The friction and wear behavior of diamond-like carbon (DLC) overcoated sliders is investigated as a function of DLC overcoat thickness using contact-start-stop and constant speed drag tests. The dependence of the Raman signal on DLC film thickness is studied. Raman spectra obtained from different locations on the air bearing surface are analyzed before and after wear testing to study wear of the DLC overcoat. The dependence of D and G band areas on DLC film thickness is investigated and the use of Raman spectroscopy for auxiliary measurement of carbon overcoat thickness is discussed.
Issue Section:
Research Papers
1.
Bogy
D. B.
Yun
X.
Knapp
B. J.
1994
, “Enhancement of Head-Disk Interface Durability By Use of Diamond-Like Carbon Overcoats on Slider’s Rail
,” IEEE Transitions on Magnetics
, Vol. 30
, No. 2
, pp. 369
–374
.2.
Jia
K.
YQ
Li.
Fischer
T. E.
Gallois
B.
1995
, “Tribology of Diamond-Like Carbon Sliding Against Itself, Silicon Nitride and Steel
,” Journal of Materials Research
, Vol. 10
, No. 6
, pp. 1403
–1410
.3.
Lacey
C.
Shelor
R.
Cormier
A.
Talke
F. E.
1993
, “Interferometric Measurement of Disk/Slider Spacing: The Effect of Phase Shift on Reflection
,” IEEE Transactions on Magnetics
, Vol. 29
, No. 6
, Part 2, pp. 3906
–3908
.4.
Liew
Y-F.
Lauer
J. L.
Talke
F. E.
Connell
K.
1995
, “Analysis of Deposits from Friction at Head-Tape Interfaces by Raman Spectroscopy
,” Tribology Transactions
, Vol. 38
, pp. 728
–732
.5.
Lespade
P.
Al-Jishi
R.
1982
, “Model for Light Scattering from Incompletely Graphitized Carbons
,” Carbon
, Vol. 20
, No. 5
, pp. 427
–431
.6.
Moya
F.
Druet
S. A. J.
Taran
J. P. E.
1975
, “Gas Spectroscopy and Temperature Measurement by Coherent Raman anti-Stokes Scattering
,” Optics Communications
, Vol. 13
, No. 2
, pp. 169
–174
.7.
Nemanich
R. J.
Glass
J. T.
Lucovsky
G.
Shroder
R. E.
1988
, “Raman Scattering Characterization of Carbon Bonding in Diamond and Diamondlike Thin Films
,” Journal of Vacuum Science Technology A
, Vol. 6
, No. 3
, pp. 1783
–1787
.8.
Robertson
J.
1991
, “Hard Amorphous (Diamond-Like) Carbons
,” Progress in Solid State Chemistry
, Vol. 21
, pp. 199
–333
.9.
Shorder
R. E.
Nemanich
R. J.
Glass
J. T.
1990
, “Analysis of the Composite Structures in Diamond Thin Films by Raman Spectroscopy
,” Physical Review B
, Vol. 41
, No. 6
, pp. 3738
–3745
.10.
Tsai
H.
Bogy
D. B.
Kundmann
M. K.
Veirs
D. K.
Hilton
M. R.
Mayer
S. T.
1988
, “Structure and properties of sputtered carbon overcoats on rigid magnetic media disks
,” Journal of Vacuum Science Technology A
, Vol. 6
, No. 4
, pp. 2307
–2315
.11.
Vlcek
B. L.
Sargent
B. L.
Lauer
J. L.
Ganapathi
S. K.
Talke
F. E.
1993
, “Wear of the Magnetic Head-Carbon Overcoated Disk Interface. A Raman Spectroscopy Study
,” Wear
, Vol. 170
, pp. 173
–183
.12.
Wang
G.
Yeh
T.
Sivertsen
J. M.
Judy
J. H.
1994
, “Tribological and Recording Performance of Carbon-Coated Thin Film Head Sliders on Unlubricated and Lubricated Thin Film Media
,” IEEE Transitions on Magnetics
, Vol. 30
, No. 6
, pp. 4125
–4127
.13.
Wyant
J. C.
Koliopoulos
C. L.
Bhushan
B.
George
O. E.
1983
, “An Optical Profilometer for Surface Characterization of Magnetic Media
,” ASLE Transactions
, Vol. 27
, No. 2
, pp. 101
–113
.14.
Yang
M.
Talke
F. E.
1993
, “Surface Roughness Investigation of Magnetic Recording Disks Using STM and Profilometry Measurements
,” Wear
, Vol. 170
, No. 1
, pp. 15
–24
.
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