Molecular Dynamics Simulation of Lubricant Transfer at the Head-Disk Interface

被引：14

作者：

Seo, Young Woo ^{[1
]}

Pan, Deng ^{[2
]}

Ovcharenko, Andrey ^{[3
]}

Yang, Min ^{[3
]}

Talke, Frank E. ^{[1
]}

机构：

[1] Univ Calif San Diego, Ctr Magnet Recording Res, San Diego, CA 92093 USA

[2] Harbin Inst Technol, Sch Mech Engn, Harbin 150001, Peoples R China

[3] Western Digital Corp, San Jose, CA 95138 USA

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2014年 / 50卷 / 11期

关键词：

Head-disk interface; lubricant transfer; molecular dynamics simulation; POLYMER MELTS; SLIDER; SURFACE;

D O I：

10.1109/TMAG.2014.2322353

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Molecular dynamics simulation is used to investigate lubricant transfer at the head-disk interface as a function of local pressure change, disk velocity, air bearing design, lubricant bonding ratio, head-disk spacing, and finite width of air bearing. A coarse-grained bead-spring model is used in conjunction with the Lennard-Jones potential, a short-range attractive polar potential, and a finitely extensible nonlinear elastic potential. The results show that lubricant transfer increases as a function of local pressure change, disk velocity, and air bearing width, but decreases with an increase in air bearing convergence angle, lubricant bonding ratio, and slider-disk spacing.

引用

页数：4

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