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Erschienen in: Tribology Letters 2/2010

01.08.2010 | Original Paper

The Effect of PFPE Film Thickness and Molecular Polarity on the Pick-Up of Disk Lubricant by a Low-Flying Slider

verfasst von: R. J. Waltman, H. Deng, G. J. Wang, H. Zhu, G. W. Tyndall

Erschienen in: Tribology Letters | Ausgabe 2/2010

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Abstract

Lubricant pick-up by a low-flying slider is investigated for hydroxyl-terminated perfluoropolyethers as a function of the number of hydroxyl (OH) groups and of film thickness on the surface of finished rigid disks. The total number of hydroxyl (OH) groups per main chain is 2, 4, and 8 for Zdol, Z-Tetraol, and ZTMD, respectively. The amount of disk lubricant that is picked up by the low-flying slider decreases with decreasing PFPE film thickness and increasing number of OH functional groups. The results are discussed in terms of the disjoining pressure characterizing the lubricant film on the disk surface.

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Literatur
1.
Zurück zum Zitat Pit, R., Marchon, B., Meeks, S., Velidandla, V.: Formation of lubricant “moguls” at the head/disk interface. Tribol. Lett. 10, 133–142 (2001)CrossRef Pit, R., Marchon, B., Meeks, S., Velidandla, V.: Formation of lubricant “moguls” at the head/disk interface. Tribol. Lett. 10, 133–142 (2001)CrossRef
2.
Zurück zum Zitat Dai, Q., Saint-Olive, C., Pit, R., Marchon, B.: Genesis and evolution of lubricant moguls. IEEE Trans. Magn. 38, 2111–2114 (2002)CrossRefADS Dai, Q., Saint-Olive, C., Pit, R., Marchon, B.: Genesis and evolution of lubricant moguls. IEEE Trans. Magn. 38, 2111–2114 (2002)CrossRefADS
3.
Zurück zum Zitat Marchon, B., Karis, T., Dai, Q., Pit, R.: A model for lubricant flow from disk to slider. IEEE Trans. Magn. 39, 2447–2449 (2003)CrossRefADS Marchon, B., Karis, T., Dai, Q., Pit, R.: A model for lubricant flow from disk to slider. IEEE Trans. Magn. 39, 2447–2449 (2003)CrossRefADS
4.
Zurück zum Zitat Dai, Q., Hendriks, F., Marchon, B.: Modeling the washboard effect at the head/disk interface. J. Appl. Phys. 96, 696–703 (2004)CrossRefADS Dai, Q., Hendriks, F., Marchon, B.: Modeling the washboard effect at the head/disk interface. J. Appl. Phys. 96, 696–703 (2004)CrossRefADS
5.
Zurück zum Zitat Waltman, R.J., Tyndall, G.W.: Lubricant and overcoat systems for rigid magnetic recording media. J. Magn. Soc. Jpn 26, 97–108 (2002) Waltman, R.J., Tyndall, G.W.: Lubricant and overcoat systems for rigid magnetic recording media. J. Magn. Soc. Jpn 26, 97–108 (2002)
6.
Zurück zum Zitat Mate, C.M., Novotny, V.J.: Molecular conformation and disjoining pressure of polymeric liquid films. J. Chem. Phys. 94, 8420–8427 (1991)CrossRefADS Mate, C.M., Novotny, V.J.: Molecular conformation and disjoining pressure of polymeric liquid films. J. Chem. Phys. 94, 8420–8427 (1991)CrossRefADS
7.
Zurück zum Zitat Guo, X.-C., Knigge, B., Marchon, B., Waltman, R.J., Carter, M., Burns, J.: Multidentate functionalized lubricant for ultralow head/disk spacing in a disk drive. J. Appl. Phys. 100, 044306-1–044306-8 (2006)ADS Guo, X.-C., Knigge, B., Marchon, B., Waltman, R.J., Carter, M., Burns, J.: Multidentate functionalized lubricant for ultralow head/disk spacing in a disk drive. J. Appl. Phys. 100, 044306-1–044306-8 (2006)ADS
8.
Zurück zum Zitat Toney, M.F., Mate, C.M., Pocker, D.J.: Calibrating ESCA and ellipsometry measurements of perfluoropolyether lubricant thickness. IEEE Trans. Magn. 34, 1774–1776 (1998)CrossRefADS Toney, M.F., Mate, C.M., Pocker, D.J.: Calibrating ESCA and ellipsometry measurements of perfluoropolyether lubricant thickness. IEEE Trans. Magn. 34, 1774–1776 (1998)CrossRefADS
9.
Zurück zum Zitat Adamson, A.W.: Physical Chemistry of Surfaces, 5th edn. Wiley, New York (1990) Adamson, A.W.: Physical Chemistry of Surfaces, 5th edn. Wiley, New York (1990)
10.
Zurück zum Zitat Owens, D.K., Wendt, R.D.: Estimation of the surface free energy of polymers. J. Appl. Polym. Sci. 13, 1741–1747 (1969)CrossRef Owens, D.K., Wendt, R.D.: Estimation of the surface free energy of polymers. J. Appl. Polym. Sci. 13, 1741–1747 (1969)CrossRef
11.
Zurück zum Zitat Kaelbe, D.H.: Dispersion-polar surface tension properties of organic solids. J. Adhes. 2, 66–81 (1970)CrossRef Kaelbe, D.H.: Dispersion-polar surface tension properties of organic solids. J. Adhes. 2, 66–81 (1970)CrossRef
12.
Zurück zum Zitat Li, N., Zheng, L., Meng, Y., Bogy, D.B.: Experimental study of head-disk interface flyability and durability at sub-1-nm clearance. IEEE Trans. Magn. 45, 3624–3627 (2009)CrossRefADS Li, N., Zheng, L., Meng, Y., Bogy, D.B.: Experimental study of head-disk interface flyability and durability at sub-1-nm clearance. IEEE Trans. Magn. 45, 3624–3627 (2009)CrossRefADS
13.
Zurück zum Zitat Waltman, R.J., Kobayashi, N., Shirai, K., Khurshudov, A., Deng, H.: The tribological properties of a new cyclotriphosphazene-terminated perfluoropolyether lubricant. Tribol. Lett. 16, 151–162 (2004)CrossRef Waltman, R.J., Kobayashi, N., Shirai, K., Khurshudov, A., Deng, H.: The tribological properties of a new cyclotriphosphazene-terminated perfluoropolyether lubricant. Tribol. Lett. 16, 151–162 (2004)CrossRef
14.
Zurück zum Zitat Dagastine, R.R., White, L.R., Jones, P.M., Hsia, Y.-T.: Effect of van der Waals forces on molecularly thin lubricant in the magnetic storage head-disk interface. J. Appl. Phys. 98, 124906-1–124906-6 (2005)CrossRefADS Dagastine, R.R., White, L.R., Jones, P.M., Hsia, Y.-T.: Effect of van der Waals forces on molecularly thin lubricant in the magnetic storage head-disk interface. J. Appl. Phys. 98, 124906-1–124906-6 (2005)CrossRefADS
15.
Zurück zum Zitat Smallen, M.J., Huang, H.W.: Effect of disjoining pressure on the disk-to-head lubricant transfer. IEEE Trans. Magn. 39, 2495–2497 (2003)CrossRefADS Smallen, M.J., Huang, H.W.: Effect of disjoining pressure on the disk-to-head lubricant transfer. IEEE Trans. Magn. 39, 2495–2497 (2003)CrossRefADS
16.
Zurück zum Zitat Israelachvili, J.N.: Intermolecular and Surface Forces with Applications to Colloidal and Biological Systems. Academic Press, London (1985) Israelachvili, J.N.: Intermolecular and Surface Forces with Applications to Colloidal and Biological Systems. Academic Press, London (1985)
17.
Zurück zum Zitat Tyndall, G.W., Karis, T.E., Jhon, M.S.: Spreading profiles of molecularly thin perfluoropolyether films. Tribol. Trans. 42, 463–470 (1999)CrossRef Tyndall, G.W., Karis, T.E., Jhon, M.S.: Spreading profiles of molecularly thin perfluoropolyether films. Tribol. Trans. 42, 463–470 (1999)CrossRef
18.
Zurück zum Zitat Forcada, M.L.: Instability in a system of two interacting liquid films: formation of liquid bridges between solid surfaces. J. Chem. Phys. 98, 638–643 (1993)CrossRefADS Forcada, M.L.: Instability in a system of two interacting liquid films: formation of liquid bridges between solid surfaces. J. Chem. Phys. 98, 638–643 (1993)CrossRefADS
19.
Zurück zum Zitat Christenson, H.K.: Capillary condensation due to vander Waals attraction in wet slits. Phys. Rev. Lett. 73, 1821–1824 (1994)CrossRefPubMedADS Christenson, H.K.: Capillary condensation due to vander Waals attraction in wet slits. Phys. Rev. Lett. 73, 1821–1824 (1994)CrossRefPubMedADS
20.
Zurück zum Zitat Tyndall, G., Waltman, R.J.: Thermodynamics of confined perfluoropolyether films on amorphous carbon surfaces determined from the time-dependent evaporation kinetics. J. Phys. Chem. B 104, 7085–7095 (2000)CrossRef Tyndall, G., Waltman, R.J.: Thermodynamics of confined perfluoropolyether films on amorphous carbon surfaces determined from the time-dependent evaporation kinetics. J. Phys. Chem. B 104, 7085–7095 (2000)CrossRef
21.
Zurück zum Zitat Khurshudov, A., Waltman, R.J.: The contribution of thin PFPE lubricants to slider-disk spacing. Tribol. Lett. 11, 143–149 (2001)CrossRef Khurshudov, A., Waltman, R.J.: The contribution of thin PFPE lubricants to slider-disk spacing. Tribol. Lett. 11, 143–149 (2001)CrossRef
22.
Zurück zum Zitat Waltman, R.J., Raman, V., Burns, J.: The contribution of thin PFPE lubricants to slider-disk spacing. 3. Effect of main chain flexibility. Tribol. Lett. 17, 239–244 (2004)CrossRef Waltman, R.J., Raman, V., Burns, J.: The contribution of thin PFPE lubricants to slider-disk spacing. 3. Effect of main chain flexibility. Tribol. Lett. 17, 239–244 (2004)CrossRef
Metadaten
Titel
The Effect of PFPE Film Thickness and Molecular Polarity on the Pick-Up of Disk Lubricant by a Low-Flying Slider
verfasst von
R. J. Waltman
H. Deng
G. J. Wang
H. Zhu
G. W. Tyndall
Publikationsdatum
01.08.2010
Verlag
Springer US
Erschienen in
Tribology Letters / Ausgabe 2/2010
Print ISSN: 1023-8883
Elektronische ISSN: 1573-2711
DOI
https://doi.org/10.1007/s11249-010-9638-9

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