Tribo-chemistry at the head/disk interface
- SSD/IBM, San Jose, CA (United States)
- Univ. of California, Berkeley, CA (United States). Computer Mechanics Lab.
- Lawrence Berkeley National Lab., CA (United States)
- IBM Research Div., San Jose, CA (United States)
Tribo-chemical studies at the head/disk interface (HDI) were conducted on hydrogenated (CH{sub x}), nitrogenated (CN{sub x}), and cathodic-arc amorphous hard carbon disk samples coated with perfluoropolyether ZDOL and X1P/ZDOL lubricant. The studies involved drag tests with uncoated and carbon-coated Al{sub 2}O{sub 3}-TiC sliders and thermal desorption experiments in an ultra-high vacuum (UHV) tribochamber followed with a surface chemistry analysis by X-ray Photo Emission Electron Microscopy (X-PEEM) and Near Edge X-ray Absorption Fine Structure (NEXAFS) spectroscopy. The friction and catalytic decomposition mechanisms of ZDOL are described, as well as the tribo-chemical performance of cathodic-arc carbon overcoats coated with ZDOL, and data demonstrating the chemical alteration of the lubricant and carbon overcoat are also presented.
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 334095
- Journal Information:
- IEEE Transactions on Magnetics, Journal Name: IEEE Transactions on Magnetics Journal Issue: 2Pt1 Vol. 35; ISSN IEMGAQ; ISSN 0018-9464
- Country of Publication:
- United States
- Language:
- English
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