2019
DOI: 10.1016/j.matchar.2018.12.022
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Influences of element segregation on the magnetic properties in nanocrystalline Nd-Ce-Fe-B alloys

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Cited by 42 publications
(16 citation statements)
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“…In recent years, the low cost of Ce-containing Nd-Fe-B permanent magnets, in some areas being a potential alternative to those based on expensive rare-earth elements (Nd, Pr, Dy, Tb), has stimulated considerable research efforts [1,2]. [4,7] The anisotropy of the Nd 2 Fe 14 B compound is dominated by the rare-earth atoms that occupy two inequivalent sites, 4f and 4g, of the tetragonal structure [8,9].…”
Section: Introductionmentioning
confidence: 99%
“…In recent years, the low cost of Ce-containing Nd-Fe-B permanent magnets, in some areas being a potential alternative to those based on expensive rare-earth elements (Nd, Pr, Dy, Tb), has stimulated considerable research efforts [1,2]. [4,7] The anisotropy of the Nd 2 Fe 14 B compound is dominated by the rare-earth atoms that occupy two inequivalent sites, 4f and 4g, of the tetragonal structure [8,9].…”
Section: Introductionmentioning
confidence: 99%
“…The Mössbauer spectrometry results showed that the ThMn 12 -type structure obtained after arc-melting was clearly not homogeneous. As it was not possible to describe three subspectra for 8i, 8j and 8f positions ( Figure 3 ), a distribution of parameters was used by similarity to these already known from previous investigations, where Ce substitution for Nd in similar alloys was reported to be responsible for lowering of the hyperfine field ( B hf ) [ 39 , 40 , 41 ]. Consequently, the mean value of the hyperfine field parameter was checked and estimated to be equal to 28.7 ± 0.5, 28.7 ± 0.5, 29.9 ± 0.5 and 30.6 ± 0.5 T for the Zr 0.4 Ce 0.6 Fe 10 Si 2 , Zr 0.3 Nd 0.1 Ce 0.6 Fe 10 Si 2 , Zr 0.2 Nd 0.2 Ce 0.6 Fe 10 Si 2 , and Zr 0.1 Nd 0.3 Ce 0.6 Fe 10 Si 2 , respectively.…”
Section: Resultsmentioning
confidence: 99%
“…With the constant consumption of expensive Pr, Nd, Dy, and Tb REs, the highly abundant REs (HAREs) of Ce and La face a large backlog due to the weak intrinsic magnetic properties of the compounds of (Ce/La) 2 Fe 14 B, [ 25,26 ] resulting in a serious imbalance in RE utilization. [ 27–30 ] They have been used in low‐cost RE‐Fe–B magnets, for example, multiple main‐phase magnets; [ 31–33 ] however, less attention focuses on using them for diffusion sources. Our previous work tried to exploit La and La/Ce‐based low‐melting sources, but their caused coercivity enhancement is still very margin.…”
Section: Introductionmentioning
confidence: 99%