Experimental Investigation of the Isothermal Section at 800 °C of the Nd-Fe-Co Ternary System
| العنوان: | Experimental Investigation of the Isothermal Section at 800 °C of the Nd-Fe-Co Ternary System |
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| المؤلفون: | A. Ben Salah, M. Jemmali, N. Bouchaala, Lotfi Bessais, K. Nouri, Siwar Walha |
| المصدر: | Journal of Phase Equilibria and Diffusion. 38:561-567 |
| بيانات النشر: | Springer Science and Business Media LLC, 2017. |
| سنة النشر: | 2017 |
| مصطلحات موضوعية: | 010302 applied physics, Ternary numeral system, Materials science, Scanning electron microscope, Metals and Alloys, Analytical chemistry, Intermetallic, 02 engineering and technology, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 01 natural sciences, Isothermal process, Crystallography, 0103 physical sciences, Materials Chemistry, Binary system, Solubility, 0210 nano-technology, Ternary operation, Solid solution |
| الوصف: | The phase equilibrium of the ternary Nd-Fe-Co system at 800 °C was investigated by means of powder x-ray diffraction and scanning electron microscopy–energy dispersive x-ray spectroscopy. Seven binary compounds, i.e., Nd2Co17, NdCo5, Nd5Co19, Nd2Co7, NdCo3, NdCo2, Nd2Fe17 were identified to exist at this isothermal section. This isothermal section consists of ten single-phase, ten two-phase and six three-phase regions. All measured compositions and unit-cell refinements were performed at room temperature from quenched samples annealed at 800 °C for one week. The maximum solubility at 800 °C of Fe in NdCo2−x Fe x (MgCu2-type structure, Fd-3 m), NdCo3−x Fe x (PuNi3-type structure, R-3 m space group), Nd2Co7−x Fe x (Ce2Ni7-type structure, R-3 m), Nd5Co19−x Fe x (CeCo19-type structure, R-3 m space group), NdCo5−x Fe x (CaCu5-type structure, P6/mmm), Nd2Co17−x Fe x (Th2Zn17 type structure, R-3 m) and Nd2Fe17−x Co x (Th2Zn17 type structure, R-3 m) are about 31.6 at.% Fe, 47.9 at.% Fe, 13.3 at.% Fe, 8.6 at.% Fe, 10.37 at.%, 36.35 at.% Fe, and 58.23 at.% Fe respectively. The solid solubility range of Co in Nd2Fe17 form discontinuous series of 2 ranges is about 0-30.14 at.% Co, and 51.9-100 at.% Co and the solid solubility range of Fe in Nd2Co17 is about 0-48.1 at.% Fe, and 69.86-100 at.% Fe. |
| تدمد: | 1863-7345 1547-7037 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::df50c330bb0b53bfae45e32909406bc4 https://doi.org/10.1007/s11669-017-0552-9 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........df50c330bb0b53bfae45e32909406bc4 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 18637345 15477037 |
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