Agilent 5991-3319EN Nanotribology of Hard Thin Film Coatings A Case Study Using the G200 Nanoindenter c2013 free download

File name 5991-3319EN Nanotribology of Hard Thin Film Coatings_ A Case Study Using the G200 Nanoindenter c2013

Nanotribology of Hard Thin Film Coatings: A Case Study Using the G200 Nanoindenter Application Note Introduction is also important in many applications Thin film coatings are extensively to understand the deformation behavior used in various applications, such as of the film due to lateral movement of microelectronics, data-storage media, sharp contacts, which is referred to surgical tools, biomedical prosthetic as nanotribology. Most thin film hard components, machining tools, turbine coatings should possess two important blades etc. Along with some functional characteristics, low coefficient of friction improvements, these thin coatings also and a high strength adhesive bonding significantly enhance the mechanical with the underlying substrate. In some reliability of the components. Hard applications a low wear rate under thin films provide the resistance cyclic scratching may also be important, to mechanical deformation that but it was not a critical concern for the the components need during their thin film with extremely high hardness, application. With the advancements in discussed herein. Nanoindentation with nanomaterials research, new thin film lateral force measurement capability is systems -- often only a few 100's of an ideal tool to address the tribological nm -- are being developed to improve characteristics of such thin film materials the performance of thin coatings in at nano length scales. all of these technologically important areas. Hence, it is becoming more and Before we discuss the tribological more important to design new test properties of a thin hard coating, methods that addresses the relevant it is important to differentiate the deformation mechanisms in thin films, measurements using a nanoindenter with which are not suited to be characterized those performed at micro/macro-scale. by the conventional test methods and Tribology being a subject of interest standards. for long time, there are quite a few international standards for tribological Nanoindentation has been a method measurements, some of which also of choice to characterize mechanical include measurement on thin coatings. properties of small volumes of materials, However, according to all the standards, such as thin films. This is especially true the measurements are performed with since an analytical method has been a probe of much larger length scale proposed to measure the properties (usually 100's of microns) compared to of the films without the substrate the coating material. Although the larger effect. Besides measuring the elastic probes enable an optical inves