Study of the Microstructural, Thermal, and Magnetic Properties of High-Energy Ball-Milled Nanocrystalline Fe(Al)
| Autor: | Hana Ibn Gharsallah, Myriam Azabou, Mohamed Khitouni, Jason Daza, Joan-Josep Suñol |
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| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
General Chemical Engineering
Nanocristalls -- Propietats tèrmiques X-rays -- Diffraction Raigs X -- Difracció Nanocrystals -- Mechanical properties Condensed Matter Physics Nanocrystals -- Thermal properties Nanocristalls -- Propietats magnètiques FeAl alloy high-energy ball milling X-ray diffraction nanostructure magnetic properties thermal stability Inorganic Chemistry Materials nanoestructurats -- Magnetic properties Nanostructured materials -- Mechanical properties Aliatges Alloys General Materials Science Nanocristalls -- Mechanical properties Nanocrystals -- Magnetic properties |
| Zdroj: | Crystals; Volume 12; Issue 10; Pages: 1430 Crystals, 2022, vol. 12, núm. 10, p. 1430 Articles publicats (D-F) DUGiDocs – Universitat de Girona instname |
| ISSN: | 2073-4352 |
| DOI: | 10.3390/cryst12101430 |
| Popis: | In this work, structural, microstructural, thermal, and magnetic properties of a Fe-25at%Al alloy produced by high-energy mechanical milling were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), differential scanning calorimetry (DSC), and vibrating sample magnetometry (VSM) techniques. At the early stage of the milling process, three phases, namely, Fe, Al, and Fe(Al), coexist in the milled powder. After 20 h of milling, the results of the refinement of the XRD pattern reveal the formation of the supersaturated bcc-Fe(Al) solid solution with a crystallite size of 10 nm. The DSC curves show several overlapped exothermic peaks associated with the relaxation of the deformed structure and various phase transitions, such as the formation of Al13Fe4 and Fe3Al intermetallic. During milling times, the alloyed samples have a hard-ferromagnetic behavior, where Hc varies from 628 Oe to 746 Oe when the milling time increases from 4 to 40 h. The magnetic properties were related to the microstructural changes. |
| Databáze: | OpenAIRE |
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