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首页> 外文期刊>IEEE Transactions on Magnetics >Friction Characteristics of Ultrathin Perfluoropolyether Boundary Lubricant Films Subjected to Laser Irradiation Heating in Heat-Assisted Magnetic Recording
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Friction Characteristics of Ultrathin Perfluoropolyether Boundary Lubricant Films Subjected to Laser Irradiation Heating in Heat-Assisted Magnetic Recording

机译：热辅助磁记录中激光辐照加热下超薄全氟聚醚边界润滑膜的摩擦特性

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摘要

We investigated the laser-heating-temperature dependence of the friction characteristics of magnetic disks coated with boundary lubricant films by using a pin-on-disk tester and discussed the fundamental characteristics observed. In the contact area of the glass pin and disk, we observed the area that showed a buildup and depletion of the lubricant film thickness. The amount of buildup and depletion increased with increasing heating temperature. It was found that the friction coefficient of each lubricant film initially decreased as the temperature increased. Thereafter, the minimum value of the friction coefficient of each test lubricant occurred at a specific temperature, resulting in an increase in the friction coefficient inversely as the temperature further increased. It was suggested that the specific temperature corresponds to the transition temperature at which the test lubricant film evaporates. In addition, it was also suggested that the thermal durability of the lubricant film improved because of ultraviolet treatment.
机译：我们使用针盘测试仪研究了涂有边界润滑膜的磁盘的摩擦特性对激光加热温度的依赖性，并讨论了观察到的基本特性。在玻璃销钉和圆盘的接触区域，我们观察到了润滑膜厚度积聚和耗尽的区域。堆积和消耗的量随着加热温度的升高而增加。已经发现，每个润滑剂膜的摩擦系数最初随着温度的升高而降低。此后，每种测试润滑剂的摩擦系数的最小值出现在特定温度下，导致摩擦系数随着温度的升高而反方向增加。建议该特定温度对应于测试润滑剂膜蒸发的转变温度。另外，还暗示了由于紫外线处理，润滑膜的热耐久性提高。

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