<abstract xmlns="http://www.w3.org/1999/xhtml">In this work, an amorphous alloy with the nominal composition of Fe78Si9B13 was produced by a melt spinning method. Using different velocities of a quenching cooper wheel enabled us to study the influence of quenching rate upon the structural characteristics of the resulting ribbons. Structural features of the samples were checked by Mössbauer spectroscopy and X-ray diffraction. The latter performed in a grazing angle geometry enabled us to explore both sides of the as-quenched ribbons. The onset of crystallization was estimated by differential scanning calorimetry (DSC) measurements. Surface features of the ribbons were examined by Scanning Electron Microscopy (SEM). In order to observe structural relaxation phenomena the samples were annealed below the onset of crystallization at 450 °C for 1 hour in Ar protective atmosphere. Even though the annealed ribbons are still amorphous relevant changes were observed in their hyperfin parameters as derived from Mssbauer spectrometry.</abstract>

In this work, an amorphous alloy with the nominal composition of Fe78Si9B13 was produced by a melt spinning method. Using different velocities of a quenching cooper wheel enabled us to study the influence of quenching rate upon the structural characteristics of the resulting ribbons. Structural features of the samples were checked by Mössbauer spectroscopy and X-ray diffraction. The latter performed in a grazing angle geometry enabled us to explore both sides of the as-quenched ribbons. The onset of crystallization was estimated by differential scanning calorimetry (DSC) measurements. Surface features of the ribbons were examined by Scanning Electron Microscopy (SEM). In order to observe structural relaxation phenomena the samples were annealed below the onset of crystallization at 450 °C for 1 hour in Ar protective atmosphere. Even though the annealed ribbons are still amorphous relevant changes were observed in their hyperfin parameters as derived from Mssbauer spectrometry.

Influence of Quenching Rate on the Structure, Morphology, and Hyperfine Parameters of Amorphous Ribbons

Slovak University of Technology in Bratislava, Faculty of Electrical Engineering and Information Technology, Institute of Nuclear and Physical Engineering, Ilkovičova 3, 812 19 Bratislava,

Department of Physics, Bu-Ali Sina University, Hamedan,

Department of Nuclear Reactors, Czech Technical University in Prague, V Holešovičkách 2, 180 00 Prague,

Journal of Electrical Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

In this work, an amorphous alloy with the nominal composition of Fe78Si9B13 was produced by a melt spinning method. Using different velocities of a quenching...

Influence of Quenching Rate on the Structure, Morphology, and Hyperfine Parameters of Amorphous Ribbons

Published Online: Nov 02, 2016

Page range: 365 - 370

Received: Jul 15, 2016

DOI: https://doi.org/10.1515/jee-2016-0052

Keywords
amorphous alloys, XRD, DSC, SEM, Mössbauer spectrometry, heat treatment

© 2016 Faculty of Electrical Engineering and Information Technology, Slovak University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Influence of Quenching Rate on the Structure, Morphology, and Hyperfine Parameters of Amorphous Ribbons

Published Online: Nov 02, 2016

Page range: 365 - 370

Received: Jul 15, 2016

DOI: https://doi.org/10.1515/jee-2016-0052

Keywordsamorphous alloys, XRD, DSC, SEM, Mössbauer spectrometry, heat treatment

© 2016 Faculty of Electrical Engineering and Information Technology, Slovak University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
amorphous alloys, XRD, DSC, SEM, Mössbauer spectrometry, heat treatment