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THE EFFECT ON THE MAGNETIC PROPERTIES OF THE DUAL-PHASE NANOCRYSTALLINE Nd(Fe,Co)B BONDED MAGNETS BY ADDING Ga

LI WEI DONG SHENG-ZHI LI XIU-MEI ZHU MING-GANG

THE EFFECT ON THE MAGNETIC PROPERTIES OF THE DUAL-PHASE NANOCRYSTALLINE Nd(Fe,Co)B BONDED MAGNETS BY ADDING Ga

LI WEI, DONG SHENG-ZHI, LI XIU-MEI, ZHU MING-GANG
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  • Received Date:  08 November 2000
  • Accepted Date:  17 January 2001
  • Published Online:  20 August 2001

THE EFFECT ON THE MAGNETIC PROPERTIES OF THE DUAL-PHASE NANOCRYSTALLINE Nd(Fe,Co)B BONDED MAGNETS BY ADDING Ga

  • 1. (1)钢铁研究总院功能材料研究所,北京100081; (2)钢铁研究总院功能材料研究所,北京100081;河北师范大学物理系,石家庄050016

Abstract: Effect of the Ga content substituting the Fe on the crystal structure and magnetic properties of the Nd2(Fe,Co)14B/(Fe,Co)3B+(little)α-Fe permanent magnetic materials is studied. The change mechanism of magnetic properties of the dual-phase nanocrystalline magnets is discussed.The results show that the crystal size was markedly decreased by adding Ga. With the increase of x, the dependence of the Br and the (BH)max on annealing time undergoes a chang from two-peak curves to one-peak curves in the Ga content range of xj Hc decreases at first to a minimum and then increases slowly. The best value of the magnetic properties is obtained at x=0.2.

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