Nanocrystallization of the Amorphous Fe14Ni40Zr7B12 Alloys Studied by the Mössbauer Spectroscopy |
| M. Kopcewicza, B. Idzikowskib and J. Kalinowskaa aInstitute of Electronic Materials Technology, Wólczyñska 133, 01-919 Warszawa, Poland bInstitute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznañ, Poland |
| Full Text PDF |
| Formation of the soft magnetic nanostructure in amorphous Fe41Ni40Zr7B12 alloy due to heat treatment is studied by the Mössbauer, differential scanning calorimetry, and X-ray diffraction techniques. Annealing at temperatures 520 -580°C leads to the formation of extremely soft nanocrystalline alloy as revealed by the rf-Mössbauer measurements. The superparamagnetic behaviour was observed for the alloy annealed at 620-640°C. At higher annealing temperatures good soft magnetic properties deteriorate. |
| DOI: 10.12693/APhysPolA.102.301 PACS numbers: 76.80.+y, 75.50.Kj, 75.50.Bb, 81.40.--z |