Humidity effects in magnetic recording

IEEE Transactions on Magnetics

Volumn 41, Issue 2, 2005, Pages 593-598

  Karis, T E ^a   Marchon, B ^a   Carter, M D ^a   Fitzpatrick, P R ^b,c   Oberhauser, J P ^d  

^a SAN JOSE RESEARCH CENTER   (United States)

^b UNIVERSITY OF VIRGINIA   (United States)

^c The University of Texas at Austin   (United States)

^d University of Virginia   (United States)

Author keywords

Dielectric measurements; Humidity; Lubricant rheology; Magnetic recording; Tribology; Ztetraol

Indexed keywords

ACTIVATION ENERGY; ATMOSPHERIC HUMIDITY; CHEMISORPTION; DIELECTRIC MATERIALS; DIELECTRIC RELAXATION; ELASTICITY; MONOLAYERS; PERMITTIVITY; TRIBOLOGY; VISCOSITY;

DIELECTRIC MEASUREMENTS; LUBRICANT RHEOLOGY; SURFACE DIFFUSION; ZTETRAOL;

MAGNETIC RECORDING;

EID: 14544301392     PISSN: 00189464     EISSN: None     Source Type: Journal    
DOI: 10.1109/TMAG.2004.838068     Document Type: Article

References (34)

1. Y. Li and F. E. Talke, "A model for the effect of humidity on stiction of the head/disk interface," Tribol. Trans., vol. 35, no. 3, pp. 429-434, 1992.
2. H. Tian and T. Matsudaira, "The role of relative humidity, surface roughness and liquid build-up on static friction behavior of the head/disk interface," Trans. ASME, J. Tribol., vol. 115, pp. 28-35, 1993.
3. V. Novotny and N. Staud, "Correlation between environmental and electrochemical corrosion of thin film magnetic recording media," J. Electrochem. Soc., vol. 135, no. 12, pp. 2931-2938, 1988.
4. T. E. Karis, G. W. Tyndall, and R. J. Waltman, "Lubricant bonding effects on thin film disk tribology," Tribol. Trans., vol. 44, no. 2, pp. 249-255, 2001.
5. T. E. Karis, "Tribochemistry in contact recording," Tribol. Lett., vol. 10, no. 3, pp. 149-162, 2001.
6. K. K. Merchant, S. Smith, and M. Yang, "Effect of relative humidity on lubricant performance," IEEE Trans. Magn., vol. 29, no. 6, pp. 3930-3932, Nov. 1993.
7. M. Smallen, J. K. Lee, A. Chao, and J. Enguero, "The role of disk carbon and slider in water adsorption," IEEE Trans. Magn., vol. 30, no. 6, pp. 4137-4139, Nov. 1994.
8. T. E. Karis and M. A. Tawakkul, "Water adsorption and friction on thin film magnetic recording disks," Tribol. Trans., vol. 46, no. 3, pp. 469-478, 2003.
9. T. E. Karis, "Water adsorption on thin film magnetic recording media," J. Coll. Int. Sci., vol. 225, no. 1, pp. 196-203, 2000.
10. B. G. Min, J. W. Choi, H. R. Brown, D. Y. Yoon, T. M. O'Connor, and M. S. Jhon, "Spreading characteristics of thin liquid films of perfluoropolyalkylethers on solid surfaces: Effects of chain-end functionality and humidity," Tribol. Lett., vol. 1, pp. 225-232, 1995.
11. T. E. Karis, "Nano-tribology of thin film magnetic recording media," in Nanotribology: Critical Assessment and Research Needs, S. M. Hsu and Z. C. Ying, Eds. Boston, MA: Kluwer, 2002, pp. 291-325.
12. R. Z. Lei and A. J. Gellman, "Humidity effects on PFPE lubricant bonding to a-CHx overcoats," Langmuir, vol. 16, pp. 6628-6635, 2000.
13. G. W. Tyndall, R. J. Waltman, and J. Pacansky, "Effect of adsorbed water on perfluoropoyether-lubricated magnetic recording disks," J. Appl. Phys., vol. 90, no. 12, pp. 6287-6296, 2001.
14. M. F. Toney, C. M. Mate, and K. A. Leach, "Roughness of molecularly thin perfluoropolyether polymer films," Appl. Phys. Lett., vol. 77, no. 20, pp. 3296-3298, 2000.
15. A. Braslau, P. S. Pershan, G. Swislow, B. M. Ocko, and J. Als-Nielsen, "X-ray reflectivity studies of a microemulsion surface," Phys. Rev. A, vol. 38, pp. 2457-2470, 1988.
16. C. M. Mate, M. R. Lorenz, and V. J. Novotny, "Atomic force microscopy of polymeric liquids," J. Chem. Phys., vol. 90, no. 12, pp. 7550-7555, 1989.
17. R. J. Waltman and A. G. Khurshudov, "The contribution of thin PFPE lubricants to slider-disk spacing. 2. effect of film thickness and lubricant end groups," Tribol. Lett., vol. 13, no. 3, pp. 197-202, 2002.
18. P. R. Dubin, K. D. Winn, L. P. Davis, and R. A. Cutler, "Degradation of co-based thin-film recording materials in selected corrosive environments," J. Appl. Phys., vol. 53, no. 3, pp. 2579-2581, 1982.
19. V. Brusic, M. Russak, R. Schad, G. Frankel, A. Selius, and D. DiMilia, "Corrosion of thin film magnetic disk: galvanic effects of the carbon overcoat," J. Electrochem. Soc., vol. 136, no. 1, pp. 42-46, 1989.
20. M. Yang and F. E. Talke, "Effects of gas composition, humidity and temperature on the tribology of the head/disk interface - part I: experiments," Tribol. Trans., vol. 39, no. 3, pp. 615-620, 1996.
21. _, "Effects of gas composition, humidity and temperature on the tribology of the head/disk interface - part II: model and analysis," Tribol. Trans., vol. 39, no. 3, pp. 691-697, 1996.
22. Y. Kimachi, M. Hoshino, and A. Terada, "Lubricant evaporation rate constants and head sliding durabilities of rigid magnetic disks," Tribol. Mech. Magn. Storage Syst., vol. VI, pp. 33-39, 1989.
23. R.-H. Wang, R. L. White, S. W. Meeks, B. G. Min, A. Kellock, A. Homola, and D. Yoon, "The interaction of perfluoro-polyether lubricant with hydrogenated carbon," IEEE Trans. Magn., vol. 32, no. 5, pp. 3777-3779, Sep. 1996.
24. B. Bhushan and Z. Zhao, "Friction/stiction and wear studies of magnetic thin-film disks with two polar perfluoropolyether lubricants," IEEE Trans. Magn., vol. 33, no. 1, pp. 918-925, Jan. 1997.
25. P. H. Kasai and V. Raman, "Z-dol versus Z-Tetraol: bonding and durability in magnetic hard disk application," Tribol. Lett., vol. 16, no. 1-2, pp. 29-36, 2004.
26. P. R. Segar and M. S. Jesh, "Effect of pressure-sensitive adhesive out-gassing on head-disk interface tribology," J. Inf. Storage Proc. Syst., vol. 1, pp. 125-133, 1999.
27. M. S. Jesh and P. R. Segar, "The effect of vapor phase chemicals on head/disk interface tribology," Tribol. Trans., vol. 42, no. 2, pp. 310-316, 1999.
28. T. E. Karis and U. V. Nayak, "Liquid nanodroplets on thin film magnetic recording disks," Tribol. Trans., vol. 47, no. 1, pp. 103-110, 2004.
29. E. A. Turi, Thermal Characterization of Polymeric Materials, 2nd ed. New York: Academic, 1997, pp. 11-112.
30. J. D. Ferry, Viscoelastic Properties of Polymers, 3rd ed. New York: Wiley, 1980, pp. 241-254.
31. T. E. Karis, T. P. Russell, Y. Gallot, and A. M. Mayes, "A lower critical ordering temperature in a diblock copolymer melt," Nature, vol. 368, pp. 729-731, 1994.
32. R.-N. Kono, M. S. Jhon, H. J. Choi, and A. Kim, "Effect of reactive end groups on the rheology of disk lubricant systems," IEEE Trans. Magn., vol. 35, no. 5, pp. 2388-2390, Sep. 1999.
33. P. J. W. Debye, Polar Molecules. New York: The Chemical Catalog Company, 1929.
34. T. E. Karis, B. Marchon, D. A. Hopper, and R. L. Siemens, "Perfluoropolyether characterization by nuclear magnetic resonance spectroscopy and gel permeation chromatography," J. Fluor. Chem., vol. 118, no. 1-2, pp. 81-94, 2002.