R&D: Novel Ionic-Liquid-Type Lubricant for HAMR System
Lubricant depletion quantities of ILs were small and comparable to that of PFPEs with highest bond ratio.
This is a Press Release edited by StorageNewsletter.com on July 8, 2019 at 2:30 pmIEEE Transactions on Magnetics has published an article written by Kouki Hatsuda, Business Innovation Division, Nobuo Tano, Business Innovation Division, Dexerials Corporation, Shimotsuke 323-0194, and Hiroshi Tan, Department of Mechanical Engineering, Kansai University, Suita 564-8680, Japan.
Abstract: ”In this paper, a new thermally stable ionic-liquid (IL)-type lubricant has been developed. Since heat is applied intensively on the surface of magnetic disks in heat-assisted magnetic recording (HAMR) systems, a thermally stable lubricant is expected to prolong the life of HAMR drives. To verify this concept experimentally, the depletion of ultrathin film lubricants was evaluated for IL- and perfluoropolyether (PFPE)-type lubricants by far-field laser irradiation. For PFPE, lubricant depletion decreased with increasing bond ratio, whereas lubricant depletion for IL did not depend on its bond ratio. The lubricant depletion quantities of ILs were small and comparable to that of PFPEs with the highest bond ratio.”
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