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      극박형 Fe - Al - Nd - B - Cu계 초미세결정합금의 자기적 특성

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      https://www.riss.kr/link?id=A76075555

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      The effects of Al addition to Fe-B-Nb-Cu alloy for improving the high-frequency magnetic properties and the magnetic properties of ultrathin Fe_(78)Al₄Nb_5B₁₂Cu₁ nanocrystalline alloy ribbons with the thickness less than 10 ㎛ were investigated. It was found that the effective permeability at frequencies over 100 ㎑ was very high and the core loss was very low for the composition Fe_(78)Al₄Nb_5B₁₂Cu₁ alloy. Moreover, the reduction of the ribbon thickness below 10 ㎛ was very effective in improving their permeability and the core loss characteristics up to the ㎒ frequency range. The values of effective permeability at 1 ㎒ and core loss at 0.2 T, 1 ㎒ were 5,000 and 1.4 ㎾/㎏, respectively. It was considered that these results were due to far refined α-Fe phase structure with grain size less than 10 ㎚ and domain structure modification.
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      The effects of Al addition to Fe-B-Nb-Cu alloy for improving the high-frequency magnetic properties and the magnetic properties of ultrathin Fe_(78)Al₄Nb_5B₁₂Cu₁ nanocrystalline alloy ribbons with the thickness less than 10 ㎛ were investigat...

      The effects of Al addition to Fe-B-Nb-Cu alloy for improving the high-frequency magnetic properties and the magnetic properties of ultrathin Fe_(78)Al₄Nb_5B₁₂Cu₁ nanocrystalline alloy ribbons with the thickness less than 10 ㎛ were investigated. It was found that the effective permeability at frequencies over 100 ㎑ was very high and the core loss was very low for the composition Fe_(78)Al₄Nb_5B₁₂Cu₁ alloy. Moreover, the reduction of the ribbon thickness below 10 ㎛ was very effective in improving their permeability and the core loss characteristics up to the ㎒ frequency range. The values of effective permeability at 1 ㎒ and core loss at 0.2 T, 1 ㎒ were 5,000 and 1.4 ㎾/㎏, respectively. It was considered that these results were due to far refined α-Fe phase structure with grain size less than 10 ㎚ and domain structure modification.

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