Glass bonding of manganese-zinc ferrite

Details Glass bonding of manganese-zinc ferrite Glass bonding of manganese-zinc ferrite

1976-06-21

1977-09-20

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

360120, G11B 542

Patent

active

040487148

ABSTRACT:
A method of minimizing or eliminating reactions between a surface of manganese zinc ferrite and a glass bonding composition applied thereto is disclosed, wherein a barrier layer is formed upon the manganese zinc ferrite surface prior to the application of the glass bonding composition. The barrier layer is a chromium layer about 3 - 170 microinches thick. The resulting product is suitable for use in radio frequency recording apparatus, and especially for multi-core magnetic heads.

REFERENCES:
patent: 2711945 (1955-06-01), Korhei
patent: 3458926 (1969-08-01), Maissel et al.
patent: 3629519 (1971-12-01), Hanak
patent: 3795954 (1974-03-01), Alex et al.

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