Abstract
Degradation products of perfluoropolyether lubricants are observed during friction tests on thin film magnetic recording disks using a mass spectrometer. The friction tests are conducted in high vacuum using thin film read-write heads as sliders. Fomblin Z-dol and Krytox 143AX are used as lubricant. Observed removal rates are significant compared with the lubricant film thickness used. The data suggest that the degradation reaction is activated by low energy electrons produced at the tribological interface.
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