A spin-off ratio is used in this study to assess the repelling capability of a disk surface to thermal asperity for MR drives. A test methodology is described and a simple model is developed. Three types of spherical particles with different size and material properties are used in this study to evaluate the spin-off ratios of disks from various manufacturers and with different lubricant thickness and texture roughness. It is found that the dominant factors determining whether a particle is spun off a disk surface are the stiction force and the centrifugal force. Particle size and material properties, disk spinning speed, disk radius, surface tension and contact angle have significant effects on the spin-off ratio, while lubricant thickness and disk surface roughness have little effect. The manufacturing process and material used to produce a disk also affect how well the disk behaves when thermal asperity is a concern. [S0742-4787(00)03901-1]
Skip Nav Destination
Article navigation
January 2000
Technical Papers
The Spin-Off of Particles on a Magnetic Disk
Yufeng Li,
Yufeng Li
Samsung Information Systems America, San Jose, CA 95134
Search for other works by this author on:
Vinod Sharma
Vinod Sharma
Samsung Information Systems America, San Jose, CA 95134
Search for other works by this author on:
Yufeng Li
Samsung Information Systems America, San Jose, CA 95134
Vinod Sharma
Samsung Information Systems America, San Jose, CA 95134
Contributed by the Tribology Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS and presented at the STLE/ASME Tribology Conference, Orlando, FL, October 10–13, 1999. Manuscript received by the Tribology Division February 1, 1999; revised manuscript received June 30, 1999. Paper No. 99-Trib-31. Associate Technical Editor: J. L. Streator.
J. Tribol. Jan 2000, 122(1): 293-299 (7 pages)
Published Online: June 30, 1999
Article history
Received:
February 1, 1999
Revised:
June 30, 1999
Citation
Li , Y., and Sharma , V. (June 30, 1999). "The Spin-Off of Particles on a Magnetic Disk ." ASME. J. Tribol. January 2000; 122(1): 293–299. https://doi.org/10.1115/1.555356
Download citation file:
Get Email Alerts
Cited By
Reviewer’s Recognition
J. Tribol (April 2025)
Tribological Evaluation of Coatings in Fuel Environments
J. Tribol (July 2025)
Related Articles
Solid Third Body Analysis Using a Discrete Approach: Influence of Adhesion and Particle Size on Macroscopic Properties
J. Tribol (July,2002)
Adhesion Forces for Sub-10 nm Flying-Height Magnetic Storage Head Disk Interfaces
J. Tribol (April,2004)
A Model for Temperature Rise of Polishing Process Considering Effects of Polishing Pad and Abrasive
J. Tribol (July,2004)
Effect of Surface Energy on the Wear Process
J. Basic Eng (June,1964)
Related Proceedings Papers
Related Chapters
Characterization and evaluation
Biocompatible Nanomaterials for Targeted and Controlled Delivery of Biomacromolecules
Influence of Particle Size and Temperature on Gasification Performance in Externally Heated Gasifier
International Conference on Software Technology and Engineering, 3rd (ICSTE 2011)
Trifluralin 10% Granular Formulation Prepared on Biodac® and Clay for the Control of Annual Ryegrass, Giant Foxtail and Carpet Weed.
Pesticide Formulations and Application Systems: 17th Volume