Characteristics of dual lubricant layers

被引：11

作者：

Katano, T ^{[1
]}

Oka, M

Nakazawa, S

Aramaki, T

Kusakawa, K

机构：

[1] Fuji Elect Corp Res & Dev Ltd, Device Technol Lab, Nagano 3900821, Japan

[2] Fuji Elect Storage Device Co Ltd, Nagano 3900821, Japan

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2003年 / 39卷 / 05期

关键词：

diffusion coefficient; hard-disk drive (HDD); lubricant layer; mobility; optical surface analyzer (OSA); spin migration; wear durability;

D O I：

10.1109/TMAG.2003.816449

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Lubricant characteristics of dual lubricant layers, which consist of a first-lubricant bonded layer and second-lubricant mobile layer, were studied. The interface durability is evaluated by a pin-on-disk test. The spin-migration characteristic is evaluated based on the change in thickness of layers after disk spinning. The mobility is estimated from spreading profiles from the lubricant step. Dual lubricant layers, which consists of Z-dol as a mobile layer and Z-tetraol or AM as a bonded layer, shows high mobility, high interface durability, and low spin-migration performance. It is considered that these characteristics can be attributed to higher interaction between the bonded lubricant and the mobile lubricant due to strong polar end groups of the bonded lubricant.

引用

页码：2489 / 2491

页数：3

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