Influence of surface texture of a thin-film rigid disk on frictional properties at the head-disk interface

1990 ◽  
Vol 26 (5) ◽  
pp. 2502-2504 ◽  
Author(s):  
M. Ito ◽  
T. Shinohara ◽  
K. Yanagi ◽  
K. Tanaka
Keyword(s):  
Thin Film ◽  
Surface Texture ◽  
Head Disk Interface ◽  
Disk Interface ◽  
Rigid Disk ◽  
Frictional Properties

Simulation of Contact Behavior of the Thin Film of Hard Disk at Head/Disk Interface

2011 ◽  
Vol 287-290 ◽  
pp. 2339-2342
Author(s):  
Hong Rui Ao ◽  
Deng Pan ◽  
Hong Yuan Jiang
Keyword(s):  
Thin Film ◽  
Hard Disk Drives ◽  
Hard Disk ◽  
Hertzian Contact ◽  
Von Mises Stress ◽  
Head Disk Interface ◽  
Disk Interface ◽  
Slider Motion ◽  
Von Mises ◽  
Layered Thin Film

The contact at head/disk interface in hard disk drives subject to an external shock has been studied using the finite element method. A rigid cylinder moving over a two-layered thin film was implemented to simulate the contact between the recording slider and the disk. The effects of different friction coefficients on the von Mises stress of two-layered thin film were investigated. The relation between pressed depth and width of deformation has been obtained. Results show that the amplitude decreases with increase of friction coefficient while the period of slider motion is diminution. In addition, the stress distribution fits Hertzian contact theory.

scholarly journals OPTICAL SURFACE ANALYSIS OF THE HEAD DISK INTERFACE OF THIN FILM DISKS

1994 ◽  
Vol 18 (S_2_PMRC_94_2) ◽  
pp. S2_31-31 ◽  
Author(s):  
Sleven W. Meeks ◽  
Walter E. Weresin ◽  
Hal J. Rosen
Keyword(s):  
Thin Film ◽  
Surface Analysis ◽  
Head Disk Interface ◽  
Optical Surface ◽  
Disk Interface

A stiction model for a head‐disk interface of a rigid disk drive

1995 ◽  
Vol 78 (6) ◽  
pp. 4206-4217 ◽  
Author(s):  
Jing Gui ◽  
Bruno Marchon
Keyword(s):  
Disk Drive ◽  
Head Disk Interface ◽  
Disk Interface ◽  
Rigid Disk

Contact Analysis of Regular Patterned Rough Surfaces in Magnetic Recording

1995 ◽  
Vol 117 (1) ◽  
pp. 26-33 ◽  
Author(s):  
Bharat Bhushan ◽  
Xuefeng Tian
Keyword(s):  
Thin Film ◽  
Rough Surface ◽  
Optimum Design ◽  
Contact Area ◽  
Magnetic Recording ◽  
Design Criteria ◽  
Head Disk Interface ◽  
Magnetic Head ◽  
Disk Interface ◽  
Meniscus Force

The contact of regular patterned rough surface in magnetic recording was analyzed to predict the contact area, meniscus force and permissible load under thin-film lubricated conditions. The contact area, the meniscus force, and the permissible load at the magnetic head-disk interface were studied as a function of the shape, size and the occupation of asperities. Optimum design criteria for both constant occupation and nonconstant occupation of identical asperities were developed to design future magnetic head and disk surfaces.

Analysis of Contact Deformation and Stiction Between Textured Disk and Textured Slider

2000 ◽  
Vol 123 (2) ◽  
pp. 350-357 ◽  
Author(s):  
Mingwu Bai ◽  
Koji Kato
Keyword(s):  
Physical Model ◽  
Contact Area ◽  
Surface Texture ◽  
Flying Height ◽  
Loading Conditions ◽  
Contact Deformation ◽  
Head Disk Interface ◽  
Disk Interface ◽  
Recording Density ◽  
Texture Parameters

To meet the ever-increasing magnetic recording density, the hard disk industry is focusing on reducing flying height. Texturing the slider surface to reduce the head–disk contact area is one of the most challenging and promising techniques in the current industry. In this study, a mathematical–physical model based on an extension of the Greenwood–Tripp model is proposed for predicting and analyzing the contact deformation and stiction between both textured disk and slider. The contact deformation and stiction of the head–disk interface is analyzed in considering surface texture parameters, lubricant properties, and loading conditions.

Tribological phenomena at the head–disk interface of thin‐film rigid disks

1989 ◽  
Vol 7 (3) ◽  
pp. 2491-2495 ◽  
Author(s):  
Hsiao‐chu Tsai ◽  
Yassin Mehmandoust ◽  
Hamid Samani ◽  
Atef Eltoukhy
Keyword(s):  
Thin Film ◽  
Head Disk Interface ◽  
Disk Interface ◽  
Rigid Disks
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