Method for manufacturing magnetic recording medium
    4.
    发明专利
    Method for manufacturing magnetic recording medium 有权
    制造磁记录介质的方法

    公开(公告)号:JP2014056633A

    公开(公告)日:2014-03-27

    申请号:JP2012202233

    申请日:2012-09-14

    IPC分类号: G11B5/84

    摘要: PROBLEM TO BE SOLVED: To provide a manufacturing method for obtaining a protection layer having both excellent corrosion resistance and adhesiveness of a lubricant.SOLUTION: A method for manufacturing a magnetic recording medium including a magnetic layer, a protection layer lower layer, a protection layer upper layer and a lubricant layer which are formed on a base plate and configured so that a total film thickness of the protection layer lower layer and the protection layer upper layer is 2.5 nm or less includes a step (1) for forming the protection layer lower layer, a step (2) for applying oxygen plasma treatment to the protection layer lower layer, a step (3) for forming the protection layer upper layer, and a step (4) for applying nitrogen plasma treatment to the protection layer upper layer in the order. It is preferred that the protection layer lower layer and the protection layer upper layer are composed of a carbon-base material and it is further preferred that these layers are composed of diamond-like carbon. It is preferred that a contact angle of the protection layer lower layer with water in atmosphere is 25 degrees or less.

    摘要翻译: 要解决的问题:提供一种获得具有优异的耐腐蚀性和润滑剂的粘合性的保护层的制造方法。解决方案:一种制造包括磁性层,保护层下层,保护层的磁记录介质的方法 上层和润滑剂层,其形成在基板上并且被构造成使得保护层下层和保护层上层的总膜厚度为2.5nm以下包括用于将保护层形成为下层的工序(1) 层,用于对保护层下层施加氧等离子体处理的工序(2),形成保护层上层的工序(3)和将氮等离子体处理施加到保护层上层的工序 命令。 优选的是,保护层下层和保护层上层由碳基材料构成,更优选这些层由类金刚石碳组成。 保护层下层与大气中的水的接触角优选为25度以下。