Low Molecular Weight Z-Tetraol Boundary Lubricant Films in Hard Disk Drives
Figure 2
(a) Representative data plotting the rms acoustic emission (AE) as a function of slider-disk clearance for Z-Tetraol 2200 and Z-Tetraol 1200. The is defined as the distance between the thermally protruding read-write element of the slider and the disk surface. (b) The slider-disk clearance data plotted relative to Z-Tetraol 2200. Open circles are the individual data points. Average data are represented by the blue points with 1 sigma standard deviation. The inset figure plots the as a function of film thickness for Z-Tetraol 2200, providing a slope of . Thus, approximately of the clearance difference between Z-Tetraol 2200 and Z-Tetraol 1200 can be attributed to the thickness difference.
