Title :
Further study of the effect of water vapor on slider air-bearing
Author :
Ma, Y.S. ; Liu, B.
Author_Institution :
Data Storage Inst., A*STAR (Agency for Sci., Technol. & Res.), Singapore
Abstract :
In this article, the effect of slider air-bearing pressure on the saturated water vapor pressure is explained. The adsorbed water film thickness on slider and disk surfaces as a function of relative humidity at different temperatures is calculated. The dynamic adsorption/desorption equilibrium between water vapor and the adsorbed water films on slider and disk surfaces is discussed. The effects of slider air-bearing pressure, temperature, slider-disk spacing, and relative humidity on the water vapor pressure in slider-disk interface are studied. An empirical equation is developed for the calculation of accurate water vapor pressure distribution in slider-disk interface.
Keywords :
adsorption; desorption; disc drives; hard discs; humidity; thin films; adsorbed water film thickness; adsorption-desorption equilibrium; disk surface; relative humidity; slider air-bearing pressure; slider surface; slider-disk interface; slider-disk spacing; water vapor pressure distribution; Differential equations; Drives; Dynamic equilibrium; Hard disks; Humidity; Memory; Pressure control; Process control; Temperature; Thickness measurement; Flying height; Hard disk drive; Slider air-bearing; Water vapor;
Conference_Titel :
Magnetic Recording Conference, 2009. APMRC '09. Asia-Pacific
Conference_Location :
Singapore
Print_ISBN :
978-9810-82191-3
DOI :
10.1109/APMRC.2009.4925367