Title :
Wear-resistant magnetic head using amorphous alloy material
Author :
Kohmoto, O. ; Ohya, K. ; Ojima, T.
Author_Institution :
TDK Corp., Ichikawa
fDate :
11/1/1989 12:00:00 AM
Abstract :
An audio recording/playback head using an amorphous (Fe-Co-Ru-Cr) 75(Si-B)25 alloy was developed. Compared with a commercial Sendust head, three excellent features were observed. The wear of the amorphous alloy head when used with γ-Fe2O 3 is two-thirds that of the Sendust head. The output level at high-frequency (14 kHz) is 5 dB higher than that of the Sendust head. The bias current for the amorphous alloy head is half that of the Sendust head
Keywords :
audio recording; boron alloys; chromium alloys; cobalt alloys; iron alloys; magnetic heads; magnetic properties of amorphous substances; magnetic recording; metallic glasses; ruthenium alloys; silicon alloys; (FeCoRuCr)75(SiB)25 alloy; 14 kHz; amorphous alloy head; audio recording/playback head; bias current; commercial Sendust head; wear resistant magnetic head; Amorphous magnetic materials; Amorphous materials; Audio recording; Frequency; Magnetic heads; Magnetic materials; Magnetic properties; Magnetostriction; Soft magnetic materials; Temperature;
Journal_Title :
Magnetics, IEEE Transactions on
