Abstract
It is well known that decreasing the thickness of the magnetic layer is favorable for high density recording. In the case of magnetic particulate media, as the magnetic layer becomes simply thinner, the benefits of its electromagnetic properties cannot be obtained due to the rougher surface. However, a special type of thin-layer metal iron particulate media (MP), consisting of two layers, can achieve a magnetic layer of submicron thickness with a smooth surface. As the result of tribological analysis of the thin-layer MP, the features were a smooth and surface, relatively hard surface, and a low friction coefficient. In this study, the friction coefficient depended on the amount of free lubricant. A thin-layer MP runs stably because its surface is relatively hard. It is obvious that a thin-layer MP allows for stable run capability as well as superior electromagnetic properties.
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