Title :
Effect of Disk Asperity Size on Contact-Induced Head Scratches and Reader Temperature of a Thermal Flying Height Control Slider–Disk Interface
Author :
Wenping Song ; Longqiu Li ; Ovcharenko, Andrey ; Chuanwei Zhang ; Talke, Frank E.
Author_Institution :
Harbin Inst. of Technol., Harbin, China
Abstract :
The mechanical and thermal response of a thermal flying height control slider during contacts with a disk asperity is numerically studied. The effect of asperity height and asperity diameter on the scratch dimensions in the read/write shields is investigated, and the maximum temperature at the reader location is determined. The effect of the number of contact cycles is studied.
Keywords :
disc drives; hard discs; asperity diameter; asperity height effect; contact-induced head scratches; disk asperity size effect; reader temperature; thermal flying height control slider-disk interface; Aluminum oxide; Finite element analysis; Interference; Magnetic heads; Temperature sensors; Transient analysis; Asperity size; Slider/asperity contact; asperity size; scratch formation; slider/asperity contact; temperature rise;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2015.2443017
