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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >MAGNETIC PROPERTIES OF NANOCOMPOSITE (ND,DY)(2)(FE,CO,ZR)(14)B AND ND(FE,MO)(12)N-X MATERIALS WITH AN EXCESS OF FE
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MAGNETIC PROPERTIES OF NANOCOMPOSITE (ND,DY)(2)(FE,CO,ZR)(14)B AND ND(FE,MO)(12)N-X MATERIALS WITH AN EXCESS OF FE

机译：纳米铁（ND，DY）（2）（FE，CO，ZR）（14）B和ND（FE，MO）（12）N-X材料的磁性

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摘要

Two-phase nanocomposite materials have been prepared by high-energy ball-milling (HEBM) Nd12.6-uDyuFe81.4-y-zCoyZrzB6 (2:14:1 phase) (u = 0, 0.75, 1.5 or 3.0; y = 0 or 11.6 and z = 0 or 0.5) or Nd12Fe75Mo13Nx(1:12 phase), with excess Fe and then annealing. Magnetic properties of materials containing volume fractions of up to 75% oi a magnetically soil Fe phase have been investigated and remanence enhancement observed. Optimum magnetic properties are obtained for materials with a volume traction of a magnetically soft phase of 37-40%; for (Nd,Dy)(2)(Fe,Co,Zr)(14)B/alpha-Fe powders a remanent magnetic polarization of 1.05 T and intrinsic coercivity of 509 kA m(-1); and for Nd(Fe,Mo)(12)N-x/alpha-Fe powders a remanent magnetic polarization of 0.85 T and intrinsic coercivity of 281 kA m(-1). For Cc-containing alloys, evidence was observed for the redistribution of Co in the HEBM process, resulting in a magnetically soft Fe(Co) phase. The magnetic properties of isotropic Nd-2(Fe,Co,Zr)(14)B/alpha-Fe and Nd(Fe,Mo)(12)N-x/alpha-Fe type magnets, compacted by hot pressing, are reported. [References: 19]
机译：两相纳米复合材料已通过高能球磨（HEBM）Nd12.6-uDyuFe81.4-y-zCoyZrzB6（2：14：1相）（u = 0、0.75、1.5或3.0; y = 0或11.6，z = 0或0.5）或Nd12Fe75Mo13Nx（1:12相），并加入过量的Fe，然后退火。已经研究了包含高达75％的土壤铁相体积分数的材料的磁性能，并观察了剩磁的增强。对于具有37-40％的软磁性相的体积牵引力的材料，可以获得最佳的磁性。对于（Nd，Dy）（2）（Fe，Co，Zr）（14）B / alpha-Fe粉末，剩余磁极化强度为1.05 T，固有矫顽力为509 kA m（-1）;对于Nd（Fe，Mo）（12）N-x / alpha-Fe粉末，剩余磁极化强度为0.85 T，固有矫顽力为281 kA m（-1）。对于含Cc的合金，观察到证据表明在HEBM过程中Co会重新分布，从而产生软磁性的Fe（Co）相。报告了通过热压压实的各向同性的Nd-2（Fe，Co，Zr）（14）B / alpha-Fe和Nd（Fe，Mo）（12）N-x / alpha-Fe型磁体的磁性能。 [参考：19]

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