Solid-phase welded magnetic head

Details Solid-phase welded magnetic head Solid-phase welded magnetic head

1988-08-05

1989-10-31

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Head

Core

29603, G11B 5235

Patent

active

048781410

ABSTRACT:
Disclosed is a magnetic head comprising first and second magnetic core halves held in abutment against each other and a gap-defining spacer interposed therebetween, and having an elongated tape-contact surface extending across said gap-defining spacer. The gap-defining spacer has the same crystal structure as that of said first and second core halves and is made of a non-magnetic material including the same principal component as those of said first and second cores halves. The gap-defining spacer is welded to said first and second core halves in accordance with a solid-phase welding method based on a solid-phase reaction.

REFERENCES:
patent: 3188400 (1965-06-01), Vilensky
patent: 3479738 (1969-11-01), Hanak
patent: 3639701 (1972-02-01), Secrist et al.
patent: 4017966 (1977-04-01), Morell et al.
patent: 4361860 (1982-11-01), Nozawa
patent: 4670807 (1987-06-01), Gorter
patent: 4675988 (1987-06-01), Matsuzawa
"Cation Diffusion coefficients and Vacancy Densities in Mn-Zn Ferrites", by Seiya Ogawa and Yasuaki Nakagawa, Journal of the Physical Society of Japan, vol. 23, No. 2, Aug., 1967, pp. 179-184.

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