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烧结Nd-Fe-B取向度的研究

Study on Alignment Degree of Sintered Nd-Fe-B Magnets

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【作者】 何叶青熊科韩丽萍高学绪张茂才周寿增

【Author】 HE Yeqing; GAO Xuexu; ZHANG Maocai; ZHOU Shouzeng (State Key laboratory for Advanced Metals and Materials, School of Materials Science and Engineering,University of Science and Technology Beijing, Beijing, 100083, China);XIONG Ke; HAN Liping; (Beijing Jin

【机构】 北京科技大学新金属材料国家重点实验室!北京100083材料科学与工程学院北京北京京磁技术公司!北京100016北京科技大学新金属材料国家重点实验室!

【摘要】 提出了一种用普通X射线衍射谱定量测量烧结Nd-Fe-B磁体取向度的简单易行的新方法,并与用10~12T强脉冲磁场测量的Br/Js和(Br//→Br)/Br//值进行了比较。通过实验证明,单用X射线衍射谱中(105)与(006)晶面的相对衍射强度比I(015)/I(006)来讲估Nd-Fe-B磁体的取向度是不妥的。为提高在金属模压工艺条件下的取向度,应加大取向外磁场或者采取减小磁粉与模具之间摩擦力的措施。

【Abstract】 A new method for evaluating the alignment degree of sintered Nd-Fe-B magnets quantitatively by X -ray diffraction measure-ments was Proposed, and the results were compared with Br/Js and (Br// -Br)/Br// measured by pulse magnetic field greater than 10T. It is proved that evaluating the alignment degree only by the relative intensity rate of I(105)/I(006) is not fully reasonable. To improve the alignment degree of sintered Nd - Fe - B magnets on die pressing conditions, taking technologic measures such as increasing aligning magnetic field or minimizing frictions of Powders and dies is necessary.

  • 【文献出处】 功能材料 ,JOURNAL OF FUNCTIONAL MATERIALS , 编辑部邮箱 ,1999年05期
  • 【分类号】TF124
  • 【被引频次】10
  • 【下载频次】252
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