| 高Br纳米晶Fe73.5Cu1Nb3Si13.5B9合金的损耗行为 |
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| 引用本文： | 张延忠,金慧娟,施 英.高Br纳米晶Fe73.5Cu1Nb3Si13.5B9合金的损耗行为[J].物理学报,1999,48(13):132-137. |
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| 作者姓名： | 张延忠 金慧娟 施 英 |
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| 作者单位： | 上海钢铁研究所，上海金属功能材料研究所和开发重点实验室，上海 200940 |
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| 基金项目： | 国家非晶微晶合金工程技术研究中心资助的课题. |
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| 摘 要： | 在f=10—20000Hz和Bm=0.1—1.0T范围内，测量了高Br纳米晶Fe73.5Cu1Nb3Si13.5B9合金的损耗.把总损耗分离为磁滞损耗、经典涡流损耗和过剩损耗.测量结果表明，每周损耗随频率的变化表现出明显的非线性行为.用Bertotti的损耗统计理论描述了这种非线性行为.大致在两个频率范围内，有两种不同的描述方式.
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| 收稿时间： | 1999-06-10 |
Behavior of Core Loss in Nanocrystalline Fe73.5Cu1Nb3Si13.5B9 Alloy with High Br |
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| Zhang Yan-Zhong,Jin Hui-Juan and Shi Ying.Behavior of Core Loss in Nanocrystalline Fe73.5Cu1Nb3Si13.5B9 Alloy with High Br[J].Acta Physica Sinica,1999,48(13):132-137. |
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| Authors: | Zhang Yan-Zhong Jin Hui-Juan and Shi Ying |
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| Abstract: | In the ranges of f=10—20000Hz and Bm=0.1—1.0T, the core loss has been measured for nanocrystalline Fe73.5Cu1Nb3Si13.5B9 alloy with high Br. The total power loss was decomposed into the sum of the classical eddy current loss, the hysteresis loss and the excess loss. The results show that the change of the total loss per cycle with frequency clearly shows a nonlinear behavior, which has been described in terms of Bertotti's statistical theory of loss. The frequency range examined can nearly be divided into two intervals, in which there exist two different describing ways. |
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