Affordable Access

Access to the full text

Microstructure and optical characterization of mechanosynthesized nanostructured TiSixN(1-x)\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\mathrm{TiSi}_{x}\mathrm{N}_{(1-x)}$$\end{document} cermets

Authors
  • Bhaskar, Ujjwal Kumar1
  • Pradhan, S K2
  • 1 Sreegopal Banerjee College, Bagati, Magra, Hooghly, 712148, India , Hooghly (India)
  • 2 The University of Burdwan, Golapbag, Burdwan, 713104, India , Burdwan (India)
Type
Published Article
Journal
Bulletin of Materials Science
Publisher
Springer-Verlag
Publication Date
Dec 18, 2019
Volume
43
Issue
1
Identifiers
DOI: 10.1007/s12034-019-2010-2
Source
Springer Nature
Keywords
License
Yellow

Abstract

Nanocrystalline cubic titanium silicon nitrides (TiSixN(1-x))\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\hbox {TiSi}_{{x}}\hbox {N}_{(1-x)})$$\end{document} with different Si concentrations have been synthesized at room temperature by mechanical alloying the stoichiometric compositions of ingredient powders in a nitrogen atmosphere. Structure and microstructure characterizations of unmilled and all ball-milled powders are carried out by analysing respective X-ray diffraction patterns employing the Rietveld structure and microstructure refinement method. The presence of titanium, silicon and nitrogen in TiSixN(1-x)\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\hbox {TiSi}_{{x}}\hbox {N}_{(1-x)}$$\end{document} has been confirmed by energy-dispersive X-ray transmission electron microscopy analysis. Transmission electron microscopy image reveals that the average size of the spherical particles of 9-h-milled powder is ∼\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\sim $$\end{document}5 nm and size distribution is almost monodispersed, which corroborates well with the result of the Rietveld analysis. Bandgap energies of these solid solutions are determined by analysing respective UV–Vis absorption spectrum and it is found that the addition of silicon to insulating nanocrystalline TiN results in a reduction of bandgap energy and all solid solutions become wide-bandgap semiconductors with the addition of Si in different proportions.

Report this publication

Statistics

Seen <100 times