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Polar perfluoropolyether lubricants are widely used for topical lubrication of thin-film rigid disks. However, little is known about the role of bonded lubricant on tribological performance. In this study, as-applied lubricant films, after thermal treatment and after thermal treatment and washing to remove unbonded fraction, have been studied. The bonded fraction of lubricant films on coated disks...
Glass-ceramic and glass substrates are beginning to be used in the construction of magnetic thin-film rigid disks for their rigidity, shock (dent) resistance, and smoothness over commonly used Ni P coated aluminum-magnesium substrates. Coefficients of static friction (stiction) and kinetic friction in clean ambient (class 100) and durability in various environments were measured for disks constructed...
Surface roughness measurements were performed on two types of glass-ceramic substrates (GC 1 , GC 2 ) and corresponding finished magnetic disks (GC 1f GC 2f ), Ni P coated Al Mg substrate (Ni P) and glass substrate (Gl) by atomic force microscope (AFM), stylus profiler (SP) and non-contact optical profiler (NOP) for different scan sizes and sampling intervals...
Chemically strengthened glass substrates have recently been used in the construction of magnetic thin-film rigid disks for their rigidity, shock resistance, and smoothness over commonly used Ni P coated aluminum substrates. The effects of disk roughness, lubricant film thickness and viscosity on coefficients of static and kinetic friction and on disk durability were investigated for disks constructed...
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