On improved durability characteristics for a Co-Cr flexible disk system

The signal durability of a disk which was formed by sputtering Co-Cr, permalloy, and inorganic protective layers on both surfaces of a flexible substrate was studied by evaluating its tribological characteristics. Out-put signal loss in proportion to head-pass number was found to be due to brittle f...

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Published inIEEE transactions on magnetics Vol. 23; no. 5; pp. 2404 - 2406
Main Authors Kadokura, S., Kamei, K., Teranishi, K., Sobajima, S.
Format Journal Article
LanguageEnglish
Published IEEE 01.09.1987
Subjects
Capacitive sensors
Magnetic heads
Magnetic properties
Mechanical factors
Plastics
Protection
Sputtering
Substrates
Surface morphology
Testing
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Abstract The signal durability of a disk which was formed by sputtering Co-Cr, permalloy, and inorganic protective layers on both surfaces of a flexible substrate was studied by evaluating its tribological characteristics. Out-put signal loss in proportion to head-pass number was found to be due to brittle fracture and/or plastic deformation of the disk. A disk with plastic deformation showed better signal durability than that with brittle fracture. High toughness and homogeneous structure of metal layers presumably improve durability for the practical use of a Co=Cr layered flexible disk system.
AbstractList The signal durability of a disk which was formed by sputtering Co-Cr, permalloy, and inorganic protective layers on both surfaces of a flexible substrate was studied by evaluating its tribological characteristics. Out-put signal loss in proportion to head-pass number was found to be due to brittle fracture and/or plastic deformation of the disk. A disk with plastic deformation showed better signal durability than that with brittle fracture. High toughness and homogeneous structure of metal layers presumably improve durability for the practical use of a Co=Cr layered flexible disk system.
Author Kamei, K.
Sobajima, S.
Kadokura, S.
Teranishi, K.
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Cites_doi 10.1109/TMAG.1986.1064415
10.1063/1.334655
10.1109/TMAG.1984.1063563
10.1109/TMAG.1982.1062159
10.1109/TMAG.1986.1064578
10.1109/TMAG.1984.1063468
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SubjectTerms Capacitive sensors
Magnetic heads
Magnetic properties
Mechanical factors
Plastics
Protection
Sputtering
Substrates
Surface morphology
Testing
Title On improved durability characteristics for a Co-Cr flexible disk system
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