Evolution of Magnetic and Mechanical Properties in FINEMET-Type Precursor Glasses during Isothermal and Pulse Heat Treatments |
| L. Hubača, L. Novák a, S. Balla b and A. Lovas b
aDepartment of Physics, Technical University of Košice, Park Komenského 2, 042 00 Košice, Slovakia bDepartment of Automobiles and Vehicle Manufacturing, Budapest University of Technology and Economics, Stoczek u.2., 1111 Budapest, Hungary |
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| The effects on the evolution of coercivity (Hc) and brittleness in FINEMET-type precursor glasses during traditional (isothermal) and pulse heat treatments are compared. The time and temperature dependences of these quantities are monitored during the series of isothermal and pulse heat treatments. The activation energy for Hc relaxation is lower than that for the brittleness evolution, however, dramatic changes in the values of these quantities can be detected above 300°C. Both quantities change mainly with temperature, they are less time-dependent. |
DOI: 10.12693/APhysPolA.131.672 PACS numbers: 75.50.Kj, 75.30.Gw, 75.70.-i |