Abstract
The velocity dependence of disk lifetime and temperature rise before failure during a pin-on-disk type sliding test on coated magnetic disks was investigated in detail The disk lifetime decreased with increasing sliding velocity, with less velocity dependence at lower velocities than at higher velocities. The temperature rise just before disk failure was measured using an infrared microscope and was calculated using the measured coefficient of friction. The discrepancy between measured and calculated temperature rise and the reason for the velocity dependence in the disk lifetime are discussed.
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