Wear properties of perpendicular magnetic recording media
Wear properties of sputtered Co-Cr/permalloy double layer on flexible substrate with and without an inorganic protective top layer were studied under simulated tribological conditions. A soft head slider (ex. glass) gave even severer damage to media than the hard one (ex. Al 2 O 3 -TiC), and a 200 Å...
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Published in | IEEE transactions on magnetics Vol. 22; no. 5; pp. 349 - 351 |
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Main Authors | , , , , |
Format | Journal Article Conference Proceeding |
Language | English |
Published |
New York, NY
IEEE
01.09.1986
Institute of Electrical and Electronics Engineers |
Subjects | |
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Abstract | Wear properties of sputtered Co-Cr/permalloy double layer on flexible substrate with and without an inorganic protective top layer were studied under simulated tribological conditions. A soft head slider (ex. glass) gave even severer damage to media than the hard one (ex. Al 2 O 3 -TiC), and a 200 Å thin inorganic protective top layer was effective enough to enhance resistance against wear. Read-write experiments were also done with use of the double layer flexible media with the protective top layer (200 Å in thickness) by running them on a specially designed driver unit with an Al 2 O 3 .TiC spherical SPT head. An out-put signal loss was no more than 3dB even after 10 million times of the head passes. |
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AbstractList | Wear properties of sputtered Co-Cr/permalloy double layer on flexible substrate with and without an inorganic protective top layer were studied under simulated tribological conditions. A soft head slider (ex. glass) gave even severer damage to media than the hard one (ex. Al(2)O(3)-TiC), and a 200 A thin inorganic protective top layer was effective enough to enhance resistance against wear. Read-write experiments were also done with use of the double layer flexible media with the protective top layer (200 A in thickness) by running them on a specially designed driver unit with an Al(2)O(3).TiC spherical SPT head. An out-put signal loss was no more than 3dB even after 10 million times of the head passes. Wear properties of sputtered Co-Cr/permalloy double layer on flexible substrate with and without an inorganic protective top layer were studied under simulated tribological conditions. A soft head slider (ex. glass) gave even severer damage to media than the hard one (ex. Al 2 O 3 -TiC), and a 200 Å thin inorganic protective top layer was effective enough to enhance resistance against wear. Read-write experiments were also done with use of the double layer flexible media with the protective top layer (200 Å in thickness) by running them on a specially designed driver unit with an Al 2 O 3 .TiC spherical SPT head. An out-put signal loss was no more than 3dB even after 10 million times of the head passes. |
Author | Sobajima, S. Kadokura, S. Matsuzawa, H. Yamaura, M. Yatabe, T. |
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Cites_doi | 10.1109/TMAG.1977.1059695 10.1109/TMAG.1985.1063930 10.1109/TMAG.1982.1062159 10.1109/TMAG.1984.1063563 |
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Keywords | Transition metal Alloys Experimental study Bimetallic layer Wear Thin film Magnetic recording |
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SubjectTerms | Analysing. Testing. Standards Applied sciences Cleaning Condensed matter: structure, mechanical and thermal properties Cross-disciplinary physics: materials science; rheology Exact sciences and technology Glass Magnetic heads Magnetic materials Magnetic properties Materials science Measurement of properties and materials state Metals, semimetals and alloys Metals. Metallurgy Nondestructive testing Perpendicular magnetic recording Physical properties of thin films, nonelectronic Physics Protection Rough surfaces Specific materials Surface roughness Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties) Testing |
Title | Wear properties of perpendicular magnetic recording media |
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