Magnetic properties and local structure of Fe-Zr-B-Cu nanocrystalline alloys

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Abstract

The Mössbauer spectra of nanocrystallized amorphous Fe-Zr based alloys are compared to those of melt-quenched microcrystalline Fe-Zr solid solution in the 4-800 K temperature and in the 0-7 T external magnetic field range. It is established for both cases that besides the well known sharp sextet of the bcc Fe phase (main line) and the broad spectrum component a satellite is also observed. Its hyperfine field shows the same temperature and external magnetic field dependence as that of the bcc structure. The results together with high precision X-ray data for the grain size and lattice parameter as a function of the nanocrystallization temperature make it possible to identify that the satellite is caused by (mainly) Zr dissolved in the bcc structure. Our results do not support the idea that the satellite structure is due to a separate interfacial phase.

Original languageEnglish
Pages (from-to)419-424
Number of pages6
JournalMaterials Science Forum
Volume269-272
Issue numberPART 1
Publication statusPublished - 1998

Fingerprint

Nanocrystalline alloys
Magnetic properties
magnetic properties
Satellites
Magnetic fields
Nanocrystallization
magnetic fields
Temperature
Lattice constants
temperature
Solid solutions
lattice parameters
solid solutions
grain size
X rays
x rays

Keywords

  • Fe-based soft magnetic material
  • Local structure
  • Mössbauer spectroscopy
  • Nanocrystal

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

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title = "Magnetic properties and local structure of Fe-Zr-B-Cu nanocrystalline alloys",
abstract = "The M{\"o}ssbauer spectra of nanocrystallized amorphous Fe-Zr based alloys are compared to those of melt-quenched microcrystalline Fe-Zr solid solution in the 4-800 K temperature and in the 0-7 T external magnetic field range. It is established for both cases that besides the well known sharp sextet of the bcc Fe phase (main line) and the broad spectrum component a satellite is also observed. Its hyperfine field shows the same temperature and external magnetic field dependence as that of the bcc structure. The results together with high precision X-ray data for the grain size and lattice parameter as a function of the nanocrystallization temperature make it possible to identify that the satellite is caused by (mainly) Zr dissolved in the bcc structure. Our results do not support the idea that the satellite structure is due to a separate interfacial phase.",
keywords = "Fe-based soft magnetic material, Local structure, M{\"o}ssbauer spectroscopy, Nanocrystal",
author = "T. Kem{\'e}ny and L. Varga and L. Kiss and J. Balogh and T. Pusztai and L. T{\'o}th and I. Vincze",
year = "1998",
language = "English",
volume = "269-272",
pages = "419--424",
journal = "Materials Science Forum",
issn = "0255-5476",
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number = "PART 1",

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TY - JOUR

T1 - Magnetic properties and local structure of Fe-Zr-B-Cu nanocrystalline alloys

AU - Kemény, T.

AU - Varga, L.

AU - Kiss, L.

AU - Balogh, J.

AU - Pusztai, T.

AU - Tóth, L.

AU - Vincze, I.

PY - 1998

Y1 - 1998

N2 - The Mössbauer spectra of nanocrystallized amorphous Fe-Zr based alloys are compared to those of melt-quenched microcrystalline Fe-Zr solid solution in the 4-800 K temperature and in the 0-7 T external magnetic field range. It is established for both cases that besides the well known sharp sextet of the bcc Fe phase (main line) and the broad spectrum component a satellite is also observed. Its hyperfine field shows the same temperature and external magnetic field dependence as that of the bcc structure. The results together with high precision X-ray data for the grain size and lattice parameter as a function of the nanocrystallization temperature make it possible to identify that the satellite is caused by (mainly) Zr dissolved in the bcc structure. Our results do not support the idea that the satellite structure is due to a separate interfacial phase.

AB - The Mössbauer spectra of nanocrystallized amorphous Fe-Zr based alloys are compared to those of melt-quenched microcrystalline Fe-Zr solid solution in the 4-800 K temperature and in the 0-7 T external magnetic field range. It is established for both cases that besides the well known sharp sextet of the bcc Fe phase (main line) and the broad spectrum component a satellite is also observed. Its hyperfine field shows the same temperature and external magnetic field dependence as that of the bcc structure. The results together with high precision X-ray data for the grain size and lattice parameter as a function of the nanocrystallization temperature make it possible to identify that the satellite is caused by (mainly) Zr dissolved in the bcc structure. Our results do not support the idea that the satellite structure is due to a separate interfacial phase.

KW - Fe-based soft magnetic material

KW - Local structure

KW - Mössbauer spectroscopy

KW - Nanocrystal

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VL - 269-272

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