TRIGUS – Tribologically induced changes of boundary surfaces and bulk structures in dry lubricated systems under defined atmospheres

表面的摩擦磨损行为受摩擦学引起的边界表面和结构改性的显著影响，并在很大程度上取决于环境条件。表面涂层可以有针对性地改变这些摩擦学特性，特别是在能源效率和资源保护等全球挑战方面。该建议的重点是访问的基本物理和化学过程中干运行摩擦接触，这将使用四面体无定形碳（ta-C）和钼（IV）-二硫化物（MoS 2）的均匀涂层进行分析。这两种材料代表了科学和技术相关的涂层系统，经历了结构的特征变化，并表现出有关摩擦，磨损和大气影响的互补性能。这两种材料的异质结构涂层系统具有结合极低摩擦（MoS 2）和最高耐磨性（ta-C）的联合收割机的潜力，将在这里首次进行研究。在系统的实验中，将研究均匀和非均匀涂层系统的涂层性能、对体材料、真空和大气气体的影响。该项目的实验和分析基础是基于一个新的，世界各地独特的实验装置，结合了一个通用的真空摩擦磨损试验机与集群工具。组合仪器包括卢瑟福背散射（RBS）、弹性反冲探测（ERD）、椭圆偏振反射光谱法和拉曼光谱法。因此，它提供了必要的在线仪器，用于元件特定的深度分析、涂层厚度以及光学和结构分析，允许在不破坏真空或暴露于环境空气的情况下表征摩擦诱导过程。该提案以前所未有的方式将新涂层系统在规定气氛中的摩擦学特性与复杂的在线分析联系起来。真空摩擦计的设置和鉴定是作为主要研究仪器计划的一部分进行的，并基于德累斯顿工业大学制造技术研究所（TUD）和德累斯顿-罗森多夫亥姆霍兹中心离子束中心（HZDR）的长期合作。

The friction and wear behavior of surfaces is significantly influenced by tribologically induced modification of the boundary surface and structure and depends on environmental conditions to a great extent. Coating of a surface allows targeted modification of these tribological properties, particularly with regard to global challenges like energy efficiency and conservation of resources. The emphasis of this proposal is to access the essential physical and chemical processes in dry running fric-tion contacts, which will be analyzed using homogeneous coatings of tetra-hedral amorphous carbon (ta-C) and Molybdenum(IV)-disulfides (MoS2). Both materials represent scientifically and technically relevant coating systems that undergo a characteristic change in structure and exhibit com-plementary properties concerning friction, wear and the influence of the atmosphere. A heterogeneous, structured coating system of both materials opens the potential to combine very low fric-tion (MoS2) and highest wear resistance (ta-C) and will be investigated here for the first time. In systematic experiments the influence of coating properties, counter body material, vacuum, and atmospheric gases will be studied for homo-geneous and heterogeneous coating systems. The experimental and analytical foundation of this project is based on a new, worldwide unique experimental setup that combines a universal vacuum tribometer with a cluster tool. The cluster tool comprises Rutherford backscattering (RBS), elastic recoil detection (ERD), spectroscopic ellipsometry of reflectometry, and Raman spectroscopy. Thereby, it provides the necessary in-line instrumentation for element specific depth profiling, coating thickness, and optical and structural analysis, allowing the characterization of tribologically induced processes without breaking vacuum or exposure to ambient air. In an unprecedented way, this proposal links tribological characterization of new coating systems in defined atmospheres with complex in-line analysis. Setup and qualification of the vacuum tribometer have been carried out as a part of a Major Research Instrumentation Program and based on a long lasting cooperation of the Institute of Manufacturing Technology at Technische Universität Dresden (TUD) and the Ion Beam Center at Helmholtz-Zentrum Dresden-Rossendorf (HZDR).