GOALI: Collaborative Research: Tribology of Nanocomposites

目标：合作研究：纳米复合材料的摩擦学

• 批准号: 0219889
• 负责人: Wallace Sawyer
• 金额: $ 19.99万
• 依托单位: University of Florida
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-01-15 至 2005-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0219889&HistoricalAwards=false
• 关键词: GOALI; Collaborative; Research; Tribology; Nanocomposites

Abstract: GOALI Tribology of Nanocomposites This collaborative proposal between the University of Florida (W.G. Sawyer), Rensselaer Polytechnic Institute (L.S. Schadler) and Albany International (G. Toney) teams a tribologist and a materials scientist with a company focused on developing nanomaterials with improved wear behavior. 1.0 Intellectual Merit The overall scientific goal of the project is to gain fundamental understanding of the wear mechanisms in filled polymers by: a) experimentally isolating the effects of particle size (10 nm to 10 um), particle aspect ratio (1 to 1000), dispersion, filler / matrix interface, and matrix properties on performance, b) obtaining a parametric understanding of the correlation between wear behavior and other mechanical properties, and c) modeling of the wear properties. Polymer nanocomposites significantly improve the tribological performance when compared to traditional filled polymers. It is unclear for non-lubricious nanoparticles what the mechanism is that lowers the coefficient of friction. Finally, nanoparticle filled polymers have not been comprehensively explored for wear applications despite evidence suggesting large improvements in performance. 2.0 Broader Impacts The impact of these new materials in polymeric bearings will be broad, covering the spectrum from industrial applications needing dry sliding bearings, to orthopaedic implant materials, to self-lubricating bearings for space environments. An indication of the industrial interest in this field is the support of Albany International for this work (~$60K). They are supporting a full time graduate student at Rensselaer and have also supplied funds to Florida for wear testing. They will be hiring a graduate student into a co-op position in order to transfer technology developed by Florida and Rensselaer and provide industrial experience for the student. Students will travel between both Rensselaer Polytechnic Institute in Troy NY and the University of Florida in Gainesville FL to broaden their knowledge in the synthesizing and processing of nano-particles and composites and tribological testing and modeling, respectively.

摘要：纳米复合材料的 GOALI 摩擦学 这项由佛罗里达大学 (W.G. Sawyer)、伦斯勒理工学院 (L.S. Schadler) 和奥尔巴尼国际公司 (G. Toney) 合作的提案，由一名摩擦学家和一名材料科学家与一家专注于开发改进纳米材料的公司合作。磨损行为。 1.0 智力价值 该项目的总体科学目标是通过以下方式获得对填充聚合物磨损机制的基本了解：a) 通过实验分离颗粒尺寸（10 nm 至 10 um）、颗粒长宽比（1 至 1000）的影响，分散度、填料/基体界面和基体特性对性能的影响，b) 获得磨损行为与其他机械特性之间相关性的参数化理解，以及 c) 磨损特性建模。 与传统的填充聚合物相比，聚合物纳米复合材料显着提高了摩擦学性能。 目前尚不清楚非润滑纳米粒子降低摩擦系数的机制是什么。 最后，尽管有证据表明性能有很大改进，但纳米粒子填充聚合物尚未在磨损应用中得到全面探索。 2.0 更广泛的影响 这些新材料对聚合物轴承的影响将是广泛的，涵盖从需要干式滑动轴承的工业应用到骨科植入材料，再到用于太空环境的自润滑轴承。 奥尔巴尼国际公司对这项工作的支持（约 6 万美元）表明了工业界对该领域的兴趣。 他们正在支持伦斯勒大学的一名全日制研究生，并为佛罗里达州提供资金进行磨损测试。 他们将雇用一名研究生担任带薪实习职位，以便转让佛罗里达州和伦斯勒大学开发的技术，并为学生提供行业经验。 学生将往返于纽约特洛伊的伦斯勒理工学院和佛罗里达州盖恩斯维尔的佛罗里达大学，分别扩大他们在纳米颗粒和复合材料的合成和加工以及摩擦学测试和建模方面的知识。