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Tribochemical Study of Hydrogenated Carbon Coatings With Different Hydrogen Content Levels in Ultra High Vacuum
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Hydrogenated carbon films (CHx ) with different hydrogen content percentages have been examined. Drag tests on CHx coated disks, using 50 percent Al2 O3 /TiC sliders, with and without carbon ...
Effects of Backbone and Endgroup on the Decomposition Mechanisms of PFPE Lubricants and Their Tribological Performance at the Head-Disk Interface
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Tribo-chemical studies of the lubricant endgroup effect on the tribology of the head-disk interface were conducted using carbon disks coated with PFPE lubricant. The studies involved drag tests ...
Design and Dynamics of Flying Height Control Slider With Piezoelectric Nanoactuator in Hard Disk Drives
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: To achieve the areal density goal in hard disk drives of 1Tbit∕in.2 the minimum physical spacing or flying height (FH) between the read/write element and disk must be reduced to ∼2nm. A brief ...
Tribological Behavior of Amorphous Carbon Nitride Overcoats for Magnetic Thin-Film Rigid Disks
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Amorphous carbon nitride coatings of thickness of 5 and 30 nm were deposited onto 65 and 95 mm magnetic thin-film rigid disks surfaces using single-cathode and dual-cathode magnetron sputtering ...
The Decomposition Mechanisms and Thermal Stability of ZDOL Lubricant on Hydrogenated Carbon Overcoats
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Tribo-chemical studies of the head/disk interface (HDI) were conducted using hydrogenated (CHx) carbon disk samples coated with perfluoropolyether ZDOL lubricant. The studies involved drag tests ...
Ultra-Thin Overcoats for the Head/Disk Interface Tribology
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Cathodic arc deposition forms ultra-thin amorphous hard carbon films of high sp3 content, high hardness, and low coefficient of friction. These properties make it of great interest for head/disk ...
Study of Tribochemical Processes on Hard Disks Using Photoemission Electron Microscopy
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The interface between hard disk and slider involves mechanical and tribochemical processes between the hard carbon overcoat of the disk, the lubricant, and the carbon coated or uncoated slider ...