英文文献综述review article.pptx

Name: 杨永喜Student ID: 15S008154Winter 2015School of Mechatronics EngineeringScientific LiteratureReadingsTribology of Graphene: A ReviewAuthors: Oleksiy Penkov, Hae-Jin Kim, Hyun-Jon Kim, Dae-Eun KimScientific LiteratureReadingsAbstractBackground Graphene has received significant attention due to its combination of remarkable mechanical, thermal, chemical and electrical properties. Furthermore, due to its superior strength, graphene has great potential for use as an ultra-thin protective coating for various precision components. In this paper, the latest developments in tribological applications of graphene, theoretical simulations of graphene friction and preparation methods are reviewed. It is shown that various graphene coatings can be successfully used to decrease friction and wear in nano-, micro- and macro-mechanical applications. However, the conditions under which graphene serves as an effective protective coating depends on the operating parameters. A comprehensive review is provided with the aim to assess such characteristics of graphene.ConclusionScientific LiteratureReadingsA Brief Review of Tribology Tribological behavior plays an important role in the performance of ultra-precision mechanical systems.Scientific LiteratureReadingsA Brief Review of Tribology And the wear resistance determines the mechanical and commercial viability of the device.Scientific LiteratureReadingsLimitations of Classical Method However, as a result of surface tension effects, classical methods for reducing friction with lubricating fluids cannot be employed in microsystems.Scientific LiteratureReadingsLimitations of Classical Method Different types of thin coatings such as soft metals, organic compounds such as self-assembled monolayers, bi-layer and multilayer hard coatings, diamond-like carbon films and nanostructured coatings can be used to reduce friction and wear in micro-devices. Unfortunately, despite reports of numerous proposed coatings, an optimum m