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1995•Journal of the Korean Magnetics SocietyRequires access

MAGNETIC PROPERTIES OF Fe - Al - B - Zr - Cu ALLOYS WITH FINE NANOCRYSTALLINE STRUCTURE

K.J. Kim, J.Y. Park, K.J. Kim, Tae Hwan Noh, I. K. Kang

Open publisher page 7 citations

Abstract

The crystallization behaviors and magnetic properties for Fe_(81-x)Al₄B_(10)Zr_5Cu_x (x=0, 1, 2 at%) alloys is investigated. By the addition of 1~2 Cu, the temperature range, where a single bcc phase exists, expands largely over 200 K and the grain size of bcc phase represents to less than 10 ㎚. For the optimally annealed Cu-added alloys, the high μe (1 ㎑) above 20000 combined with the high B_(10) of about 1.4 T is obtained in nanocrystalline state. The low core loss of 95.8 W/㎏ at 0.1 T and 100 ㎑ is confirmed for the nanocrystalline Fe_(80)Al₄B_(10)Zr_5Cu₁ alloy.

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What this paper is about

The crystallization behaviors and magnetic properties for Fe_(81-x)Al₄B_(10)Zr_5Cu_x (x=0, 1, 2 at%) alloys is investigated. By the addition of 1~2 Cu, the temperature range, where a single bcc phase exists, expands largely over 200 K and the grain size of bcc phase represents to less than 10 ㎚. For the optimally annealed Cu-added alloys, the high μe (1 ㎑) above 20000 combined with the high B_(10) of about 1.4 T is obtained in nanocrystalline state. The low core loss of 95.8 W/㎏ at 0.1 T and 100 ㎑ is confirmed for the nanocrystalline Fe_(80)Al₄B_(10)Zr_5Cu₁ alloy.

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Available abstract

The crystallization behaviors and magnetic properties for Fe_(81-x)Al₄B_(10)Zr_5Cu_x (x=0, 1, 2 at%) alloys is investigated. By the addition of 1~2 Cu, the temperature range, where a single bcc phase exists, expands largely over 200 K and the grain size of bcc phase represents to less than 10 ㎚. For the optimally annealed Cu-added alloys, the high μe (1 ㎑) above 20000 combined with the high B_(10) of about 1.4 T is obtained in nanocrystalline state. The low core loss of 95.8 W/㎏ at 0.1 T and 100 ㎑ is confirmed for the nanocrystalline Fe_(80)Al₄B_(10)Zr_5Cu₁ alloy.

Key concepts: Nanocrystalline material, Materials science, Alloy, Phase (matter), Grain size, Crystallization, Metallurgy, Annealing (glass)

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