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Phase analysis of near equiatomic bulk FeRh alloys: X-ray versus neutron diffraction and magnetization measurements
dc.contributor.author | Padrón Alemán, K. | |
dc.contributor.author | Arreguín Hernández, M. L. | |
dc.contributor.author | Cuello, G. J. | |
dc.contributor.author | Álvarez Alonso, Pablo | |
dc.contributor.author | Sánchez Llamazares, J.L. | |
dc.date.accessioned | 2024-09-26T08:30:18Z | |
dc.date.available | 2024-09-26T08:30:18Z | |
dc.date.issued | 2024 | |
dc.identifier.issn | 0254-0584 | |
dc.identifier.uri | https://hdl.handle.net/10651/74710 | |
dc.description.abstract | The information obtained by X-ray diffraction (XRD) by impinging the X-ray beam onto the flat surface of bulk Fe–Rh alloys is contrasted with that provided by the thermomagnetic analysis curves measured under a magnetic field of 5 mT and 2 T, and the neutron diffraction (ND) patterns. The experiments were performed on slices cut from bulk Fe50Rh50 and Fe49Rh51 alloys prepared by induction melting followed by 48 h of thermal annealing at 1273 K. Whereas ND patterns and magnetization curves, directly and indirectly point out that the samples are single-phase with a CsCl-type crystal structure undergoing a magnetoelastic transition that changes the magnetic structure from antiferromagnetic to ferromagnetic on heating, multiple phases are identified in the XRD patterns, which modify upon polishing or etching the surface with a mixture of hydrochloric (HCl) and nitric acid (HNO3) at a volume ratio of 90:10 from 30 to 210 min. The limitation of XRD for accurately characterizing the phase constitution within the bulk of Fe–Rh alloys is underlined. | spa |
dc.description.sponsorship | Work supported by CONAHCYT, Mexico (project No. CF-2023-I- 2143), Laboratorio Nacional de Nanociencias y Nanotecnologia (LINAN, IPICyT), Spanish MCIN/AEI/10.13039/501100011033/and ERDF, UE (project number: PID2022-138256NB-C21. M.L. Arreguín-Hernández thanks DGAPA-UNAM and CONAHCYT for supporting her postdoctoral position at UNAM and Ph.D. studies at IPICyT (scholarship 861515; 2023–2020), respectively. K. Padrón-Alemán acknowledges the Institut Laue-Langevin for his PhD/CFR contract (Reference: ESP-5-2023). The authors are grateful to M. Sc. Beatriz A. Rivera Escoto for her technical support. | spa |
dc.language.iso | eng | spa |
dc.relation.ispartof | Materials Chemistry and Physics, 327 | spa |
dc.rights | © 2024 Elsevier B.V. | |
dc.subject | Iron-rhodium alloys | spa |
dc.subject | X-ray and neutron diffraction analyses | spa |
dc.subject | First-order magnetoelastic transition | spa |
dc.title | Phase analysis of near equiatomic bulk FeRh alloys: X-ray versus neutron diffraction and magnetization measurements | spa |
dc.type | journal article | spa |
dc.identifier.doi | 10.1016/j.matchemphys.2024.129904 | |
dc.relation.projectID | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2022-138256NB-C21/ES/BUSCANDO MATERIALES MAGNETOCALORICOS MEJORADOS PARA LA LICUEFACCION DE HIDROGENO APROVECHANDO LA ANISOTROPIA MAGNETICA/ | spa |
dc.relation.publisherversion | https://doi.org/10.1016/j.matchemphys.2024.129904 | spa |
dc.rights.accessRights | embargoed access | spa |
dc.type.hasVersion | AM | spa |
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