AMORPHOUS ALLOY FOR MAGNETIC HEAD

摘要

PURPOSE:To provide an amorphous alloy for a magnetic head having a high crystallization temp. and an excellent magnetic characteristic and wear resistance by incorporating a specific amt. of Y and B in a Co-Fe-Ni alloy consisting essentially of Co and making the alloy amorphous. CONSTITUTION:The melt of a Co-Fe-Ni alloy consisting essentially of Co expressed by the formula (1) is quickly cooled at an extremely high cooling rate and is made amorphous. The amt. (m) of the Y to be added in the formula (1) is set within a range of 2<=m<=10 in atom concn. The amorphous alloy for a magnetic head which does not crystallize at the melting temp. of glass in the stage of adhering securely the amorphous alloy as a magnetic head material to the glass and has excellent wear resistance against friction with a magnetic medium and an excellent magnetic characteristic is obtd.