scholarly journals Advanced Storage Systems for Image Information Media. 3 Hard Disk and their Essential Technologies. 3-2 Mechanism, Servo Control, and Head/Disk Interface.

1998 ◽  
Vol 52 (10) ◽  
pp. 1412-1415
Author(s):  
Takashi Yamaguchi
Keyword(s):  
Storage Systems ◽  
Hard Disk ◽  
Servo Control ◽  
Head Disk Interface ◽  
Image Information ◽  
Disk Interface ◽  
Information Media

Head–disk interface (HDI) degradation risk reduction in hard disk drive (HDD) during thermal asperity (TA) track follow mapping and seeking

2021 ◽  
Author(s):  
Abhishek Srivastava ◽  
Bernd Lamberts ◽  
Karthik Venkatesh ◽  
Rahul Rai ◽  
Ning Li ◽  
...  
Keyword(s):  
Risk Reduction ◽  
Hard Disk Drive ◽  
Hard Disk ◽  
Disk Drive ◽  
Head Disk Interface ◽  
Disk Interface

Numerical Investigation of Thermal Effects on a HAMR Head-Disk Interface

2014 ◽  
Author(s):  
Kyaw Sett Myo ◽  
Weidong Zhou ◽  
Xiaoyang Huang ◽  
Shengkai Yu
Keyword(s):  
Temperature Field ◽  
Laser Beam ◽  
Numerical Investigation ◽  
Thermal Effects ◽  
Hard Disk ◽  
Disk Surface ◽  
Recording Media ◽  
Head Disk Interface ◽  
Disk Interface ◽  
High Density Recording

Heat-assisted magnetic recording (HAMR) is one of prospective high density recording technologies in current hard disk industry. It requires heating a spot on the recording media with the laser beam to overcome the superpara-magnetic limit. The heat produced by laser beam causes the temperature field on the hard disk surface to be highly non-uniform, which may lead to unexpectedly severe lubricant loss, or even the failure of the whole HAMR system. In the meantime, the heat loss caused by the optical delivery system may cause unwanted thermal protrusion on the slider body, which may affect slider’s flying stability in the end.

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.

Tribocharging of the magnetic hard disk drive head–disk interface

2002 ◽  
Vol 91 (7) ◽  
pp. 4631-4636 ◽  
Author(s):  
J. D. Kiely ◽  
Y.-T. Hsia
Keyword(s):  
Hard Disk Drive ◽  
Hard Disk ◽  
Disk Drive ◽  
Head Disk Interface ◽  
Disk Interface ◽  
Magnetic Hard Disk
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