Experimental and theoretical studies on site preference of Ti in Nd2(Fe,Ti)14B

Dong, Guangle; Sui, Yanli; Qian, Ping; Wu, Yuan; Guo, Leichen

doi:10.1016/j.jmmm.2014.12.029

Cited by 5 publications

(1 citation statement)

References 21 publications

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“…The structure derived from the 250 K single crystal refinement is presented in Figs. 3a−3c and matches well with those published in the literature [6,7,[23][24][25].…”

Section: B Structural Characterizationsupporting

confidence: 88%

2Flux growth and characterization of Ce-substituted Nd2Fe14B single crystals

Susner

Conner

Saparov

et al. 2017

Journal of Magnetism and Magnetic Materials

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Single crystals of (Nd1−xCex)2Fe14B are grown out of Fe-(Nd,Ce) flux. Chemical and structural analysis of the crystals indicates that (Nd1−xCex)2Fe14B forms a solid solution until at least x = 0.38 with a Vegard-like variation of the lattice constants with x. Refinements of single crystal neutron diffraction data indicate that Ce has a slight site preference (7:3) for the 4g rare earth site over the 4f site. Magnetization measurements show that for x = 0.38 the saturation magnetization at 400 K, a temperature important to applications, falls from 29.8 for the parent Nd2Fe14B to 27.6 µB/f.u., the anisotropy field decreases from 5.5 T to 4.7 T, and the Curie temperature decreases from 586 to 543 K. First principles calculations carried out within density functional theory are used to explain the decrease in magnetic properties due to Ce substitution. Though the presence of the lower-cost and more abundant Ce slightly affects these important magnetic characteristics, this decrease is not large enough to affect a multitude of applications. Ce-substituted Nd2Fe14B is therefore a potential high-performance permanent magnet material with substantially reduced Nd content.

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“…The structure derived from the 250 K single crystal refinement is presented in Figs. 3a−3c and matches well with those published in the literature [6,7,[23][24][25].…”

Section: B Structural Characterizationsupporting

confidence: 88%