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首页> 外文会议>American Society of Mechanical Engineers(ASME)/Society of Tribologists and Lubrication Engineers(STLE) International Joint Tribology Conference; 20071022-24; San Diego,CA(US) >DEPLETION OF MOLECULARY THIN LUBRICANT UNDER FLYING HEAD IN HARD DISK DRIVES
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DEPLETION OF MOLECULARY THIN LUBRICANT UNDER FLYING HEAD IN HARD DISK DRIVES

机译：硬盘驱动器中飞扬头下的稀薄分子润滑剂的消耗

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In Hard Disk Drives, lubricants are very important materials to reduce head and disk wear. Therefore, it is necessary to know the lubricant depletion under flying heads. Lubricant depletion due to flying heads has been studied experimentally. We developed simulation program to calculate numerically the change in lubricant thickness under a flying head on a thin-film magnetic disk from 10nm thick lubricant film. In recent HDDs, the lubricants thickness has become molecularly thin and polar lubricants have been used. In this paper, we took account of thickness-dependent lubricants diffusion and viscosity in our simulations to calculate a 1.2 nm thick polar lubricant film used in recent HDDs. The simulated results considering the thickness-dependent diffusion and viscosity showed that depletion was small in molecularly thin lubricant films. We considered it necessary to include thickness-dependent diffusion and viscosity in lubricant depletion simulation.
机译：在硬盘驱动器中，润滑剂是减少磁头和磁盘磨损的非常重要的材料。因此，有必要知道飞扬头下的润滑剂消耗。实验研究了由于飞扬引起的润滑剂消耗。我们开发了模拟程序来从10nm厚的润滑膜上数值计算薄膜磁盘上飞扬头下的润滑剂厚度变化。在最近的HDD中，润滑剂的厚度已经变得分子薄，并且已经使用了极性润滑剂。在本文中，我们在模拟中考虑了与厚度有关的润滑剂扩散和粘度，以计算最近的硬盘驱动器中使用的1.2 nm厚的极性润滑剂膜。考虑到厚度依赖性扩散和粘度的模拟结果表明，分子薄的润滑膜中的损耗很小。我们认为有必要在润滑剂消耗模拟中包括与厚度有关的扩散和粘度。

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