Investigation of Nanoscale Heat Transfer and Flying Characteristics in Thermal Flying Height Control Sliders Considering Near-Field Radiation

被引：3
|
作者：
Li, Longqiu [1 ,2 ]
Zheng, Hao [3 ]
Talke, Frank E. [1 ]
机构：
[1] Univ Calif San Diego, La Jolla, CA 92093 USA
[2] Harbin Inst Technol, Harbin 150001, Peoples R China
[3] West Digital Corp, San Jose, CA USA
来源：
TRIBOLOGY LETTERS | 2015年 / 59卷 / 01期
关键词：
Near-field; Thermal radiation; Thermal flying height control; Head/disk interface; ENERGY;
D O I：
10.1007/s11249-015-0546-x
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Nanoscale heat transfer at the head/disk interface is investigated for thermal flying height control sliders in hard disk drives. Near-field radiation effects due to evanescent photo tunneling are considered in addition to thermal conduction. It is found that the maximum value of the heat flux due to near-field thermal radiation is comparable to that from heat conduction. Near-field thermal radiation is shown to cause a decrease in the thermal protrusion, resulting in a larger flying height than predicted for the case that near-field radiation is neglected. Results from this study are useful for the design of high-performance disk drives.
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页数：7
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