| 掺杂Dy_2O_3Nd－Fe－B磁体的氧含量对磁性能的影响 |
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| 引用本文： | 周怀营,庄应烘,顾正飞,张伟华. 掺杂Dy_2O_3Nd－Fe－B磁体的氧含量对磁性能的影响[J]. 材料科学与工艺, 1994, 0(3) |
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| 作者姓名： | 周怀营 庄应烘 顾正飞 张伟华 |
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| 作者单位： | 广西大学工业测试实验中心，桂林电器科学研究所 |
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| 摘 要： | 用穆斯堡尔效应和磁性测量等方法，研究了掺杂Ｄｙ_２Ｏ_３Ｎｄ－Ｆｅ－Ｂ磁体的氧含量对磁性能的影响以及氧含量与掺杂浓度和制粉球磨时间的关系，结果表明，掺杂Ｄｙ_２Ｏ_３可以有效地提高磁体的矫顽力，但其剩磁和最大磁能积会不同程度地降低，磁体中的氧含量由掺杂浓度和制备工艺所决定，并满足一定关系式。当掺杂浓度为１．０ｗｔ％时，磁性能在氧含量为１１０００ＰＰｍ附近发生突变。
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| 关 键 词： | Nd－Fe－B磁体；掺杂浓度；氧含量；磁性能 |
Effect of Oxygen Content of Nd-Fe-B Permanent Magnets Doping Dy_2O_3 on Magnetic Properties |
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| Zhou Huaiying,Zhuang Yinghong. Effect of Oxygen Content of Nd-Fe-B Permanent Magnets Doping Dy_2O_3 on Magnetic Properties[J]. Materials Science and Technology, 1994, 0(3) |
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| Authors: | Zhou Huaiying Zhuang Yinghong |
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| Abstract: | The effect of oxygen content of the Nd-Fe-B permanent magnets doping Dy2O3 on the magnetic properties,the relation between the oxygen content of the magnets and the dopant concentration and ball abradant time have been studied by Mossbauer effect and magnetic measurement.The results indicate that do pant Dy2O3 raises the coercivity but leads to decrease in remanence and maximum magnetic energy product.The oxygen content of Nd-Fe-B premanent magnets is dependent on the dopant concentration and technology. For Nd(Fe0. 91Al0.01B 0.08)5.3 magnet doping 1.0wt%Dy2O3,the magnetic properties have a sudden change nearby oxygen content 11000PPM. |
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| Keywords: | Nd-Fe-B permanent magnet dopant concentration oxygen content magnetic property |
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