Nowadays, heat assisted magnetic recording (HAMR) technology has been proposed to reach higher storage density. In this paper, the molecular dynamic (MD) simulation method is used to investigate the damage and recovery of the lubricant perfluoropolyethers (PFPE) layer under rapid heating and cooling in HAMR. Full-atom model for three-dimensional slider-lubricants-disk substrate system are built. The lubricant adheres to the diamond like carbon (DLC) substrate, and the space between slider and lubricant is filled with helium atoms. The results show that with higher heating speed, the PFPE will be easier to evaporate and form lubricant bridge. In addition, the thickness and stability of the lubricant bridge are significantly affected by the heating speed and the rotation speed of disk.
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ASME 2016 Conference on Information Storage and Processing Systems
June 20–21, 2016
Santa Clara, California, USA
Conference Sponsors:
- Information Storage and Processing Systems Division
ISBN:
978-0-7918-4988-0
PROCEEDINGS PAPER
Study of the Formation and Break of Lubricant Bridge in the Head Disk Interface Using Molecular Dynamic Method
Hui Li
Hui Li
Wuhan University, Wuhan, China
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Xiangyu Dai
Wuhan University, Wuhan, China
Xiao Lei
Wuhan University, Wuhan, China
Hui Li
Wuhan University, Wuhan, China
Paper No:
ISPS2016-9621, V001T01A019; 3 pages
Published Online:
September 23, 2016
Citation
Dai, X, Lei, X, & Li, H. "Study of the Formation and Break of Lubricant Bridge in the Head Disk Interface Using Molecular Dynamic Method." Proceedings of the ASME 2016 Conference on Information Storage and Processing Systems. ASME 2016 Conference on Information Storage and Processing Systems. Santa Clara, California, USA. June 20–21, 2016. V001T01A019. ASME. https://doi.org/10.1115/ISPS2016-9621
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