It was found that the as-cast Fe68Nd5Zr2Y4B21 alloy exhibited the soft magnetic behavior, while hard magnetic behavior after crystallization.
合金晶化退火后,磁性能转变为硬磁性,得到了块状的纳米晶复合永磁材料。
This paper presents theoretical computations of magnetic force bearings made of new type hard magnetic materials neodymium iron boron.
论述了用新型硬磁材料设计的磁力轴承的吸力理论计算方法，并介绍了所设计的测量磁偏心、横向刚度和磁拉力的装
For production of computer hard disk, in order to aggrandize the production of hard disk to a maximum and cut down the cost, it requires to realize the maximum of material removal (MR) and material removal rate (MRR) under condition to keep excellent surface finish quality in chemical mechanical polishing (CMP) of hard disk.
对于计算机硬磁盘的生产,为了最大限度地提高盘片生产量,降低生产成本,要求化学机械抛光(chemieal mechanical polishing,简称CMP)中在保证优质表面质量情况下,实现最大去除量(Material Removal,简称MR)和去除率(Material Removal Rate,简称MRR)。
This paper analyses the relationship between the recording areal density and the floatingspace for hard disk and near-field recording disk respectively.
本文分析了硬磁盘以及近场记录光盘记录密度与浮动间距之间的关系 ,在分析对比的基础上 ,得出了在同等浮动间距的情况下 ,近场记录光盘面记录密度比硬磁盘高大约 2 8倍 ;在同等面记录密度的情况下 ,对硬磁盘浮动性能的要求比近场记录光盘高近 10倍的结论 。