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- Title
Two Fe-Zr-B-Cu Nanocrystalline Magnetic Alloys Produced by Mechanical Alloying Technique.
- Authors
Daza, Jason; Ben Mbarek, Wael; Escoda, Lluisa; Saurina, Joan; Suñol, Joan-Josep
- Abstract
Fe-rich soft magnetic alloys are candidates for applications as magnetic sensors and actuators. Spring magnets can be obtained when these alloys are added to hard magnetic compounds. In this work, two nanocrystalline Fe-Zr-B-Cu alloys are produced by mechanical alloying, MA. The increase in boron content favours the reduction of the crystalline size. Thermal analysis (by differential scanning calorimetry) shows that, in the temperature range compressed between 450 and 650 K, wide exothermic processes take place, which are associated with the relaxation of the tensions of the alloys produced by MA. At high temperatures, a main crystallisation peak is found. A Kissinger and an isoconversional method were used to determine the apparent activation of the exothermic processes. The values are compared with those found in the scientific literature. Likewise, adapted thermogravimetry allowed for the determination of the Curie temperature. The functional response has been analysed by hysteresis loop cycles. According to the composition, the decrease of the Fe/B ratio diminishes the soft magnetic behaviour.
- Subjects
MECHANICAL alloying; SCIENTIFIC literature; MAGNETIC alloys; DIFFERENTIAL scanning calorimetry; MAGNETIC actuators; HYSTERESIS loop; MAGNETIC sensors
- Publication
Technologies (2227-7080), 2023, Vol 11, Issue 3, p78
- ISSN
2227-7080
- Publication type
Article
- DOI
10.3390/technologies11030078