Tribology tests of materials and fluids in gaseous controlled environment

气体受控环境中材料和流体的摩擦学测试

• 批准号: 2902361
• 金额: --
• 依托单位: Imperial College London
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2902361
• 关键词: Tribology; tests; materials; fluids; gaseous

Lubricants are complex fluids which are crucial to the efficiency and durability of machines. They consist of a base fluid and multiple functional additives. Some of these additives, including friction modifiers and antiwear additives, are surface actives and form protective films on rubbing surfaces. It is now realized that the reactions by which these protective films are formed are driven by the enormous mechanical forces experienced by individual additive molecules within rubbing contacts, i.e. mechanochemistry. The ability of these additives to form tribofilms is thus determined by the way their molecular structure experiences, responds to applied forces and most important the gas involved.The project that I am going to study will explore possible additives to be used in inert atmosphere that are comparable with commercial additives. It will employ advanced tribology test equipment to form and monitor in situ the kinetics of formation and composition of tribofilms using advanced laser spectroscopies. Based on this it will determine the possible mechanisms and additive candidate.

润滑剂是一种复杂的流体，对机器的效率和耐用性至关重要。它们由基础流体和多种功能添加剂组成。这些添加剂中的一些，包括摩擦改性剂和抗磨添加剂，是表面活性剂并在摩擦表面上形成保护膜。现在认识到，形成这些保护膜的反应是由摩擦接触内的单个添加剂分子所经历的巨大机械力驱动的，即机械化学。因此，这些添加剂形成摩擦膜的能力取决于它们的分子结构，对作用力的反应，以及最重要的是所涉及的气体。我将要研究的项目将探索在惰性气氛中使用的可能的添加剂，这些添加剂与商业添加剂相当。它将采用先进的摩擦学测试设备，利用先进的激光光谱法形成和监测摩擦膜的形成和组成动力学。在此基础上，它将确定可能的机制和添加剂的候选人。