In this paper, from the viewpoint of lubricant spreading, we investigate the effect of lube textures which mean a nonuniform distribution of bonding strength between lubricant molecules and the disk surface. Lube textures were formed by irradiating ultraviolet rays through a stripe-patterned mask onto a magnetic disk surface which was partially coated with one-monolayer film of perfluoropolyether. Surface characteristics of the lube textures were evaluated by surface energies ascertained from contact angle measurements. Spreading of the lubricant film was measured by scanning microellipsometry on the striped lube textures in the directions parallel and perpendicular to the stripes. The thickness-dependent diffusion coefficients extracted from the spreading profiles show that lubricant spreading in the regime of film thickness less than 0.2 nm is faster along the stripes, indicating the possibility of controlling the behavior of a lubricant film with lube textures.
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STLE/ASME 2003 International Joint Tribology Conference
October 26–29, 2003
Ponte Vedra Beach, Florida, USA
Conference Sponsors:
- Tribology Division
ISBN:
0-7918-3705-X
PROCEEDINGS PAPER
Spreading Characteristics of Monolayer Lubricant Film on Surfaces With Lube Textures
Hedong Zhang,
Hedong Zhang
Nagoya University, Nagoya, Aichi, Japan
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Yasunaga Mitsuya,
Yasunaga Mitsuya
Nagoya University, Nagoya, Aichi, Japan
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Natsuko Fukuoka,
Natsuko Fukuoka
Nagoya University, Nagoya, Aichi, Japan
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Kenji Fukuzawa
Kenji Fukuzawa
Nagoya University, Nagoya, Aichi, Japan
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Hedong Zhang
Nagoya University, Nagoya, Aichi, Japan
Yasunaga Mitsuya
Nagoya University, Nagoya, Aichi, Japan
Natsuko Fukuoka
Nagoya University, Nagoya, Aichi, Japan
Kenji Fukuzawa
Nagoya University, Nagoya, Aichi, Japan
Paper No:
2003-TRIB-341, pp. 77-83; 7 pages
Published Online:
January 7, 2009
Citation
Zhang, H, Mitsuya, Y, Fukuoka, N, & Fukuzawa, K. "Spreading Characteristics of Monolayer Lubricant Film on Surfaces With Lube Textures." Proceedings of the STLE/ASME 2003 International Joint Tribology Conference. Magnetic Storage Symposium: Frontiers of Magnetic Hard Disk Drive Tribology and Technology. Ponte Vedra Beach, Florida, USA. October 26–29, 2003. pp. 77-83. ASME. https://doi.org/10.1115/2003-TRIB-341
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