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RESEARCH PAPERS

Spreading of Novel Cyclotriphosphazine-Terminated PFPE Films on Carbon Surfaces

[+] Author and Article Information
Norio Tagawa, Tadao Tateyama, Atsunobu Mori

Department of Mechanical Engineering, Faculty of Engineering, Kansai University, Suita, Osaka 564-8680, Japan

Nagayoshi Kobayashi, Yoshinobu Fujii, Masako Ikegami

Matsumura Oil Research Corporation, Kobe, Hyogo 650-0047, Japan

J. Tribol 126(4), 751-754 (Nov 09, 2004) (4 pages) doi:10.1115/1.1760765 History: Received June 11, 2003; Revised March 16, 2004; Online November 09, 2004
Copyright © 2004 by ASME
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References

Menon, A. K., 1999, “Critical Requirement for 100 Gb/in2 Head/Media Interface,” Proceeding of the Symposium on Interface Technology Toward 100 Gb/in2 , TRIB-Vol. 9, pp. 1–9.
Novotny,  V. J., 1990, “Migration of Liquid Polymers on Solid Surfaces,” J. Chem. Phys., 92, pp. 3189–3196.
Min,  B. G., Choi,  J. W., Brown,  H. R., Yoon,  D. Y., O’Connor,  T. M., and Jhon,  M. S., 1995, “Spreading Characteristics of Thin Liquid Films of Perfluoropolyalkylethers on Solid Surfaces: Effect of Chain-End Functionality and Humidity,” Tribol. Lett., 1, pp. 225–232.
O’Connor,  T. M., Jhon,  M. S., Bauer,  C. L., Min,  B. G., Yoon,  D. Y., and Karis,  T. E., 1995, “Surface Diffusion and Flow Activation Energies of Perfluoropolyalkylether,” Tribol. Lett., 1, pp. 219–223.
Ma,  X., Gui,  J., Smoliar,  L., Grannen,  K., Marchon,  B., Jhon,  M. S., and Bauer,  C. L., 1999, “Spreading of Perfluoropolyalkylether Films on Amorphous Carbon Surfaces,” J. Chem. Phys., 110, pp. 3129–3137.
Tyndall,  G. W., Karis,  T. E., and Jhon,  M. S., 1999, “Spreading Profiles of Molecularly Thin Perfluoropolyether Films,” Tribol. Trans., 42(3), pp. 463–470.
Ma,  X., Gui,  J., Smoliar,  L., Grannen,  K., Marchon,  B., Jhon,  M. S., and Bauer,  C. L., 1999, “Complex Terraced Spreading of Perfluoropolyalkylether Films on Carbon Surfaces,” Phys. Rev. E, 59, pp. 722–727.
Ma, X., 1998, “Spreading of Perfluoropolyalkylether Films on Amorphous Carbon Surfaces,” Ph.D. thesis, Carnegie Mellon University.
Xu,  L., Ogletree,  D. F., Salmeron,  M., Tang,  H., Gui,  J., and Marchon,  B., 2000, “De-Wetting of Lubricants on Hard Disks,” J. Chem. Phys., 112, pp. 2952–2957.
Matano,  C., 1933, “On the Relation Between the Diffusion-Coefficient and Concentrations of Solid Metals,” Japan. J. Phys.,8, pp. 109–113.

Figures

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Spreading profiles of novel cyclotriphosphazine-terminated PFPE lubricant: (a) A20H2000; (b) A20H4000; and (c) S-3500
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Spreading distance versus time
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Spreading distance squared versus time
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Apparent diffusion coefficient versus work of adhesion
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Spreading profile for A20H-4000 (40 A)
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Thickness dependent diffusion coefficient for (a) A20H-2000 and (b) A20H-4000
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Estimated existing conformation of the molecules on carbon surfaces

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