Open AccessTHE EFFECT ON THE MAGNETIC PROPERTIES OF THE DUAL-PHASE NANOCRYSTALLINE Nd(Fe,Co)B BONDED MAGNETS BY ADDING Ga
Author(s) -
Minggang Zhu,
Wei Li,
Shuxiang Dong,
Xiumei Li
Publication year - 2001
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.50.1600
Subject(s) - nanocrystalline material , materials science , magnet , phase (matter) , dual (grammatical number) , condensed matter physics , nuclear magnetic resonance , nanotechnology , mechanical engineering , physics , art , literature , engineering , quantum mechanics
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.