Magnetic head core comprising a monocrystaline ferrite

Details Magnetic head core comprising a monocrystaline ferrite Magnetic head core comprising a monocrystaline ferrite

1987-02-26

1989-06-20

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Head

Core

29603, 360127, G11B 5133, G11B 5127

Patent

active

048414000

ABSTRACT:
A magnetic head core consisting of plural core elements of ferrite butted and bonded together through solid-solid reaction so as to form a generally annular magnetic circuit having a magnetic gap. At least opposed portions of the magnetic circuit which define the magnetic gap and provide magnetic-medium contacting contacting surface are formed of a single crystal of ferrite. At least one of the plural core elements is originally an at least partially monocrystalline block of ferrite including a monocrystalline portion consisting of a ferrite single crystal, and at least one of the opposed portions defining the magnetic gap is monocrystallized as a result of growth of the ferrite single crystal of the monocrystalline portion toward the original ferrite polycrystal of the core elements.

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