| 铁基纳米晶软磁合金起始磁导率的研究 |
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| 引用本文： | 黎阳,严彪,杨磊,陆伟. 铁基纳米晶软磁合金起始磁导率的研究[J]. 材料导报, 2004, 18(3): 81-84 |
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| 作者姓名： | 黎阳 严彪 杨磊 陆伟 |
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| 作者单位： | 同济大学材料学院金属基功能材料研究所,上海市金属功能材料开发应用重点实验室,上海,200092;同济大学材料学院金属基功能材料研究所,上海市金属功能材料开发应用重点实验室,上海,200092;同济大学材料学院金属基功能材料研究所,上海市金属功能材料开发应用重点实验室,上海,200092;同济大学材料学院金属基功能材料研究所,上海市金属功能材料开发应用重点实验室,上海,200092 |
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| 基金项目： | 上海市纳米科技专项基金 |
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| 摘 要： | 论述了细化晶粒,改变合金成分,以及合理控制退火温度、时间和速度对铁基纳米晶软磁合金起始磁导率的影响及其原理.具体分析了Nb、Cu、La等在合金中的作用,确定了Si的含量要保持在14%左右.退火温度对起始磁导率有明显的影响,这种影响反映在纳米晶合金各相体积百分数的相对变化.还分析了退火时间在40min时软磁性能最佳的原因以及加快退火加热速度会显著提高合金起始磁导率的原理.
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| 关 键 词： | 软磁合金 起始磁导率 晶粒 |
Study on Initial Permeability of Fe-Based Nanocrystalline Soft Magnetic Alloy |
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| LI Yang YAN Biao YANG Lei LU Wei. Study on Initial Permeability of Fe-Based Nanocrystalline Soft Magnetic Alloy[J]. Materials Review, 2004, 18(3): 81-84 |
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| Authors: | LI Yang YAN Biao YANG Lei LU Wei |
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| Abstract: | Several main factors, such as grain size,alloy composition,and temperature, time and rate of heat treatment, which affect the initial permeability of Fe-based nanocrystalline soft magnetic alloy, are discussed in this paper. We analyzed the effect of Nb, Cu and La and found that the content of Si should be at 14% or so. The annealing temperature had a marked effect on initial permeability, which was reflected in change in volume fraction of various phases of nanocrystalline alloy. We also tried to explain why the best magnetic property was obtained at an annealing time of 40 min,and investgated how a faster heating rate would lead to an increase in initial permeability. |
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| Keywords: | soft magnetic alloy initial permeability grystal grain |
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