Spreading Mechanism of PFPE Lubricant on the Magnetic Disks
Spreading Mechanism of PFPE Lubricant on the Magnetic Disks
复制标题
PFPE 润滑剂在磁盘上的扩散机制
DOI：
10.1115/1.1308030
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发表时间：
2001
影响因子：
2.5
通讯作者：
H. Matsumoto
中科院分区：
文献类型：
--
作者：
H. Tani;H. Matsumoto
本文讨论了磁头在磁盘上滑动时的润滑机理。长时间的静置可以降低摩擦片的磨损和摩擦力。这一结果表明，润滑剂回流到接触区域降低了织构微凸体的磨损。其次，用Monte Carlo方法计算了润滑剂膜的分子铺展行为，以估计润滑剂回收速度的影响。测量了通过蚀刻技术制成的润滑剂补充到较薄的润滑剂区域中的情况。润滑剂补充的测量曲线与使用铺展模型计算的曲线大致一致。可以清楚地估计回流速度在环境温度、去除润滑剂区域的半径和润滑剂膜的厚度的各种情况下变化。在实验上，温度的依赖性，去除润滑剂区域的半径，和润滑剂厚度进行了测量在阻力测试。该润滑剂扩散模型充分解释了这些结果。
The lubrication mechanism when the magnetic head is sliding on the magnetic disk in the drag test with cyclic interval rest periods, is discussed. A long rest period decreased the wear of disks and friction force. This result indicated that the reflow of lubricant into the contact areas decreased the wear of texture asperities Next, the molecular spreading behavior of a lubricant film was calculated by Monte Carlo method to estimate the effect of lubricant recovering velocities. The lubricant replenishment into a thinner lubricant area made by an etching technique was measured. The measured profiles of lubricant replenishment were approximately agreed with the calculated profiles using a spreading model. It was clearly estimated that the reflow velocities changed in various cases of the environmental temperature, the radius of removal lubricant area, and the thickness of the lubricant films. Experimentally, the dependencies of temperature, the radius of removal lubricant area, and the lubricant thickness were measured in the drag test. This lubricantspreading model adequately explained these results.