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Crystallization and kinetics studies of Ti20Zr20Cu60-xNix\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\hbox {Ti}_{{20}}\hbox {Zr}_{{20}}\hbox {Cu}_{60-x}\hbox {Ni}_{{x}}$$\end{document} (x=10,20,30\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$x = 10, 20, 30$$\end{document} and 40) metallic glasses

Authors
  • Rao, P Rama1, 2
  • Bhatnagar, Anil K3
  • Majumdar, Bhaskar4
  • 1 University of Hyderabad, Hyderabad, 500046, India , Hyderabad (India)
  • 2 CSIR-Central Glass and Ceramic Research Institute, Kolkata, 700032, India , Kolkata (India)
  • 3 University of Hyderabad, Hyderabad, 50046, India , Hyderabad (India)
  • 4 Defence Metallurgical Research Laboratory (DMRL), Kanchanbagh, Hyderabad, 500 058, India , Hyderabad (India)
Type
Published Article
Journal
Bulletin of Materials Science
Publisher
Springer-Verlag
Publication Date
Dec 19, 2019
Volume
43
Issue
1
Identifiers
DOI: 10.1007/s12034-019-2000-4
Source
Springer Nature
Keywords
License
Yellow

Abstract

Synthesis and characterization of Ti20Zr20Cu60-xNix\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\hbox {Ti}_{{20}}\hbox {Zr}_{{20}}\hbox {Cu}_{60-x}\hbox {Ni}_{{x}}$$\end{document} (x=10,20,30\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$x = 10, 20, 30$$\end{document} and 40) metallic glasses are reported in this paper. Glassy ribbons are produced by rapid quenching using the standard copper wheel roller technique in argon atmosphere. Their structural characterization is carried out by X-ray diffraction (XRD) and thermal behaviour (crystallization) study by differential scanning calorimetry (DSC). Results of XRD on both sides of each ribbon sample confirmed that each sample was indeed amorphous/glassy as only a very broad peak in XRD pattern was observed. Metallic glass Ti20Zr20Cu50Ni10\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\hbox {Ti}_{{20}}\hbox {Zr}_{{20}}\hbox {Cu}_{{50}}\hbox {Ni}_{{10}}$$\end{document} shows three crystallization peaks in non-isothermal DSC scans while other three samples show only a single crystallization peak. The activation energy of crystallization for each sample has been calculated using three available models, namely, those of Kissinger, Augis–Bennett and Ozawa. All the three models gave nearly similar activation energies for a given sample within 10%.

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