Lubrication for Heat-Assisted Magnetic Recording Media

Zhang, J.; Ji, R.; Xu, Jianwei; Ng, J.K.P.; Xu, Baoxi; Hu, Shengbin; Yuan, Hongxing; Piramanayagam, S. N.

doi:10.1109/tmag.2006.878650

Cited by 32 publications

(10 citation statements)

References 4 publications

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“…Lube-1 + shows a similar difference between takeoff and touchdown speeds to that for Z-dol2000. It is interesting that this result completely agree with the behaviors of lubricant mobility 3) . Therefore, it suggests that the difference between takeoff and touchdown speed is caused by the lubricant mobility.…”

Section: Properties Of the Lubricant Filmssupporting

confidence: 79%

“…The testing lubricants were commercially available product Z-dol2000, A20H2000, and a recently developed lubricant Lube-1 + which is a thermally improved Lube-1 3) . The lubricant films were deposited using dip-coating technique with DSI developed Advanced Lube-Line-Free Deposition System.…”

Section: Materials and Sample Characterizationsmentioning

confidence: 99%

“…We have reported 3) that the thermal stability of the synthesized lubricant Lube-1 has reach to 328 o C. Recently, this thermal stability has been pushed to 404 o C in the nitrogen purged environment and 1 o C lower in the air under 20 o C/min heating rate. Figure 3 shows the TGA results for Lube-1 + .…”

Section: Properties Of the Lubricant Filmsmentioning

confidence: 99%

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Improvement of Thermal Stability of the Lubricant Film for the Heat Assisted Magnetic Recording Media

Zhang

et al. 2008

J. Magn. Soc. Jpn.

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This paper described a specially synthesized novel polymer lubricant with high thermal stability for heat assisted magnetic recording media. The contact angle and touchdown/takeoff behaviors of the lubricant were investigated by comparing to commercial available lubricants. A thermal stability of the polymer lubricant at 449 o C has been achieved. The results suggest that the takeoff/touchdown behavior of a slider over a lubricated hard disk depends on the molecular interactions of the lubricant molecules. Thermal stabilities of all the tested lubricants were found increasing with the heating rate and follow the same trend. A higher thermal stability of the lubricant film under flash heating and cooling conditions is predicted. A heat-sink layer was experimentally confirmed as effective approach to reduce the peak temperature duration onto the lubricant or carbon overcoat.

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Section: Properties Of the Lubricant Filmssupporting

confidence: 79%

Section: Materials and Sample Characterizationsmentioning

confidence: 99%

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Improvement of Thermal Stability of the Lubricant Film for the Heat Assisted Magnetic Recording Media

Zhang

et al. 2008

J. Magn. Soc. Jpn.

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“…Wu [1,4] analyzed the lubricant flow dynamics model under a scanning laser and found that a ridge circumscribing the depletion zone was formed due to thermocapillary stresses. Zhang et al [2] developed a novel lubricant with good thermal stability and confirmed that the newly developed lubricant film could resist laser irradiation without damage. Tagawa et al [3] experimentally investigated lubricant depletion characteristics caused by laser heating and confirmed that the ridge reported by Wu [1,4] was formed due to thermocapillary stresses.…”

Section: Introductionmentioning

confidence: 93%

“…The problem is that the lubricant used is depleted when these films are heated to high temperatures by using laser beams to reduce magnetic coercivity. Theoretical and experimental studies have been carried out to understand the lubricant depletion mechanism caused due to laser heating in TAMR systems [1][2][3][4][5]. Wu [1,4] analyzed the lubricant flow dynamics model under a scanning laser and found that a ridge circumscribing the depletion zone was formed due to thermocapillary stresses.…”

Section: Introductionmentioning

confidence: 99%