Abstract
The magnetic properties and corrosion resistance of a magnetic alumite film, in which micropores are filled with Co, are investigated. It is found that in-plane magnetizatlon film is obtained by adding a small amount of P to the Co. For example, the effective anisotropy energy of the film changes from +0.44×105 erg/cm3 to -1.32×105 erg/cm3 by the addition of 8 at.% P. The in-plane coercivity of the film can be controlled between 340 Oe and 1350 Oe by the P content. The corrosion resistance of the film filled with Co94P6 under the atmosphere of 40°C, 90% R. H. with 10 ppm SO2 gas is tested. The corrosion resistance of the film under this condition is superior to that of sputtered Co-Ni thin film media with a carbon protective layer. Magnetic alumite film filled with Co-P alloy is considered to be a candidate for longitudinal magnetic recording media.
Original language | English |
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Pages (from-to) | 1675-1679 |
Number of pages | 5 |
Journal | Japanese journal of applied physics |
Volume | 29 |
Issue number | 9R |
DOIs | |
Publication status | Published - 1990 Sep |
Externally published | Yes |
Keywords
- Co-electrodeposited alumite films
- Corrosion resistance
- In-plane magnetization film
- Magnetic properties
ASJC Scopus subject areas
- Engineering(all)
- Physics and Astronomy(all)