Thermal and soft magnetic properties of Co40Fe22Ta8B30 glassy particles: In-situ X-ray diffraction and magnetometry studies
Creators
- 1. Department of Materials Science and Engineering, Shiraz University of Technology, Shiraz (Iran, Islamic Republic of)
- 2. POLITEHNICA University of Timisoara, P-ta Victoriei 2 Timisoara (Romania)
- 3. IFW Dresden, Institute for Complex Materials, Helmholtzstr. 20, 01069 Dresden (Germany)
- 4. TU Dresden, Institute of Materials Science, 01062 Dresden (Germany)
- 5. Photon Science DESY, Notkestraße 85, 22603 Hamburg (Germany)
Description
The structural evolution of Co40Fe22Ta8B30 glassy particles has been studied by in-situ high-energy synchrotron X-ray diffraction (XRD) upon isochronal annealing. The changes in position, intensity, and full width at half maximum (FWHM) of the first and second diffuse maxima of the XRD patterns suggest the occurrence of irreversible structural relaxation upon the first heating up to a temperature close to the glass transition temperature Tg. The variations in reduced pair correlation functions upon annealing are discussed in the frame of the topological fluctuation theory for structural relaxation. Isochronal annealing of the Co40Fe22Ta8B30 glassy particles improves their soft magnetic properties through decreasing the coercivity and increasing the magnetic susceptibility, saturation magnetization, and Curie temperature
Additional details
Identifiers
- DOI
- 10.1063/1.4892041;
Publishing Information
- Journal Title
- Journal of Applied Physics
- Journal Volume
- 116
- Journal Issue
- 5
- Journal Page Range
- p. 054904-054904.8
- ISSN
- 0021-8979
- CODEN
- JAPIAU
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 46020773
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- ANNEALING; BORON 8; COERCIVE FORCE; CORRELATION FUNCTIONS; CURIE POINT; FLUCTUATIONS; GLASS; HEATING; MAGNETIC SUSCEPTIBILITY; MAGNETIZATION; PARTICLES; RELAXATION; SATURATION; SYNCHROTRONS; X-RAY DIFFRACTION
- Descriptors DEC
- ACCELERATORS; BETA DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; BORON ISOTOPES; COHERENT SCATTERING; CYCLIC ACCELERATORS; DIFFRACTION; FUNCTIONS; HEAT TREATMENTS; ISOTOPES; LIGHT NUCLEI; MAGNETIC PROPERTIES; MILLISECONDS LIVING RADIOISOTOPES; NUCLEI; ODD-ODD NUCLEI; PHYSICAL PROPERTIES; RADIOISOTOPES; SCATTERING; THERMODYNAMIC PROPERTIES; TRANSITION TEMPERATURE; VARIATIONS
Optional Information
- Notes
- (c) 2014 AIP Publishing LLC