Solid-state phase equilibria in the Er-Nd-Fe ternary system at 1073 K
| العنوان: | Solid-state phase equilibria in the Er-Nd-Fe ternary system at 1073 K |
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| المؤلفون: | M. Saidi, K. Nouri, S. Walha, Lotfi Bessais, M. Jemmali |
| المساهمون: | Institut de Chimie et des Matériaux Paris-Est (ICMPE), Institut de Chimie du CNRS (INC)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS) |
| المصدر: | Journal of Alloys and Compounds Journal of Alloys and Compounds, Elsevier, 2020, 844, pp.155754. ⟨10.1016/j.jallcom.2020.155754⟩ |
| بيانات النشر: | HAL CCSD, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | [PHYS]Physics [physics], Ternary numeral system, Materials science, Mechanical Engineering, Metals and Alloys, Energy-dispersive X-ray spectroscopy, Analytical chemistry, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Miscibility, 0104 chemical sciences, Mechanics of Materials, Materials Chemistry, Binary system, Solubility, 0210 nano-technology, Ternary operation, Powder diffraction, ComputingMilieux_MISCELLANEOUS, Solid solution |
| الوصف: | The solid state phase equilibria in the ternary Er-Nd-Fe system at 1073 K in all the composition ranges were investigated using the experimental results of the X-ray powder diffraction analysis (XRD) as well as those obtained from the Scanning electron microscopy (SEM) equipped with Energy dispersive spectroscopy (EDS). The binary systems Er–Fe, Er–Nd and Nd-Fe were investigated prior to the study of the ternary one. Six binary compounds were identified to exist at this isothermal sectionss at 1073 K namely: ErFe 2 ( F d 3 ¯ m -MgCu 2 structure type), ErFe 3 ( R 3 ¯ m -PuNi 3 structure type), Er 6 Fe 23 (Fm-3m-Th 6 Mn 23 structure type), Er 2 Fe 17 ( P 6 3 / m m c -Th 2 Ni 17 structure type), Nd 2 Fe 17 ( R 3 ¯ m -Th 2 Zn 17 structure type), and δ-NdEr ( R 3 ¯ m -Sm structure type). No new ternary compounds were found in all investigated ternary alloy samples. The phase relations are governed by seven three-phase regions, sixteen two-phase regions and nine single-phase regions, as well as a small liquid area in the Nd-rich region. At 1073 K, we have observed that the highest solubility of Nd in ErFe 2 is about 16.6 at. % Nd, while the Er 1 − x NdxFe 3 solid solution based on binary ErFe 3 extends up to 7.5 at. % Nd. The XRD and the SEM/EDS analyses show that there is no miscibility of Nd in Er 6 Fe 23 . The pair of the binary compounds Er 2 Fe 17 and Nd 2 Fe 17 extend through the ternary system parallel to the Nd-Er edge. The maximum homogeneity range of the Er 2 − x NdxFe 17 solid solution reaches 5.3 at. % Nd, while that of the Nd 2 − x ErxFe 17 solid solution is about 1.6 at. % Er. In the Er-Nd binary system, the maximum solid solubility of Nd in Er is about 38.4 at. % Nd, and the solubility limit of Er in Nd is about 29.8 at. % Er. |
| اللغة: | English |
| تدمد: | 0925-8388 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7fb951ddcf5681af5fa7745321e3e241 https://hal.archives-ouvertes.fr/hal-03165263/document |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi.dedup.....7fb951ddcf5681af5fa7745321e3e241 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 09258388 |
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