In order to improve the durability of metal-film magnetic tapes, novel lubricants, A20H, X-1P, and X, a modified phosphazene, were deposited on the tapes. The adhesion, friction, and wear of the unlubricated/lubricated tapes were investigated using an atomic force microscope (AFM). The degradation of the lubricants was studied using a mass spectrometer in high vacuum. The durability of various unlubricated/lubricated tapes was compared in ambient and in humid air. The AFM test results show that the A20H lubricated tape exhibited lower adhesion and friction than X-1P and X lubricated tapes. The lubricants were believed to be mainly degraded by tribochemical reaction and mechanical shear in high vacuum. In high humidity air, the various lubricated tapes exhibit higher friction than in ambient air. By comparing the tribological performances of the various lubricated tapes to metal particle (MP) tape, it was found that the lubricated metal-film tapes exhibit lower adhesion, friction, and wear than the MP tape.

1.
Bhushan
,
B.
, 1996,
Tribology and Mechanics of Magnetic Storage Devices
,
2nd ed.
,
Springer
, New York.
2.
Bhushan
,
B.
, 2000,
Mechanics and Reliability of Flexible Magnetic Media
,
2nd ed.
,
Springer
, New York.
3.
Luitjens
,
S. B.
,
Stupp
,
S. E.
, and
Lodder
,
J. C.
, 1996, “
Metal Evaporated Tape: State of the Art and Prospects
,”
J. Magn. Magn. Mater.
0304-8853,
155
, pp.
261
265
.
4.
Bhushan
,
B.
, and
Zhao
,
Z.
, 1999, “
Macroscale and Microscale Tribological Studies of Molecularly Thick Boundary Layers of Perfluoropolyether Lubricants for Magnetic Thin-Film Rigid Disks
,”
J. Inf. Storage Process. Syst.
1099-8047,
1
, pp.
1
21
.
5.
Waltman
,
R. J.
,
Kobayashi
,
N.
,
Shirai
,
K.
,
Khurshudov
,
A.
, and
Deng
,
H.
, 2004, “
The Tribological Properties of a New Cyclotriphosphazene-Terminated Perfluoropolyether Lubricant
,”
Tribol. Lett.
1023-8883,
16
, pp.
151
162
.
6.
Tao
,
Z.
, and
Bhushan
,
B.
, 2005, “
Bonding, Degradation, and Environmental Effects on Novel Perfluoropolyether Lubricants
,”
Wear
0043-1648,
259
, pp.
1352
1361
.
7.
Yang
,
M.
,
Talke
,
F. E.
,
Perettie
,
D. J.
,
Morgan
,
T. A.
, and
Kar
,
K. K.
, 1994, “
Environmental-Effects on Phosphazene Lubricated Computer Hard Disks
,”
IEEE Trans. Magn.
0018-9464,
30
, pp.
4143
4145
.
8.
Zhao
,
Z.
, and
Bhushan
,
B.
, 1999, “
Tribological Performance of PFPE and X-1P Lubricants at Head-Disk Interface. Part I. Experimental Results
,”
Tribol. Lett.
1023-8883,
6
, pp.
129
139
.
9.
Zhao
,
Z.
,
Bhushan
,
B.
, and
Kajdas
,
C.
, 1999, “
Tribological Performance of PFPE and X-1P Lubricants at Head-Disk Interface. Part II. Mechanisms
,”
Tribol. Lett.
1023-8883,
6
, pp.
141
148
.
10.
Zhao
,
X.
, and
Bhushan
,
B.
, 2000, “
Lubrication Studies of Head-Disk Interfaces in a Controlled Environment Part 1: Effects of Disk Texture, Lubricant Thermal Treatment and Lubricant Additive on the Durability of the Head-Disk Interface
,”
Proc. Inst. Mech. Eng., Part J: J. Eng. Tribol.
1350-6501,
214
, pp.
535
546
.
11.
Perettie
,
D. J.
,
Chao
,
J.
,
Chen
,
S.
,
Shin
,
B.
, and
DeKoven
,
B. M.
, 2003, “
Advanced Lubrication Technology for X-1P Interaction With Media Carbon and Z-Type Lubricants
,”
Tribol. Lett.
1023-8883,
14
, pp.
77
82
.
12.
Bhushan
,
B.
, 2005,
Nanotribology and Nanomechanics: An Introduction
,
Springer-Verlag
, Berlin.
13.
Ruan
,
J.
, and
Bhushan
,
B.
, 1994, “
Atomic-Scale Friction Measurements Using Friction Force Microscopy—1. General-Principles and New Measurement Techniques
,”
ASME J. Tribol.
0742-4787,
116
, pp.
378
388
.
14.
Bhushan
,
B.
, and
Ruan
,
J.
, 1994, “
Tribological Performance of Thin-Film Amorphous-Carbon Overcoats for Magnetic Recording Rigid Disks in Various Environments
,”
Surf. Coat. Technol.
0257-8972,
68
, pp.
644
650
.
15.
Bhushan
,
B.
,
Yang
,
L. S.
,
Gao
,
C.
,
Suri
,
S.
,
Miller
,
R. A.
, and
Marchon
,
B.
, 1995, “
Friction and Wear Studies of Magnetic Thin-Film Rigid Disks With Glass-Ceramic, Glass and Aluminum-Magnesium Substrates
,”
Wear
0043-1648,
190
, pp.
44
59
.
16.
Bhushan
,
B.
, 2002,
Introduction to Tribology
,
Wiley
, New York.
17.
Ma
,
T. J.
, and
Bhushan
,
B.
, 2003, “
Dynamic Mechanical and Thermal Analyses of Magnetic Particle and Metal Evaporated Tapes and Their Individual Layers
,”
J. Appl. Polym. Sci.
0021-8995,
89
, pp.
548
567
.
18.
Bhushan
,
B.
, and
Gupta
,
B. K.
, 1997,
Handbook of Tribology: Materials, Coatings, and Surface Treatments
,
Krieger
, Malabar, FL.
19.
Field
,
J. E.
, 1992,
The Properties of Natural and Synthetic Diamond
,
Academic Press
, London.
20.
Bauccio
,
M.
, 1994,
ASM Engineered Materials Reference Book
,
2nd ed.
,
ASM International
, Materials Park, OH.
21.
Grill
,
A.
, 1993, “
Review of the Tribology of Diamond-Like Carbon
,”
Wear
0043-1648,
168
, pp.
143
153
.
22.
Bhushan
,
B.
, 1999, “
Chemical, Mechanical and Tribological Characterization of Ultra-Thin and Hard Amorphous Carbon Coatings as Thin as 3.5nm: Recent Developments
,”
Diamond Relat. Mater.
0925-9635,
8
, pp.
1985
2015
.
23.
Lide
,
D. R.
, 1994,
CRC Handbook of Chemistry and Physics
,
75th ed.
,
CRC Press
, Boca Raton.
24.
Zhao
,
X.
, and
Bhushan
,
B.
, 2001, “
Studies on Degradation Mechanisms of Tape Lubricants in a High Vacuum Environment
,”
Tribol. Lett.
1023-8883,
11
, pp.
133
141
.
25.
Robertson
,
J.
, 1991, “
Hard Amorphous (Diamond-Like) Carbons
,”
Prog. Solid State Chem.
0079-6786,
21
, pp.
199
333
.
26.
Zhao
,
X.
, and
Bhushan
,
B.
, 2001, “
Studies on Degradation Mechanisms of Lubricants for Magnetic Thin-Film Rigid Disks
,”
Proc. Inst. Mech. Eng., Part J: J. Eng. Tribol.
1350-6501,
215
, pp.
173
188
.
27.
Nakayama
,
K.
, and
Hashimoto
,
H.
, 1995, “
Triboemission of Electrons and Ions During Wear of Solids Under Boundary Lubrication With Saturated-Hydrocarbon Liquids
,”
Tribol. Trans.
1040-2004,
38
, pp.
541
548
.
28.
Bhushan
,
B.
, and
Nosonovsky
,
M.
, 2003, “
Scale Effects in Friction Using Strain Gradient Plasticity and Dislocation-Assisted Sliding (Microslip)
,”
Acta Mater.
1359-6454,
51
, pp.
4331
4345
.
29.
Tambe
,
N. S.
, and
Bhushan
,
B.
, 2005, “
Friction Model for the Velocity Dependence of Nanoscale Friction
,”
Nanotechnology
0957-4484,
16
, pp.
2309
2324
.
30.
Karis
,
T. E.
, 2000, “
Water Adsorption on Thin Film Media
,”
J. Colloid Interface Sci.
0021-9797,
225
, pp.
196
203
.
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