Wear and Boundary Lubrication of Oxide Coated Magnetic Disks

氧化物涂层磁盘的磨损和边界润滑

• 批准号: 8709588
• 负责人: Frank Talke
• 金额: $ 22.58万
• 依托单位: University of California-San Diego
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-08-01 至 1991-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8709588&HistoricalAwards=false
• 关键词: Wear; Boundary; Lubrication; Oxide; Coated

In magnetic disk files and tape drives, the read/write element is separated from the magnetic medium by a thin air bearing. In present "state of the art" disk file, the air bearing flying height is approximately .33 um, and a reduction to less than .2 um is anticapated in the near future. At those small spacings, contacts between the read/write head and the magnetic medium are unavoidable. In addition contacts occur during start/stop of the file and during track seeking. Since these contacts cause wear of the head/disk interface, a thorough understantding of head/disk tribology is required, and extreme care must be exercised in the design of the individual components to guarantee sufficient life time. This project is concerned with the mechanisms of wear and boundary lubrication of oxide coated rigid magnetic disks. Friction and wear experiments will be conducted on unlubricated and lubricated magnetic medium, and accelerated wear tests will be designed. Analytical surface instrumentation will be used to investigate lubricant distribution on the disk, and theoretical modeling of the head/disk wear mechanism will be conducted.

在磁盘文件和磁带驱动器中，读/写元件是 通过薄的空气轴承与磁性介质分离。了近现代 “最先进的”磁盘文件，空气轴承飞行高度是 约0.33 μ m，并且减小到小于0.2 μ m是反帽的 在近期在这些小间距处， 读/写头和磁介质是不可避免的。此外 接触发生在文件的开始/停止期间和磁道查找期间。 由于这些接触会导致磁头/磁盘界面的磨损， 需要了解磁头/磁盘摩擦学，并且必须非常小心， 在设计各个组件时， 保证足够的寿命。 本课题主要研究摩擦磨损和边界层的形成机理 氧化物涂层硬磁盘的润滑。摩擦磨损 实验将进行无润滑和润滑的磁 将设计中等和加速磨损试验。解析曲面 将使用仪器来研究润滑剂分布， 磁盘，磁头/磁盘磨损机制的理论模型将 进行。