Pseudo-impact contact at the interface between proximity sliders and magnetic rigid disks were investigated by acoustic emission (AE) technique. Under a hot/wet condition of 60/spl deg/C/80%RH and an operation speed of 19.15 m/s., AE responses were collected in real-time to monitor interaction events at the head/disk interface (HDI). The profile of AE responses shows various events at the HDI which can be correlated to the micro-wear of the carbon overcoat and lubricant degradation. These events were also detected by optical surface analysis (OSA). These wear and degradation events indicate the need for choosing the proper lubricant and demonstrate that AE is a suitable tool to detect these events at the head/disk interface.
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机译：通过声发射（AE）技术研究了接近滑块和磁性刚性磁盘之间的界面处的伪碰撞接触。在60 / spl deg / C / 80％RH的热/湿条件下以及19.15 m / s的运行速度下，实时收集AE响应以监视磁头/磁盘接口（HDI）上的交互事件。 AE响应曲线显示了HDI处的各种事件，这些事件可能与碳外涂层的微磨损和润滑剂降解相关。这些事件也通过光学表面分析（OSA）进行了检测。这些磨损和降解事件表明需要选择合适的润滑剂，并证明AE是检测磁头/磁盘界面上这些事件的合适工具。
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