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

摘要

An amorphous alloy for a magnetic head has a composition which may be represented as Co100-T-X-Y-ZNiTHfXBYSiZ or Co100-T min -X-Y-ZReT min HfXBYSiZ, where T, T min , X, Y and Z satisfy the conditions of 0.75 /=T/=14, 0.2/=T min /=1.5, 6/=X/=15, 3/=Y/=8 and 0/=Z/=0.01. Such an amorphous alloy has a high crystallization temperature, said temperature being higher than 500 DEG C, and does not lower the effective magnetic permeability, even if gradual cooling is performed 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.