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Stress‐induced anisotropy and permeability of magnetostrictive Co‐based amorphous alloys

机译:磁致伸缩钴基非晶合金的应力诱导各向异性和磁导率

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Effects of stress‐induced uniaxial anisotropy Ku on initial permeability μ of magnetostrictive Co‐based amorphous alloys were investigated over a wide frequency region by potting ribbons of the material in epoxy resin. Anisotropy in plane caused the low frequency (kHz) permeability to change as μ∝K-l/2u due to domain wall displacements and, therefore, resulted in large eddy current losses due to wall movements which decreased the permeability in the high frequency (MHz) region. Anisotropy normal to the plane caused the low frequency permeability to change as μ∝K-1u due to magnetization rotation and the permeability in the high frequency region took higher values than for the case of in‐planed anisotropy because the eddy current losses were smaller.
机译:应力诱导的单轴各向异性Ku对磁致伸缩Co基非晶合金的初始磁导率μ的影响是通过在环氧树脂中浇铸材料的宽频带来研究的。平面内的各向异性导致低频(kHz)磁导率由于畴壁位移而变化为μ∝Kl / 2u,因此,由于壁运动而导致大的涡流损耗,这降低了高频(MHz)区域的磁导率。垂直于平面的各向异性导致低频磁导率由于磁化旋转而改变为μ∝K-1u,并且高频区域的磁导率比计划内各向异性的情况下的值更高,因为涡流损耗较小。

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    《Journal of Applied Physics》 |1984年第8期|P.3028-3032|共5页
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  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 入库时间 2022-08-17 13:16:35

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