Head flying characteristics on canasite disks

The isotropic texture on canasite surface is generated intrinsically by polishing due to the differential hardness of crystalline and amorphous phases. Consequently, excellent frictional and gliding properties are achieved on lubricated canasite disks at remarkably low roughness. Lower disturbances and fewer impacts of head flying over a canasite disk are observed by using an acoustic emission sensor. The contact-start-stop testing of canasite disks shows a pattern without continuous increase in friction. Another feature of canasite disks is the lower take-off speed during start-stop cycles. This translates to a lower power consumption and less wear for the disk drive