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TOF-SIMS characterization of lubricants used in magnetic recording media
被引:3
|作者:
Zhang, BC
[1
]
Liu, HK
[1
]
Chang, S
[1
]
机构:
[1] Seagate Technol, Recording Media Grp, Fremont, CA 94539 USA
关键词:
TOF-SIMS;
lubricant;
Z-DOL;
Z-TETRAOL AM3001;
X-1P;
molecular weight;
D O I:
10.1016/j.apsusc.2004.03.085
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
In this study, TOF-SIMS was used to characterize lubricants used in magnetic recording media. Films of lubricants, perfluoropolyether (PFPE) Fomblin Z-DOL, Z-TETRAOL, AM3001, and cyclo triphosphazene X-1P were deposited on carbon overcoats of the magnetic disks from solutions. TOF-SIMS results showed that each thin film lubricant produces characteristic ions that are closely related to its chemical structure. Ratios of characteristic ions from the Z-DOL and carbon overcoat can be used to monitor the thickness and molecular weights of the lubricant. Molecular or molecule related ions have been observed for Z-DOL and X-1P. It was also found that the average mass of molecular ions correlates very well with the number average molecular weight determined by nuclear magnetic resonance (NMR) for Z-DOL. (C) 2004 Elsevier B.V. All rights reserved.
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页码:336 / 341
页数:6
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