公开(公告)号：US5331487A

公开(公告)日：1994-07-19

申请号：US822005

申请日：1992-01-16

申请人： Thomas A. Gregory ,  Ajay Johary ,  Christopher G. Keller ,  Ronald G. Lecander ,  James J. Mayerle

发明人： Thomas A. Gregory ,  Ajay Johary ,  Christopher G. Keller ,  Ronald G. Lecander ,  James J. Mayerle

IPC分类号： G11B5/66 ,  C09D171/02 ,  C10M105/54 ,  C10N40/18 ,  G11B5/64 ,  G11B5/73 ,  G11B23/50 ,  G11B33/14 ,  G11B5/00

CPC分类号： G11B23/507 ,  G11B33/148 ,  Y10S428/90

摘要： A thin film magnetic recording disk that has a layer of lubricant bonded thereto is enclosed within a vapor phase lubricant system that operates to continuously apply lubricant vapors to the disk's bonded lubricant layer by operation of Langmuir kinetics. Lubricant vapors are selectively adsorbed on the disk, including regions of the disk where the bonded lubricant is either too thin or is entirely absent, thus minimizing failures that might be caused by such imperfections in the bonded lubricant layer. A reactive perfluoropolyether (PFPE) lubricant containing chemically active functional groups is substantially bonded onto the recording surface of the disk, for example by the application of heat. The mobile residue of this bonded lubricant layer may be left on the disk, to thereafter function as a non-bonded, mobile, lubricant layer covering the surface of the bonded lubricant layer. Alternately, the lubricant residue may be substantially removed by use of a solvent or other means, and a nonreactive lubricant, such as a nonreactive PFPE, may thereafter be topically applied onto the surface of the bonded lubricant layer, to function as a non-bonded, mobile, lubricant layer. A lubricant reservoir within the vapor phase lubricant system provides a supply of a volatile organic lubricant, such as stearic acid or reactive or a nonreactive PFPE. Lubricant vapors from this reservoir operate so as to continuously repair voids or thin areas in the disk's simplex layer of substantially bonded lubricant, or in the disk's duplex layer of bonded and mobile lubricant. Either one, two or three lubricants could be used in this tribological system.

摘要翻译： 具有粘结了润滑剂层的薄膜磁记录盘被封闭在气相润滑系统中，该气相润滑系统通过Langmuir动力学的操作连续地将润滑剂蒸汽施加到盘的粘结润滑剂层上。 润滑剂蒸气被选择性地吸附在盘上，包括盘的区域，其中粘结的润滑剂太薄或完全不存在，从而最小化由粘合润滑剂层中的这种缺陷引起的故障。 含有化学活性官能团的反应性全氟聚醚（PFPE）润滑剂基本上例如通过加热而结合到盘的记录表面上。 该粘合润滑剂层的移动残留物可以留在盘上，此后作为覆盖粘合润滑剂层的表面的非结合的可移动的润滑剂层起作用。 或者，可以通过使用溶剂或其它方法基本上除去润滑剂残留物，然后将非反应性润滑剂（例如非反应性PFPE）局部施加到粘合的润滑剂层的表面上，起到非键合的作用 ，移动，润滑层。 气相润滑剂系统内的润滑剂储存器提供挥发性有机润滑剂，例如硬脂酸或反应性或非反应性PFPE。 来自该容器的润滑剂蒸汽操作，以便连续地修复盘的基本粘合的润滑剂的单层中的空隙或薄区域，或者在盘的粘合和移动润滑剂的双层中。 在这种摩擦学系统中可以使用一种，两种或三种润滑剂。