Magnetic properties of high silicon iron sheet fabricated by direct powder rolling

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• 作者：Li ; Ran ; Shen ; Qiang ; Zhang ; Lianmeng ; Zhang ; Tao
• 关键词：75.50.Bb ; 81.20.Ev ; 81.30.Hd ; 81.40.Rs ; High silicon&ndash ; iron strip ; Direct powder rolling ; Powder reaction ; Heat treatment
• 刊名：Journal of Magnetism and Magnetic Materials
• 出版年：2004
• 期刊代码：31_03048853
• 类别：ph
• 出版时间：October, 2004
• 卷：281
• 期：2-3
• 页码：135-139
• 文件大小：224 K

摘要

In this research, the high silicon–iron strips (near to 6.5%Si) were produced by the direct powder rolling (DPR) technique. The continuous strips could be compacted by rolling from silicon and iron powders and sintered by the following heat treatments. The chemical formula, Fe+Si→Fe (Si)+Fe₃Si (Si), controls the reaction of silicon and iron powders. Optimized mechanical properties of the strip due to the composite phase between Fe₃Si (Si) and Fe (Si) make the further rolling possible. The soft magnetic properties of final samples were measured in the frequency from 50Hz to 20kHz and the results show that the core loss is relatively lower above 1kHz.