Substrate material for a magnetic head

Details Substrate material for a magnetic head Substrate material for a magnetic head

1997-08-25

1999-06-22

Marcantoni, Paul

Compositions: ceramic

Ceramic compositions

Carbide or oxycarbide containing

501 93, C04B 3556

Patent

active

059142855

ABSTRACT:
To provide a substrate material having characteristics suitable to a magnetic head for attaining high recording density. A substrate material for a magnetic head comprising a matrix phase of a carbide of one or more of Ti, W and Ta and a dispersion phase of an oxide of one or more of Al.sub.2 O.sub.3, CrO.sub.3, and ZrO.sub.2, in which the material comprises 60 to 95 vol % of the matrix phase of the carbide. Further, a single phase in which the ingredients of carbides as the matrix phase comprise (Ti.sub.j W.sub.m Ta.sub.n)C.sub.x is preferred. Further, oxygen and/or nitrogen may be solid-solubilized in the carbide MeC of the matrix phase wherein Me is one or more of Ti, W, and Ta.

REFERENCES:
patent: 4063908 (1977-12-01), Ogawa et al.
patent: 4650774 (1987-03-01), Kawaguchi et al.
patent: 4839315 (1989-06-01), Suzuki et al.
patent: 5595947 (1997-01-01), Tsujimoto et al.

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