| Fe-Cr-Si-B非晶磁粉芯的制备与磁性能研究 |
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| 引用本文： | 刘昌坻,王鲜,冯则坤,龚荣洲.Fe-Cr-Si-B非晶磁粉芯的制备与磁性能研究[J].电子元件与材料,2010,29(11). |
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| 作者姓名： | 刘昌坻 王鲜 冯则坤 龚荣洲 |
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| 作者单位： | 华中科技大学电子科学与技术系; |
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| 基金项目： | 高等学校博士学科点专项科研基金资助项目 |
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| 摘 要： | 以水雾法制备的Fe-Cr-Si-B非晶合金粉末为原料制备了非晶磁粉芯,研究了退火温度和成型压力对磁粉芯性能的影响。结果表明:Fe-Cr-Si-B合金粉末具有较高的非晶化程度和良好的热稳定性;当退火温度低于非晶合金的起始晶化温度时,非晶磁粉芯的起始磁导率μi在440℃附近达到峰值44.7,对应的损耗则相对最低(260×10–3W/cm3,50 kHz);当成型压力由30 MPa增大到50 MPa时,磁粉芯的μi由38.6增大到46.4,其损耗则逐渐降低。
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| 关 键 词： | 非晶磁粉芯 退火 成型压力 磁导率 磁损耗 |
Studies on the fabrication and magnetic properties of Fe-Cr-Si-B amorphous magnetic powder core |
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| LIU Changchi,WANG Xian,FENG Zekun,GONG Rongzhou.Studies on the fabrication and magnetic properties of Fe-Cr-Si-B amorphous magnetic powder core[J].Electronic Components & Materials,2010,29(11). |
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| Authors: | LIU Changchi WANG Xian FENG Zekun GONG Rongzhou |
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| Affiliation: | LIU Changchi,WANG Xian,GONG Rongzhou,FENG Zekun (Department of Electronic Science and Technology,Huazhong University of Science and Technology,Wuhan 430074,China) |
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| Abstract: | Amorphous magnetic powder cores were fabricated from the amorphous Fe-Cr-Si-B alloy powder prepared by water atomization. The effects of annealing temperature and forming pressure on the performance of the core were investigated. The results show that the prepared Fe-Cr-Si-B alloy powder is highly amorphous and shows good thermal stability. When the annealing temperature is below the initial crystallization temperature of the alloy powder, the initial permeability of the Fe-Cr-Si-B core reaches its peak val... |
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| Keywords: | amorphous magnetic powder core annealing forming pressure magnetic permeability magnetic loss |
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