Pass wear resistance for perpendicular recording media
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概要
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Pass wear resistance of sputtered CoCr perpendicular flexible disks has been investigated. The disk was composed of CoCr film on a heat-resistant base film, a protection layer, and lubricant. The pass wear durabilities were evaluated for a conventional double-sided 3.5-in drive. It was found that the scratch depth (SD) per load force (LF) depends on preparation conditions, and that the CoCr film hardness is related to pass wear durability. SD/LF values range from 0.2 to 0.3 for CoCr films without a protective layer. With a protective layer and lubricant, the range of SD/LF values varies from 0.2-0.3 to 0.1-0.3. The disk hardness, especially for small SD/LF media, has been improved. A pass wear durability of 30 million passes was attained for a disk having SD/LF = 0.1.
- IEEE = Institute of Electrical and Electronics Engineersの論文
- 1988-11-00
IEEE = Institute of Electrical and Electronics Engineers | 論文
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