Microstructure of Ni(Cr)-Cr3C2 -Cr7C3 -TiC composite powder

Grzegorz Dercz 2Formanek Bolesław 1Pająk Lucjan 2Krzysztof Szymański 1

1. Silesian University of Technology, Department of Materials Science, Krasińskiego 8, Katowice 40-019, Poland
2. University of Silesia, Institute of Physics and Chemistry of Metals, Bankowa 12, Katowice 40-007, Poland

Abstract

The Ni(Cr)-Cr3C2-Cr7C3-TiC composite powder was prepared by SHS (Self-propagating High-temperature Synthesis) process using elemental powders as starting materials. As-prepared powder was ground by a high-energy mill. The morphology of as-prepared and ground powders was analyzed by SEM method; the microstructure of powders was also observed by light microscopy. The X-ray diffraction methods were applied for the structure analysis of the studied samples. The Rietveld method appeared to be very useful in the verification of the qualitative phase composition and in the determination of phase abundance in the studied material. The parameters of diffraction line profiles were determined by PRO-FIT Toraya procedure. The crystallite sizes and lattice distortions were analyzed using Williamson-Hall method. It was found that during high-energy milling a significant decrease of crystallite size to nanoscale is observed only for Ni(Cr) phase.

Legal notice
  • Legal notice:

    Copyright (c) Pielaszek Research, all rights reserved.
    The above materials, including auxiliary resources, are subject to Publisher's copyright and the Author(s) intellectual rights. Without limiting Author(s) rights under respective Copyright Transfer Agreement, no part of the above documents may be reproduced without the express written permission of Pielaszek Research, the Publisher. Express permission from the Author(s) is required to use the above materials for academic purposes, such as lectures or scientific presentations.
    In every case, proper references including Author(s) name(s) and URL of this webpage: http://science24.com/paper/2061 must be provided.

 

Related papers
  1. Precipitations of tungsten in quasicrystalline Al-Cu-Fe-W alloys
  2. Kompozytowe proszki o wysokiej dyspersji faz międzymetalicznych i ceramicznych otrzymywanych aktywowaną syntezą wysokotemperaturową ASHS
  3. Structure, magnetic and dielectric properties of Bi5Ti3FeO15 multiferroic ceramics after high energy ball milling and free sintering process.
  4. X-ray and electron microscopy techniques studies on nanocrystalline MgO powder materials prepared by sol-gel method
  5. Structure of nanocrystalline powders of MgO prepared by sol-gel method
  6. The effect of γ-phase particles on microstructure and properties of Co-Ni-Ga alloys
  7. Structure studies on nanocrystalline MgO powders prepared by sol-gel method dried under different conditions
  8. X-ray analysis of ground NiAl-Cr3C2-Al2O3 composite powders with nanocrystalline NiAl phase

Presentation: poster at E-MRS Fall Meeting 2004, Symposium I, by Grzegorz Dercz
See On-line Journal of E-MRS Fall Meeting 2004

Submitted: 2004-05-06 17:57
Revised:   2009-06-08 12:55
Google
 
Web science24.com
© 1998-2021 pielaszek research, all rights reserved Powered by the Conference Engine