Special features of Nd(Pr) – Dy – Fe – Co – B magnets with high content of Co

Petrakov, A. F.; Пискорский, В. П.; Burkhanov, G. S.; Repina, M. V.; Ivanov, S. I.

doi:10.1007/s11041-012-9506-3

Cited by 3 publications

(2 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The real sample solution may show a higher Nd concentration than Dy due to the initial composition of the Nd-magnet, [27][28][29] thus we prepare sample solutions of Nd: 100 mM and Dy 10 mM in 0.3 M HNO3, where a ten-times higher concentration of Nd than Dy. Using this condition, our goal is also Dy 98% recovery with a lower than 2% Nd coextracted.…”

Section: Batchwise Multi-stage Extraction Using a Ten-times Higher Comentioning

confidence: 99%

Basic Research on Batchwise Multi-stage Extractions Using TODGA for Dy/Nd Separation

2020

View full text Add to dashboard Cite

The mutual separation of lanthanides has been studied by multi-stage extraction using an extractant, DGA (diglycolamide) compounds. N,N,N′,N′-tetraoctyl-DGA (TODGA) has a high extractability to lanthanides and a relatively high separation factor (SF) between Dy and Nd (SF of over 20) from HNO3 media. Complete separation with such SF values can be achieved by multi-stage extraction. Less information on multi-stage extraction compared to batch extraction has been presented up to now. We thus conducted a basic study. By confirming the experimental data to be identical to calculations, the sample solution including both metals was employed for batchwise multi-stage extraction. Ninety-seven percent of Dy with under detection limit of Nd could be recovered into the organic phase from Nd with a ten-times higher concentration than Dy using the condition, 0.1 M TODGA/n-dodecane and 0.3 M HNO3 by the multi extraction of 9 × 9 stages for organic and aqueous phases.

show abstract

Section: Batchwise Multi-stage Extraction Using a Ten-times Higher Comentioning

confidence: 99%

Basic Research on Batchwise Multi-stage Extractions Using TODGA for Dy/Nd Separation

2020

View full text Add to dashboard Cite

show abstract

“…The prepa ration technology is described in [8,9]. The chemical compositions of the samples studied are given in table.…”

Section: Sample Preparation and Experimental Techniquementioning

confidence: 99%

Effect of stoichiometry of Fe and Co on the temperature stability of the magnetic anisotropy in Pr-Dy-Fe-Co-B alloys

et al. 2015

Self Cite

View full text Add to dashboard Cite

An increase in the cobalt concentration in Pr-Dy-Fe-Co-B alloys leads to the substitution of Co atoms for Fe atoms in the atomic positions, which are the nearest neighbors with the rare earth metal atoms, and to the formation of a significant number of boron rich phases. At the highest (limiting) cobalt concentrations, boron can be substituted for the transition metals. As a result, the exchange interaction between magnetic sublattices of the rare earth and transition metals is weakened. In turn, this leads to a decrease in the contribution from the rare earth ions to the magnetic anisotropy, the temperature stability of which increases.

show abstract

Crystallographic parameters of magnetic Pr 2 Fe 14−x Co x B-type alloys determined using anomalous x-ray diffraction with synchrotron radiation

Galego¹,

Serna²,

Ramanathan³

et al. 2017

Journal of Magnetism and Magnetic Materials

View full text Add to dashboard Cite

Special features of Nd(Pr) – Dy – Fe – Co – B magnets with high content of Co

Cited by 3 publications

References 11 publications

Basic Research on Batchwise Multi-stage Extractions Using TODGA for Dy/Nd Separation

Basic Research on Batchwise Multi-stage Extractions Using TODGA for Dy/Nd Separation

Effect of stoichiometry of Fe and Co on the temperature stability of the magnetic anisotropy in Pr-Dy-Fe-Co-B alloys

Crystallographic parameters of magnetic Pr 2 Fe 14−x Co x B-type alloys determined using anomalous x-ray diffraction with synchrotron radiation

Contact Info

Product

Resources

About