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Nanotribology: measurement and modelling across the rubbing interface

纳米摩擦学：摩擦界面的测量和建模

基本信息

批准号：
EP/G026114/1
负责人：
Hugh Spikes
金额：
$ 130.54万
依托单位：
Imperial College London
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2009
资助国家：
英国
起止时间：
2009 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=EP%2FG026114%2F1
关键词：
Nanotribology measurement modelling across rubbing

项目摘要

The term nanotribology was first coined by IBM in the early 1990s to refer to the study of tribology research and processes (such as friction and wear) at the nanoscale, i.e. at the scale of tens to thousands of atoms and molecules. Initially the main focus of nanotribology research was to understand and improve the lubrication of tiny devices such as hard discs and micromachines. More recently, nanotribology has become very important in the study of sliding biological systems such as human joints and stem cell development (it has been found that the development of stem cells into various types of specialist cells is partly-controlled by their mechanical environment).However in addition to these explicitly nanoscale systems, we now realise that many aspects of macroscale sliding contacts, such as dry friction, friction modifier additive reactions and wear are actually determined by nanoscale processes and can be best understood by applying the tools and insights that have been developed over the last fifteen years for nanotribology research. Unfortunately tribology researchers in the UK have, by and large, not kept pace with the international development of nanotribology and there is no group in the UK that has the ability to participate and compete on the world-stage in the field in more than one or two narrow areas. The problem is that world-leading nanotribology research requires the coupling of several different, advanced experimental and numerical techniques (nanoprobes, focussed ion beam milling, spectroscopy, molecular dynamics simulation etc.) and UK tribology groups have tended not to have the resources and background to be able to establish such a broad activity.The intention of this Grant application is to enable us to establish such a platform of capability for research in nanotribology. The Grant will part-fund specialists in the various key experimental and numerical skill areas required to conduct research in nanotribology, thus ensuring that we can build and maintain the broad technique base needed. These specialists, as well as providing support to research projects that need to make use of the techniques concerned, will also carry out feasibility studies aimed primarily at developing new tools for nanotribology research. The future goal will be to link nanotribology with conventional continuum tribology so as to enable modelling and prediction of the behaviour of systems where both scales are crucial, for example in the mixed lubrication of machine components, in wear and in lubrication of micro-scale biological systems.

术语纳米摩擦学最初是由IBM在20世纪90年代初创造的，指的是在纳米尺度上，即在数万到数千个原子和分子尺度上对摩擦学研究和过程(如摩擦和磨损)的研究。最初，纳米摩擦学研究的主要重点是了解和改善硬盘和微型机械等微型设备的润滑。最近，纳米摩擦学在人类关节和干细胞发育等滑动生物系统的研究中变得非常重要(已发现干细胞发育成各种类型的专业细胞的过程部分受其机械环境的控制)。但除了这些明确的纳米级系统外，我们现在意识到，宏观滑动接触的许多方面，如干摩擦、摩擦改进剂添加反应和磨损，实际上是由纳米级过程决定的，可以通过应用过去15年来为纳米摩擦学研究开发的工具和见解来最好地了解它们。不幸的是，总的来说，英国的摩擦学研究人员没有跟上纳米摩擦学的国际发展步伐，英国没有一个团体有能力在一个或两个以上的狭窄领域参与并在世界舞台上竞争。问题是，世界领先的纳米摩擦学研究需要几种不同的、先进的实验和数值技术(纳米探针、聚焦离子束研磨、光谱学、分子动力学模拟等)的耦合。而英国摩擦学组织往往没有资源和背景来建立如此广泛的活动。这项拨款申请的目的是使我们能够建立一个在纳米摩擦学研究方面的能力平台。该基金将为开展纳米摩擦学研究所需的各种关键实验和数值技术领域的专家提供部分资金，从而确保我们能够建立和保持所需的广泛技术基础。这些专家除了为需要利用相关技术的研究项目提供支持外，还将开展可行性研究，主要目的是开发新的纳米摩擦学研究工具。未来的目标将是将纳米摩擦学与传统的连续介质摩擦学联系起来，以便能够对两个尺度都至关重要的系统的行为进行建模和预测，例如在机械部件的混合润滑、磨损和微型生物系统的润滑中。