Structure and magnetic properties of melt-spun Sm-Fe-Nb ribbons and their nitrides

被引：0

作者：

Wen-Long Yan

Yang Luo

Dun-Bo Yu

Gui-Yong Wu

Ning-Tao Quan

Yuan-Fei Yang

Hai-Jun Peng

Zi-Long Wang

机构：

[1] NationalEngineeringResearchCenterforRareEarthMaterials,GeneralResearchInstituteforNonferrousMetals,GriremAdvancedMaterialsCoLtd

来源：

RareMetals | 2018年 / 37卷 / 03期

关键词：

Melt-spinning; SmFe10-xNbx powders; Magnetic properties; XRD Rietveld; Mssbauer spectroscopy;

D O I：

暂无

中图分类号：

TG132.2 [特种电磁性质合金];

学科分类号：

080502 ;

摘要：

SmFe10-xNbx（x = 0, 0.1, 0.2, 0.3） ribbons and their nitrides were prepared by melt-spinning, followed by annealing and subsequent nitriding. The structure and magnetic properties were investigated by means of X-ray diffraction（XRD） using the Rietveld method, vibrating sample magnetometer（VSM）, transmission electron microscope（TEM） and Mossbauer spectroscopy. XRD analysis shows that the addition of Nb can impede the precipitation of Sm2 Fe17 and a-Fe phases and the Nb atoms occupy 2 e site in the alloys. At 300 K, the mean hyperfine fields of 2 e site are 29.58 T with Nb doping at x = 0.1 and the corresponding Curie temperature is 552 K. The optimal properties of remanence of Br = 0.9 T, intrinsic coercivity of Hcj= 741.5 kA·m-1, and maximum magnetic energy product of（BH）max= 124.2 kJ·m-3 are gained at x = 0.10 in the nitrides.

引用

页码：232 / 236

页数：5

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