公开(公告)号：US06956718B1

公开(公告)日：2005-10-18

申请号：US10223992

申请日：2002-08-19

申请人： Ashok Venkatesh Kulkarni ,  Vijay Prabhakaran ,  Pablo Gabriel Levi ,  Biao Sun ,  Eric Thomas Sladek ,  Michael Thomas Sullivan

发明人： Ashok Venkatesh Kulkarni ,  Vijay Prabhakaran ,  Pablo Gabriel Levi ,  Biao Sun ,  Eric Thomas Sladek ,  Michael Thomas Sullivan

IPC分类号： G11B5/60

CPC分类号： G11B5/6082 ,  G11B5/3106

摘要： A slider is formed of an air bearing surface coated with a wear limiting coating that substantially limits surface wear of the air bearing surface encountered in proximity recording. The wear limiting coating is comprised of a wear inhibiting layer formed on the air bearing surface and a sacrificial layer formed on the wear inhibiting layer. The two coatings of the wear limiting coating have different mechanical properties so that the sacrificial layer is burnished, exposing the wear inhibiting layer. This design substantially limits the surface wear of the air bearing surface typically encountered in proximity recording, resulting in less debris accumulation, which could otherwise adversely affect the performance of the proximity recording head. This self-limiting burnishing action overcomes the flying height variation due to manufacturing tolerances and provides extremely small and uniform magnetic spacing, which greatly enhances the proximity recording. Moreover, the burnishing action also achieves an improved flying stability and a reduction in the altitude sensitivity.

摘要翻译： 滑动件由涂覆有磨损限制涂层的空气轴承表面形成，其基本上限制了在接近记录中遇到的空气轴承表面的表面磨损。 磨损限制涂层由形成在空气轴承表面上的耐磨损层和形成在耐磨损层上的牺牲层组成。 磨损限制涂层的两个涂层具有不同的机械性能，使得牺牲层被抛光，暴露出耐磨损层。 该设计基本上限制了在接近记录中通常遇到的空气轴承表面的表面磨损，导致更少的碎屑积聚，否则这将不利地影响接近记录头的性能。 这种自限制抛光动作克服了由于制造公差引起的飞行高度变化，并且提供极小的和均匀的磁间距，这极大地增强了接近记录。 此外，抛光动作还实现了飞行稳定性的提高和高度敏感性的降低。