磁気ヘッドの摩耗寿命予測

概要

論文の詳細を見る
Head-disk spacing and head sizes have been reduced to increase the storage capacity of disk storage devices. This has increased the probability of head-disk contact and made the prediction of head wear more important than that of disk wear, especially in proximity recording systems. Head wear has previously been predicted by using Archard's wear equation, which assumes that wear increases linearly with the sliding distance. However, we found that the longer the sliding distance, the less the pin wear rate on thin-film magnetic disks. This running-in effect does not follow Archard's equation. Therefore, we derived a new wear equation, taking account of the running-in effects and head seek operations. This paper reviews past attempts at head wear prediction and explains our new wear equation. Then, head lifetime, which depends on the wear, should be predicted using a wear equation that takes account of the running-in effect.
社団法人日本磁気学会の論文
1997-11-01