GOALI: Collaborative Research: Tribology of Nanocomposites

翻译后摘要：纳米复合材料的GOALI摩擦学这之间的合作建议佛罗里达大学（WG。索耶），伦斯勒理工学院（L.S. Schadler）和奥尔巴尼国际（G.托尼）与一家专注于开发具有改善磨损行为的纳米材料的公司的摩擦学家和材料科学家合作。1.0该项目的总体科学目标是通过以下方式对填充聚合物的磨损机制进行基本了解：a）通过实验分离颗粒尺寸的影响（10 nm至10 μ m），颗粒纵横比（1至1000）、分散、填料/基质界面和基质性质对性能的影响，B）获得对磨损行为和其它机械性能之间的相关性的参数理解，以及c）对磨损性能进行建模。 与传统的填充聚合物相比，聚合物纳米复合材料显著改善了摩擦学性能。 目前还不清楚非润滑纳米颗粒降低摩擦系数的机制是什么。 最后，纳米颗粒填充的聚合物还没有被全面探索用于磨损应用，尽管有证据表明性能有很大的改善。 2.0更广泛的影响这些新材料在聚合物轴承中的影响将是广泛的，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）表明了该领域的工业兴趣。 他们正在支持伦斯勒的一名全日制研究生，并向佛罗里达提供资金进行磨损测试。 他们将聘请一名研究生进入合作社的位置，以转让技术开发的佛罗里达和伦斯勒，并提供工业经验的学生。 学生将在纽约州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之间旅行，以分别拓宽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。

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.