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

ChemInform Abstract: Corrosion of Thin Film Magnetic Disk: Galvanic Effects of the Carbon Overcoat.

ChemInform ◽  
1989 ◽  
Vol 20 (18) ◽  
Author(s):  
V. BRUSIC ◽  
M. RUSSAK ◽  
R. SCHAD ◽  
G. FRANKEL ◽  
A. SELIUS ◽  
...  
Keyword(s):  
Thin Film ◽  
Carbon Overcoat ◽  
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.

Mechanical property measurements of thin-film carbon overcoat on recording media towards 1Tbit∕in2

2006 ◽  
Vol 99 (8) ◽  
pp. 08G906 ◽  
Author(s):  
Ki Myung Lee ◽  
Chang-Dong Yeo ◽  
Andreas A. Polycarpou
Keyword(s):  
Thin Film ◽  
Mechanical Property ◽  
Recording Media ◽  
Carbon Overcoat

The effect of carbon overcoat diffusion on CoCrTa/Cr thin-film media

1998 ◽  
Vol 34 (4) ◽  
pp. 1567-1569 ◽  
Author(s):  
J.J.-K. Chang ◽  
K.E. Johnson ◽  
H. Kawayoshi ◽  
Peiching Ling ◽  
M. Strathman
Keyword(s):  
Thin Film ◽  
Carbon Overcoat

SEM Studies of Wear Mechanisms in Magnetic Thin Film Disks With Different Overcoats

1992 ◽  
Vol 114 (2) ◽  
pp. 263-269 ◽  
Author(s):  
S. K. Ganapathi ◽  
R. D. Balanson ◽  
F. E. Talke
Keyword(s):  
Thin Film ◽  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Wear Track ◽  
Magnetic Thin Film ◽  
Carbon Overcoat ◽  
Metal Metal ◽  
Sliding Interfaces ◽  
Optical Profilometer ◽  
Scanning Electron

Scanning Electron Microscopy and optical profilometer studies were conducted to study the wear of unlubricated thin-film magnetic recording disks overcoated with carbon as well as silver and zirconia. The results indicate that wear of the carbon overcoat occurs in the form of localized damage, or “pits,” accompanied by a gradual “thinning” of the carbon overcoat in the wear track. A similar pitting behavior is found for zirconia overcoated disks, but the pits resemble cracks in the overcoat, while the wear of silver disks resembles that of typical metal-metal sliding interfaces.

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
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