Chapters authored
Deposition and Tribology of Carbon and Boron Nitride Nanoperiod Multilayer Hard and Solid Lubricating Films
Part of the book: New Tribological Ways
Nanomechanical Evaluation of Ultrathin Lubricant Films on Magnetic Disks by Atomic Force Microscopy
Part of the book: Scanning Probe Microscopy
Mechanical Nanoprocessing and Nanoviscoelasticity of Surface- Modified Polycarbonate
To clarify their potential as atomic force microscope (AFM) memory media, the nanometer‐scale mechanical processing properties of untreated and fluorocarbon plasma‐treated polycarbonate samples were determined via the sliding of an AFM tip. The surface energy of the polycarbonate was reduced by the fluorocarbon plasma treatment, as well as the force necessary for processing. Nanometer‐scale precise processing of the polycarbonate was realized after the fluorocarbon plasma treatment, and the interval pitch in the formation of lines, spaces, and nanometer‐scale fine dots was minimized to 60 nm with these samples. The viscoelastic properties of the fluorinated polycarbonate were evaluated using an AFM in force modulation mode. The fluorocarbon plasma treatment reduced the friction force of the polycarbonate sample and improved its wear resistance, which caused the friction durability corresponding to the reliability of data reproduction to be markedly improved. These results show that high‐density recording can be realized by nanometer‐scale processing of fluorocarbon plasma‐treated polycarbonate samples.
Part of the book: Nanoscaled Films and Layers
Surface Morphology and Tribological Properties of Nanoscale (Ti, Al, Si, C)N Multilayer Coatings Deposited by Reactive Magnetron Sputtering
The current topics related to the morphology and tribology of TiAlN monolayer, TiAlN/SiNx, TiAlN/CNx and TiAlN/CNx±CNx nanoscale multilayer coatings and refer to our recent results on the evaluation of surface morphology, and nanoscale mechanical and tribological properties of coatings deposited on cemented carbide cutting tools and silicon wafer substrates by reactive magnetron sputtering deposition. The surface morphology and microstructure of the coatings were evaluated with an atomic force microscope in dynamic friction mode together with transmission electron microscope imaging. The tribological properties of the coatings were evaluated by pin-on-disc friction testing in dry air, and high-frequency linear-oscillation friction testing under various lubrication conditions. The tribological properties of the multilayer TiAlCrSiN and TiAlSiN coatings were compared with those of a single layer TiAlN coating to evaluate their possible applications to the surfaces of cutting tools. The machining performances of single layer TiAlN, multilayer TiAlSiN, and TiAlCrSiN coated drills were investigated in drilling of carbon steel.
Part of the book: Tribology, Lubricants and Additives