测量固体表面和界面能的新技术的发展

• 批准号: 9713949
• 负责人: David Dillard
• 金额: $ 25万
• 依托单位: Virginia Polytechnic Institute and State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-01-01 至 2003-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9713949&HistoricalAwards=false
• 关键词: Development; Novel; Techniques; Measure; Surface

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.

将研究一种精确测量任意材料系统之间界面能的新技术。该技术依靠软结构（弯曲的松紧带或加压泡罩）进行测量，而不是常用的软材料。与刚性基底接触的弯曲松紧带的解决方案将被修改，以考虑由弱界面吸引力引起的扰动。我们将构建和测试配置的实验性大型原型，以评估技术并验证数学模型。小型原型将与从 Johnson-Kendall-Roberts (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。