Amorphous alloy for magnetic head and magnetic head with an...

Details Amorphous alloy for magnetic head and magnetic head with an... Amorphous alloy for magnetic head and magnetic head with an...

C - Chemistry, Metallurgy

22

C

148/5, 75/1.1

C22C 38/10 (2006.01) C22C 45/04 (2006.01) H01F 1/153 (2006.01)

Patent

CA 1219472

- 18 - Abstract of the Disclosure An amorphous alloy for a magnetic head has a composition which may be represented as Co100-T-X-Y-ZNiTHfXBySiZ, where T, X, Y and Z satisfy the conditions of 0.75?T?14, 6?X?15, 3?Y?8, 0?Z?0.01, 3?Y+Z?13, and 11?X+Y+Z?25. Such an amorphous alloy has a high crystallization temperature, said temperature being higher than 500°C, and does not lower the effective magnetic permeability, even if gradual cooling is per- formed after heat treatment. A magnetic head having a core consisting of such an amorphous alloy is not deteriorated in its magnetic properties, even if the head is made by glass bonding.

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