| 摘要 |
PURPOSE:To obtain a specially suitable amorphous magnetic alloy as a core material of a magnetic head used as a magnetic recording and reproducing for a magnetic recording medium having high coercive force such as a metallic tape, by dispersing and mixing a fine granule of metal carbide selected among TaC, WC, NbC, MoC, VC and Cr3C2. CONSTITUTION:An amorphous magnetic alloy is composed by dispersing and mixing fine granules of a metal carbide selected among TaC, WC, NbC, MoC, VC and Cr3C2 into a base alloy in the ratio of 0.1-10vol%. An average grain size of the fine granule of said metal carbide is in a range of, for example, 0.1- 10.0mu preferably 0.5-1.0mu. In order to prevent the metal carbide from dissolving in the base alloy, the metal element of fine granules of said carbides is desirably dissolved as a component of the base alloy into said base alloy. Namely, when a composition of the base alloy for dispersing, for example, the fine TaC granule is supposed to be an Fe-Co-Ta-B series and said TaC granule is mixed into the base alloy, the TaC granule is hardly dissolved in the base alloy and its magnetic characteristic is deviated not so much from an expected value.
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