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Superparamagnetic behaviour of Fe80B12Zr7Cu alloys with different fractions of primary nanocrystalline phase
- Source :
- Materials Science and Engineering: A. :219-222
- Publication Year :
- 2004
- Publisher :
- Elsevier BV, 2004.
-
Abstract
- The superparamagnetic behaviour of nanocrystalline (nc) Fe80B12Zr7Cu alloys, having different amounts of body centred cubic (bcc) fraction controlled by DSC heat treatments was studied by high temperature SQUID magnetometry and Mossbauer spectroscopy. The granule diameter calculated from magnetic measurements is significantly higher than the X-ray determined grain size but is proportional to that value. The superparamagnetic behaviour is observed at substantially lower temperatures by the Mossbauer spectroscopy than by the macroscopic magnetisation studies, which means that the applied magnetic field significantly influences the superparamagnetic behaviour. © 2003 Elsevier B.V. All rights reserved.
- Subjects :
- Materials science
Mössbauer effect
Mechanical Engineering
Analytical chemistry
Condensed Matter Physics
Grain size
Nanocrystalline material
law.invention
SQUID
Magnetization
Nuclear magnetic resonance
Differential scanning calorimetry
Mechanics of Materials
law
Mössbauer spectroscopy
General Materials Science
Superparamagnetism
Subjects
Details
- ISSN :
- 09215093
- Database :
- OpenAIRE
- Journal :
- Materials Science and Engineering: A
- Accession number :
- edsair.doi...........338cecf26b8bf353af84f840834ebb14
- Full Text :
- https://doi.org/10.1016/j.msea.2003.10.101