Molecular dynamic simulation on the thermal degradation of PFPE lubricant for HAMR disk
2022 IEEE 33rd Magnetic Recording Conference (TMRC)(2022)
摘要
In writing process of heat-assisted magnetic recording (HAMR) disk, the pulse laser can cause degradation of PFPE lubricant on the surface of the disk [1], indirectly leading to deterioration of the tribological performance. The degradation of PFPE lubricants under different conditions has been investigated [2]–[3]. However, the thermal degradation mechanism of D-4OH lubricant has not yet been clearly clarified. Understanding the thermal degradation mechanism of D-4OH lubricant is beneficial for the optimization of HAMR head-disk interface (HDI).
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关键词
HDI,tribological performance,HAMR head-disk interface,D-4OH lubricant,thermal degradation mechanism,pulse laser,heat-assisted magnetic recording disk,PFPE lubricant,molecular dynamic simulation
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