Recording Characteristics of Anodic Oxide Films on Aluminum Containing Electrodeposited Ferromagnetic Metals and Alloys
- 1 July 1976
- journal article
- Published by The Electrochemical Society in Journal of the Electrochemical Society
- Vol. 123 (7) , 1047-1051
- https://doi.org/10.1149/1.2132989
Abstract
Fe, Co, Ni, Co‐Ni, Fe‐Ni, and Fe‐Co were electrodeposited into the micropores of oxide films on aluminum anodized in a sulfuric acid bath. The coercive force of the Fe deposit reached about 2300 oe and the maximum value of 3200 oe was obtained by the Fe‐Co alloy. Good squareness ratios were observed in the Fe, Ni, and their alloys. The magnetic recording characteristics were studied by measuring the frequency response. It was found that the films having vertical anisotropy showed better results than the films of horizontal ones. The recording density was calculated to be about 14,000 BPI in the Fe‐Ni alloy at about 3 μm in thickness.Keywords
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