Mn-Zn-based single crystal ferrite composition

Details Mn-Zn-based single crystal ferrite composition Mn-Zn-based single crystal ferrite composition

1994-03-31

1994-11-29

Cooper, Jack

Compositions

Magnetic

Iron-oxygen compound containing

252 6262, 252 6263, C04B 3538

Patent

active

053687647

ABSTRACT:
An Mn-Zn-based single crystal ferrite composition containing an additive material essentially consisting of 0.2 to 2 mole % SnO.sub.2, 0.1 to 1 mole % CoO, 0.2 to 1 mole % CaCO.sub.3 and 0.02 to 1 weight % V.sub.2 O.sub.5 added to a host material essentially consisting of 51 to 54 mole % Fe.sub.2 O.sub.3, 27 to 33 mole % MnO and 16 to 20 mole % ZnO. A magnetic head manufactured from the single crystal ferrite generates an enhanced reproduction output and a reduced rubbing noise, thereby achieving a high picture quality and a high resolution of images.

REFERENCES:
patent: 3574116 (1971-04-01), Sugano et al.
patent: 3769219 (1973-10-01), Sugano et al.
patent: 4285894 (1981-08-01), Watanabe et al.
patent: 4439794 (1984-03-01), Shiroishi et al.

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