Metal-Organic Precursors for High-Temperature Lubrication

项目概要高温润滑用金属有机前驱体Q. J. Wang，T. Marks和L. M. Keer西北大学提出了一种使用软金属有机化学气相沉积（MOCVD）工艺的原位新型润滑方法，用于实现1）通过原位MOCVD工艺的沉积/补充，2）在高温下正常运行的固体润滑，3）在极高温度下持续最大功率输送的液体金属润滑，以及4）对热致故障的自修复。拟议的研究涉及合成，表征和评估具有定制热性能和分解途径的银基金属有机化合物。 金属有机化合物具有较宽的分解温度范围和不同的软金属，有望成为一类新型的高温润滑剂。 拟议的研究结果将提供一个更好地了解银生长过程中的金属表面上的机械性质，以及如何这种增长取决于前体连接，沉积条件和沉积技术。 在高温润滑方面的重大进展将具有巨大的经济效益。 此外，一个高度互动的跨学科项目将为学生培训提供一个具有挑战性的环境。

Project SummaryMetal-Organic Precursors for High-Temperature LubricationQ. J. Wang, T. Marks, and L. M. KeerNorthwestern UniversityAn in-situ novel lubrication approach using a soft metal-organic chemical vapor deposition (MOCVD) process is proposed for accomplishing 1) deposition/replenishment through the in-situ-MOCVD process, 2) solid lubrication at high temperatures for normal operation, 3) liquid metal lubrication at extremely high temperatures for sustained maximum power delivery, and 4) self-healing against thermally induced failures. The proposed research involves synthesizing, characterizing, and evaluating silver-based metal-organic compounds with tailor-made thermal properties and decomposition pathways. It is expected that metal-organic compounds developed with a wide range of decomposition temperatures and different soft metals will be a class of novel high-temperature lubricants. The results of the proposed research will provide a better understanding of the mechanistic nature of silver growth processes on metal surfaces and how such growth depends on precursor ligation, deposition conditions, and deposition technique. A significant advance in high-temperature lubrication would have great economic benefit. Moreover, a highly interactive, interdisciplinary project will provide a challenging environment for student training.