We measured the dynamic adhesion force when spherical sliders with a radius of 1 and 2 mm collided with smooth magnetic disks with lubricant layers of zero, 1, 2, and 3 nm thickness to clarify the dynamic interfacial force between a slider and disk in the nanometer region of flying height. From the measured slider velocity, we calculated the relationship between acceleration (acting force) and displacement. We found that a strong adhesion force observed at zero lubricant vanishes when 1-nm thick lubricant with UV is applied. As the mobile lubricant thickness was increased, we observed a clear dynamic adhesion force at the instant of separation. These results indicate that adhesion force is most likely to result from meniscus formation.
- Tribology Division
Dynamic Indentation Characteristics of Spherical Sliders Colliding With Stationary Magnetic Disks With a Thin Lubricant Layer
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Ono, K, & Nakagawa, K. "Dynamic Indentation Characteristics of Spherical Sliders Colliding With Stationary Magnetic Disks With a Thin Lubricant Layer." Proceedings of the ASME/STLE 2007 International Joint Tribology Conference. ASME/STLE 2007 International Joint Tribology Conference, Parts A and B. San Diego, California, USA. October 22–24, 2007. pp. 765-767. ASME. https://doi.org/10.1115/IJTC2007-44012
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