Performance of hard DLC protective film prepared by PECVD method for thin film magnetic disk

1994 ◽  
Vol 30 (6) ◽  
pp. 4134-4136 ◽  
Author(s):  
K. Iechika ◽  
Y. Kokaku ◽  
M. Ootake ◽  
K. Abe ◽  
H. Tani ◽  
...  
Keyword(s):  
Thin Film ◽  
Protective Film ◽  
Magnetic Disk

Depletion of Moleculary Thin Lubricant Under Flying Head in Hard Disk Drives

2007 ◽  
Author(s):  
Kenji Yanagisawa ◽  
Youichi Kawakubo ◽  
Masato Yoshino
Keyword(s):  
Thin Film ◽  
Hard Disk Drives ◽  
Hard Disk ◽  
Lubricant Film ◽  
Simulation Program ◽  
Disk Drives ◽  
Lubricant Thickness ◽  
Magnetic Disk ◽  
Lubricant Depletion ◽  
Lubricant Films

In Hard Disk Drives, lubricants are very important materials to reduce head and disk wear. Therefore, it is necessary to know the lubricant depletion under flying heads. Lubricant depletion due to flying heads has been studied experimentally. We developed simulation program to calculate numerically the change in lubricant thickness under a flying head on a thin-film magnetic disk from 10nm thick lubricant film. In recent HDDs, the lubricants thickness has become molecularly thin and polar lubricants have been used. In this paper, we took account of thickness-dependent lubricants diffusion and viscosity in our simulations to calculate a 1.2 nm thick polar lubricant film used in recent HDDs. The simulated results considering the thickness-dependent diffusion and viscosity showed that depletion was small in molecularly thin lubricant films. We considered it necessary to include thickness-dependent diffusion and viscosity in lubricant depletion simulation.

scholarly journals Corrosion of Thin Film Magnetic Disk: Galvanic Effects of the Carbon Overcoat

1989 ◽  
Vol 136 (1) ◽  
pp. 42-46 ◽  
Author(s):  
V. Brusic ◽  
M. Russak ◽  
R. Schad ◽  
G. Frankel ◽  
A. Selius ◽  
...  
Keyword(s):  
Thin Film ◽  
Carbon Overcoat ◽  
Magnetic Disk

Sliding-pin shapes and lubricant thickness change on a thin-film magnetic disk

2003 ◽  
Vol 36 (8) ◽  
pp. 593-598 ◽  
Author(s):  
Y. Kawakubo ◽  
M. Ishii ◽  
N. Sasaki
Keyword(s):  
Thin Film ◽  
Lubricant Thickness ◽  
Thickness Change ◽  
Magnetic Disk

The Detection of Flash Temperatures in a Sliding Contact by the Method of Tribo-Induced Thermoluminescence

1991 ◽  
Vol 113 (1) ◽  
pp. 120-127 ◽  
Author(s):  
S. Suzuki ◽  
F. E. Kennedy
Keyword(s):  
Thin Film ◽  
Short Duration ◽  
Contact Spot ◽  
Sliding Contact ◽  
Sliding Contacts ◽  
Magnetic Disk ◽  
Sliding Interface

A method is presented for measuring short duration flash temperatures in sliding contacts. The method uses a photomultiplier to collect photons emitted by a hot contact spot. The method was used to measure flash temperatures at the contact between a spherical sapphire slider and a rapidly moving thin film magnetic disk. It was found that temperature flashes of over 1000° C, lasting less than 2 μs, can occur at the sliding interface.

"Dual-carbon", a new surface protective film for thin film hard disks

1986 ◽  
Vol 22 (5) ◽  
pp. 999-1001 ◽  
Author(s):  
M. Ishikawa ◽  
N. Tani ◽  
T. Yamada ◽  
Y. Ota ◽  
K. Nakamura ◽  
...  
Keyword(s):  
Thin Film ◽  
Hard Disks ◽  
Protective Film
Sign in / Sign up

Export Citation Format

Share Document