Theoretical Model of Lubricant Pick-Up (Breakage of Liquid Meniscus Bridge Due to Elongation in Bridged Direction)
Theoretical Model of Lubricant Pick-Up (Breakage of Liquid Meniscus Bridge Due to Elongation in Bridged Direction)
复制标题
润滑油拾取的理论模型（由于桥接方向伸长导致液体弯液面桥断裂）
DOI：
10.1109/tmag.2011.2148106
复制
发表时间：
2011
期刊：
影响因子：
--
通讯作者：
S.Fukui
中科院分区：
文献类型：
--
作者：
H.Matsuoka;M.Kan-nen;S.Fukui
In recent magnetic storage systems, the spacing between the flying head and the disk has been drastically decreased to less than 5 nm in order to realize ultra-high density recording. Lubricant on the disk is picked up on the flying head slider as a result of the intermittent contact between the slider and the disk, or due to condensation of the lubricant vapor. In this study, the basic characteristics of lubricant pick-up caused by the breakage of a liquid meniscus bridge are investigated theoretically. A model for the breakage of a liquid meniscus bridge is proposed and the volume fraction of the lubricant pick-up is derived. The effects of the radius of curvature of a sphere surface and the initial volume of a liquid droplet on the volume fraction of the lubricant pick-up are discussed. The theoretical results obtained from a model that the authors proposed showed good agreement with the experimental results. This model is considered to be useful in the prediction of lubricant pick-up characteristics.
