Intrinsic Magnetic Properties of Ce2Fe14B Modified by Al, Ni, or Si

Intrinsic magnetic properties (saturation magnetization, anisotropy fields, and Curie temperatures) of Ce2Fe14B doped with Al, Ni, and Si are presented. Substitution for Fe by these elements leads to the formation of solid solutions that crystallize in the tetragonal Nd2Fe14B structure. Substituting Al, Ni, or Si for Fe leads to a decrease in both the saturation magnetization and the anisotropy field of Ce2Fe14B. Ni and Si increase the Curie temperature of Ce2Fe14B while Al reduces it. While, for the Ce2(Fe14−xTx)B containing Ni, a maximum Curie temperature of 210 °C was observed at 9 atom % Ni (x = 1.45), the highest value of 252 °C was found for the Ce2Fe14B containing 14 atom % Si (x = 2.26).

[1]  M. Jurczyk,et al.  Effect of silicon additions on the magnetic properties of Nd2Fe12Co2B alloy , 1987 .

[2]  F. Pinkerton,et al.  Magnetic hardening of Ce2Fe14B , 2012 .

[3]  Xuchao Wang,et al.  The microstructure and magnetic properties of melt-spun CeFeB ribbons with varying Ce content , 2015, Electronic Materials Letters.

[4]  A. Alam,et al.  Site-preference and valency for rare-earth sites in (R-Ce)2Fe14B magnets , 2013 .

[5]  Yingchang Yang,et al.  Anisotropic ternary Ce13Fe80B7 powders prepared by hydrogenation–disproportionation–desorption–recombination process and the diffusion of Ce–Cu eutectic alloys , 2013 .

[6]  A. Alam,et al.  Mixed valency and site-preference chemistry for cerium and its compounds: A predictive density-functional theory study , 2013, 1311.0962.

[7]  J. Xiao,et al.  Pinning effect of the grain boundaries on magnetic domain wall in FeCo-based magnetic alloys , 1999 .

[8]  Satoshi Hirosawa,et al.  Magnetization and magnetic anisotropy of R2Fe14B measured on single crystals , 1986 .

[9]  F. Shi,et al.  Magnetic properties of polycrystalline FeBSi alloys with ultrafine grains , 1996 .

[10]  M. Tessema,et al.  Crystal structure and magnetic properties of Ce2Fe14−xCoxB alloys , 2013 .

[11]  H. Ku,et al.  Magnetic properties of the new permanent magnet compounds Nd2(Fe0.2M0.1)14B (M ≡ Sc, Ti, V, Cr, Mn, Co, Ni)☆ , 1987 .

[12]  M. Tessema,et al.  Synthesis of CeFe$_{10.5}$Mo$_{1.5}$ with ThMn$_{12}$-Type Structure by Melt Spinning , 2013 .

[13]  J. F. Herbst,et al.  R 2 Fe 14 B materials: Intrinsic properties and technological aspects , 1991 .

[14]  On the magnetic behaviour of Y2Fe14−xNixB and Y2Fe14−xCoxB☆ , 1985 .

[15]  G. Asti,et al.  Singular points in the magnetization curve of a polycrystalline ferromagnet , 1974 .

[16]  F. Pinkerton,et al.  High Curie temperature of Ce-Fe-Si compounds with ThMn12 structure , 2015 .

[17]  A. Pathak,et al.  High performance Nd-Fe-B permanent magnets without critical elements , 2016 .

[18]  F. Landgraf,et al.  Determining the effect of grain size and maximum induction upon coercive field of electrical steels , 2011 .

[19]  M. Jurczyk,et al.  Magnetic properties of Nd2Fe14x Six B compounds , 1987 .

[20]  Magnetic properties of Y2Fe14−xMxB compounds where M=Si or Cu , 1987 .

[21]  K. Sun,et al.  Magnetic Hardening of CeFe11Ti and the Effect of TiC Addition , 2015, IEEE Transactions on Magnetics.

[22]  K. Binnemans,et al.  Recycling of rare earths from NdFeB magnets using a combined leaching/extraction system based on the acidity and thermomorphism of the ionic liquid [Hbet][Tf2N] , 2015 .

[23]  A. Pathak,et al.  Magnetic properties of bulk, and rapidly solidified nanostructured (Nd1-xCex)2Fe14-yCoyB ribbons , 2016 .

[24]  R. Eibler,et al.  Temperature dependence of anisotropy fields and initial susceptibilities in R2Fe14B compounds , 1986 .

[25]  A. Pathak,et al.  Cerium: An Unlikely Replacement of Dysprosium in High Performance Nd–Fe–B Permanent Magnets , 2015, Advanced materials.

[26]  Guo Shuai,et al.  Phase constitution and microstructure of Ce—Fe—B strip-casting alloy , 2014 .

[27]  O. A. Pringle,et al.  A NEUTRON DIFFRACTION AND MOSSBAUER SPECTRAL STUDY OF THE STRUCTURE AND MAGNETIC PROPERTIES OF THE Y2FE14-XSIXB SOLID SOLUTIONS , 1994 .

[28]  O. Moze,et al.  Magnetocrystalline anisotropy of Ni and Mn substituted Nd2Fe14B compounds , 1987 .

[29]  D. B. D. Mooij,et al.  Magnetic properties of ternary rare-earth compounds of the type R2Fe14B , 1984 .

[30]  Shuai Guo,et al.  Effect of Ce on the Magnetic Properties and Microstructure of Sintered Didymium-Fe-B Magnets , 2014, IEEE Transactions on Magnetics.

[31]  H. Kirchmayr,et al.  EXCHANGE INTERACTION AND MAGNETIC-ANISOTROPY IN ND2(FE13M)B COMPOUNDS (M=GA, SI, AL) , 1989 .

[32]  F. Pinkerton,et al.  Magnetic hardening of CeFe12−xMox and the effect of nitrogenation , 2014 .

[33]  M. Sagawa,et al.  Magnetic properties of Nd 2 (Fe 1-x M x ) 14 B measured on single crystals (M =Al, Cr, Mn and Co) , 1987 .

[34]  L. Stanciu,et al.  Bulk magnetic properties of the Y2TxFe14-xB compounds, where T = Al, Ni or Co , 1986 .

[35]  N. Ashcroft,et al.  Vegard's law. , 1991, Physical review. A, Atomic, molecular, and optical physics.

[36]  Structure and Magnetic Properties of R2Fe14−xNixB Compounds (R Nd and Gd) , 1989 .

[37]  Effects of Ga Addition on the Formability of Main Phase and Microstructure of Hot-Deformed Ce–Fe–B Magnets , 2016, IEEE Transactions on Magnetics.

[38]  R. Eibler,et al.  THE TEMPERATURE DEPENDENCE OF THE ANISOTROPY FIELD IN R2Fe14B COMPOUNDS (R = Y, La, Ce, Pr, Nd, Gd, Ho, Lu) , 1985 .

[39]  J. J. Croat,et al.  Neodymium-iron-boron permanent magnets , 1991 .

[40]  F. Pinkerton,et al.  Magnetic properties of CeFe11-xCoxTi with ThMn12 structure , 2014 .

[41]  A. Morrish,et al.  Mössbauer study of the permanent‐magnet material Nd2(Fe1−xNix)14B , 1988 .

[42]  F. Hu,et al.  Substitution of Ce for Nd in preparing R2Fe14B nanocrystalline magnets , 2015 .

[43]  M. Jurczyk.  On the magnetic behavior of Nd/sub 2/Fe/sub 12-x/T/sub x/Co/sub 2/B compounds (T=Al, V, Cr) , 1988 .

[44]  J. L. Li,et al.  Neutron‐diffraction and Mössbauer effect study of the preferential silicon site occupation and magnetic structure of Nd2Fe14−xSixB , 1993 .