MAGNETIC PROPERTIES OF MELT-SPUN $F_{86-x}Al_{4}B_{10}Zr_{x}$ AMORPHOUS ALLOYS

  • Kim, K.J. (Division of Metals, Korea Institute of Science and Technology) ;
  • Park, J.Y. (Department of Metall. Eng., Sung-Kyun-Kwan Univ.) ;
  • Kim, K.Y. (Division of Metals, Korea Institute of Science and Technology) ;
  • Lee, J.S. (Division of Metals, Korea Institute of Science and Technology) ;
  • Noh, T.H. (Division of Metals, Korea Institute of Science and Technology)
  • Published : 1995.10.01

Abstract

With the object of developing a new magnetic core materials for high frequency use, the crystallization behaviors and the soft magnetic properties of amorphous $F_{86-x}Al_{4}B_{10}Zr_{x}\;(5{\leq}x{\leq}10\;at%)$ alloys subjected to annealing treatment at wide temperature range were investigated. For optimally annealed $Fe_{86-x}Al_{4}B_{10}Zr_{x}$ alloys in amorphous state, rather good soft magnetic properties of ${\mu}_{e}=17000~25000,\;H_{c}=20~30$ mOe and $B_{10}{\geq}0.6$ T are obtained. However, as the alloys crystallize, the soft magnetic properties are largely dergely deteriorated, which is attributed principally to the narrow temperature gap between $T_{x1}$ and $T_{x2}$, which allows the nearly co-precipitation of bcc phase and Fe-B compounds in incipient crystallization stage.

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References

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