Please use this identifier to cite or link to this item: https://scidar.kg.ac.rs/handle/123456789/9870
Title: Effect of structural transformations preceding crystallization on functional properties of Fe<inf>73.5</inf>Cu<inf>1</inf>Nb<inf>3</inf>Si <inf>15.5</inf>B<inf>7</inf> amorphous alloy
Authors: Maricic, Aleksa
Minic D.
Blagojevic, Vladimir
Kalezić-Glišović, Aleksandra
Minic D.
Issue Date: 2012
Abstract: This paper investigates the effect of structural changes preceding crystallization on functional properties of ribbon-shaped Fe 73.5Cu1Nb3Si15.5B7 amorphous alloy during annealing process in temperature range of 25 °C to 450 °C. It has been shown that this alloy is stable up to 500 °C when the stepwise crystallization starts. This process is preceded by structural relaxation process, including Curie temperature and the supercooled liquid region. The influence of these changes on magnetic properties of the alloy was investigated using thermomagnetic measurements, while their effect on the change in electron density of states at Fermi level was investigated by measuring thermoelectromotive force. It is also shown that magnetic susceptibility of this alloy can be increased by up to 40%, after successive annealing cycles at different temperatures. The measurements of electrical resistivity change in isothermal conditions in supercooled liquid region had been used to determine kinetic parameters of electrical conductivity. It has been shown that this process occurs in two stages: the first is kinetically controlled, whereas the second is diffusion controlled, occurring with activation energy of 139.4 J/mol K and 184.1 J/mol K, respectively. © 2011 Elsevier Ltd. All rights reserved.
URI: https://scidar.kg.ac.rs/handle/123456789/9870
Type: article
DOI: 10.1016/j.intermet.2011.09.009
ISSN: 0966-9795
SCOPUS: 2-s2.0-80155129094
Appears in Collections:Faculty of Technical Sciences, Čačak

Page views(s)

454

Downloads(s)

10

Files in This Item:
File Description SizeFormat 
PaperMissing.pdf
  Restricted Access
29.86 kBAdobe PDFThumbnail
View/Open


Items in SCIDAR are protected by copyright, with all rights reserved, unless otherwise indicated.