Hard magnetic properties of melt-spun Mn-Al-C alloys

A. Pasko, F. Mazaleyrat, M. Lobue, E. Fazakas, L. Varga

Research output: Chapter in Book/Report/Conference proceedingConference contribution

16 Citations (Scopus)

Abstract

Structural and magnetic characterization of Mnx-yAl 100-x-yC2y (x = {50, 55} y = {0, 1}) melt-spun ribbons is reported. To obtain the metastable ferromagnetic τ-phase, rapidly solidified alloys were annealed either in a vacuum furnace at 823 K or directly in the vibrating sample magnetometer under applied magnetic field. Optimal magnetic properties were demonstrated by Mn54Al44C2 samples proved to be single-phase with a coercivity of 0.19 T measured in both cases. For this composition the structural ε→τ phase transformation has been magnetically detected at 786 K, Curie temperature of τ-phase (Tc = 592 K, Tp = 610 K) has been determined using mean field approximations in ferromagnetic and paramagnetic regions. Rietveld refinement of X-ray diffraction spectra was employed to analyse the phase constitution of annealed alloys, lattice parameters as a function of chemical composition and mean grain size for the phases involved.

Original languageEnglish
Title of host publicationEPJ Web of Conferences
Volume40
DOIs
Publication statusPublished - 2013

Fingerprint

vacuum furnaces
magnetic properties
constitution
magnetometers
ribbons
coercivity
phase transformations
Curie temperature
lattice parameters
chemical composition
grain size
approximation
diffraction
magnetic fields
x rays

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Pasko, A., Mazaleyrat, F., Lobue, M., Fazakas, E., & Varga, L. (2013). Hard magnetic properties of melt-spun Mn-Al-C alloys. In EPJ Web of Conferences (Vol. 40). [06008] https://doi.org/10.1051/epjconf/20134006008

Hard magnetic properties of melt-spun Mn-Al-C alloys. / Pasko, A.; Mazaleyrat, F.; Lobue, M.; Fazakas, E.; Varga, L.

EPJ Web of Conferences. Vol. 40 2013. 06008.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Pasko, A, Mazaleyrat, F, Lobue, M, Fazakas, E & Varga, L 2013, Hard magnetic properties of melt-spun Mn-Al-C alloys. in EPJ Web of Conferences. vol. 40, 06008. https://doi.org/10.1051/epjconf/20134006008
Pasko A, Mazaleyrat F, Lobue M, Fazakas E, Varga L. Hard magnetic properties of melt-spun Mn-Al-C alloys. In EPJ Web of Conferences. Vol. 40. 2013. 06008 https://doi.org/10.1051/epjconf/20134006008
Pasko, A. ; Mazaleyrat, F. ; Lobue, M. ; Fazakas, E. ; Varga, L. / Hard magnetic properties of melt-spun Mn-Al-C alloys. EPJ Web of Conferences. Vol. 40 2013.
@inproceedings{b68d40813418468188e6b7fb6da2011a,
title = "Hard magnetic properties of melt-spun Mn-Al-C alloys",
abstract = "Structural and magnetic characterization of Mnx-yAl 100-x-yC2y (x = {50, 55} y = {0, 1}) melt-spun ribbons is reported. To obtain the metastable ferromagnetic τ-phase, rapidly solidified alloys were annealed either in a vacuum furnace at 823 K or directly in the vibrating sample magnetometer under applied magnetic field. Optimal magnetic properties were demonstrated by Mn54Al44C2 samples proved to be single-phase with a coercivity of 0.19 T measured in both cases. For this composition the structural ε→τ phase transformation has been magnetically detected at 786 K, Curie temperature of τ-phase (Tc = 592 K, Tp = 610 K) has been determined using mean field approximations in ferromagnetic and paramagnetic regions. Rietveld refinement of X-ray diffraction spectra was employed to analyse the phase constitution of annealed alloys, lattice parameters as a function of chemical composition and mean grain size for the phases involved.",
author = "A. Pasko and F. Mazaleyrat and M. Lobue and E. Fazakas and L. Varga",
year = "2013",
doi = "10.1051/epjconf/20134006008",
language = "English",
volume = "40",
booktitle = "EPJ Web of Conferences",

}

TY - GEN

T1 - Hard magnetic properties of melt-spun Mn-Al-C alloys

AU - Pasko, A.

AU - Mazaleyrat, F.

AU - Lobue, M.

AU - Fazakas, E.

AU - Varga, L.

PY - 2013

Y1 - 2013

N2 - Structural and magnetic characterization of Mnx-yAl 100-x-yC2y (x = {50, 55} y = {0, 1}) melt-spun ribbons is reported. To obtain the metastable ferromagnetic τ-phase, rapidly solidified alloys were annealed either in a vacuum furnace at 823 K or directly in the vibrating sample magnetometer under applied magnetic field. Optimal magnetic properties were demonstrated by Mn54Al44C2 samples proved to be single-phase with a coercivity of 0.19 T measured in both cases. For this composition the structural ε→τ phase transformation has been magnetically detected at 786 K, Curie temperature of τ-phase (Tc = 592 K, Tp = 610 K) has been determined using mean field approximations in ferromagnetic and paramagnetic regions. Rietveld refinement of X-ray diffraction spectra was employed to analyse the phase constitution of annealed alloys, lattice parameters as a function of chemical composition and mean grain size for the phases involved.

AB - Structural and magnetic characterization of Mnx-yAl 100-x-yC2y (x = {50, 55} y = {0, 1}) melt-spun ribbons is reported. To obtain the metastable ferromagnetic τ-phase, rapidly solidified alloys were annealed either in a vacuum furnace at 823 K or directly in the vibrating sample magnetometer under applied magnetic field. Optimal magnetic properties were demonstrated by Mn54Al44C2 samples proved to be single-phase with a coercivity of 0.19 T measured in both cases. For this composition the structural ε→τ phase transformation has been magnetically detected at 786 K, Curie temperature of τ-phase (Tc = 592 K, Tp = 610 K) has been determined using mean field approximations in ferromagnetic and paramagnetic regions. Rietveld refinement of X-ray diffraction spectra was employed to analyse the phase constitution of annealed alloys, lattice parameters as a function of chemical composition and mean grain size for the phases involved.

UR - http://www.scopus.com/inward/record.url?scp=84872743748&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84872743748&partnerID=8YFLogxK

U2 - 10.1051/epjconf/20134006008

DO - 10.1051/epjconf/20134006008

M3 - Conference contribution

AN - SCOPUS:84872743748

VL - 40

BT - EPJ Web of Conferences

ER -