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Mechanochemical Synthesis and Nitrogenation of the Nd1.1Fe10CoTi Alloy for Permanent Magnet

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dc.contributor.authorMartínez Sánchez, Hugo
dc.contributor.authorHadjipanayis, George
dc.contributor.authorPérez Alcázar, Germán Antonio
dc.contributor.authorZamora Alfonso, Ligia Edith
dc.contributor.authorTrujillo Hernández, Juan Sebastián
dc.date.accessioned2021-11-12T22:02:42Z
dc.date.available2021-11-12T22:02:42Z
dc.date.issued2021-06-24
dc.description.abstractIn this work, the mechanochemical synthesis method was used for the first time to produce powders of the nanocrystalline Nd1.1Fe10CoTi compound from Nd2O3, Fe2O3, Co and TiO2. High-energy-milled powders were heat treated at 1000 °C for 10 min to obtain the ThMn12-type structure. Volume fraction of the 1:12 phase was found to be as high as 95.7% with 4.3% of a bcc phase also present. The nitrogenation process of the sample was carried out at 350 °C during 3, 6, 9 and 12 h using a static pressure of 80 kPa of N2. The magnetic properties Mr, µ0Hc, and (BH)max were enhanced after nitrogenation, despite finding some residual nitrogen-free 1:12 phase. The magnetic values of a nitrogenated sample after 3 h were Mr = 75 Am2 kg–1, µ0Hc = 0.500 T and (BH)max = 58 kJ·m–3. Samples were aligned under an applied field of 2 T after washing and were measured in a direction parallel to the applied field. The best value of (BH)max ~ 114 kJ·m–3 was obtained for 3 h and the highest µ0Hc = 0.518 T for 6 h nitrogenation. SEM characterization revealed that the particles have a mean particle size around 360 nm and a rounded shape.es_CO
dc.description.sponsorshipUniversidad de Ibaguées_CO
dc.identifier.citationMartínez Sánchez, H.; Hadjipanayis, G.; Pérez Alcázar, G.A.; Zamora Alfonso, L.E.; Trujillo Hernández, J.S. Mechanochemical Synthesis and Nitrogenation of the Nd1.1Fe10CoTi Alloy for Permanent Magnet. Molecules 2021, 26, 3854. https://doi.org/10.3390/molecules26133854es_CO
dc.identifier.issn1420-3049
dc.identifier.urihttps://www.mdpi.com/1420-3049/26/13/3854
dc.language.isoenes_CO
dc.publisherMoleculeses_CO
dc.subjectPermanent magnetses_CO
dc.subjectMechanochemical synthesises_CO
dc.subjectNitrogenationes_CO
dc.subjectExtrinsic magnetic propertieses_CO
dc.subjectX-ray diffraction patternses_CO
dc.subjectSpin reorientationes_CO
dc.titleMechanochemical Synthesis and Nitrogenation of the Nd1.1Fe10CoTi Alloy for Permanent Magnetes_CO
dc.typeArticlees_CO
dspace.entity.typePublication
eperson.emailjuan.trujillo@unibague.edu.coes_CO
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