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The micro/nanoelectromechanical systems (MEMS/NEMS) need to be designed to perform expected functions typically in millisecond to picosecond range. Expected life of the devices for high speed contacts can vary from few hundred thousand to many billions of cycles, e.g., over a hundred billion cycles for digital micromirror devices (DMDs), which puts serious requirements on materials. For BioMEMS/BioNEMS,...
Tribological properties of perfluoropolyether (PFPE) lubricants with different end groups, applied on Si(100) substrate, are investigated. The PFPE lubricant with two hydroxyl groups at each end of the molecular chain (Z-TETRAOL) and another lubricant with a hydroxyl group at one end and a cyclotriphosphazene group at the other end, respectively (A20H) (used by itself and mixed with Z-DOL) are studied...
Scanning tunnelling microscopy and atomic force microscopy/friction force microscopy are increasingly used for tribological studies ranging from atomic and molecular scales to microscales. These studies are needed to develop a fundamental understanding of interfacial phenomena on a small scale and to study interfacial phenomena in micro- and nanostructures used in magnetic storage devices, MEMS and...
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