Chapter 43. Melt-Infiltration and Wetting Transitions of Ni3Al Alloy Infiltrated Into TiC-Al2O3 Preforms

  1. Rajan Tandon,
  2. Andrew Wereszczak and
  3. Edgar Lara-Curzio
  1. Josip Vaci and
  2. Kevin Plucknett

Published Online: 27 MAR 2008

DOI: 10.1002/9780470291313.ch43

Mechanical Properties and Performance of Engineering Ceramics II: Ceramic Engineering and Science Proceedings, Volume 27, Issue 2

Mechanical Properties and Performance of Engineering Ceramics II: Ceramic Engineering and Science Proceedings, Volume 27, Issue 2

How to Cite

Vaci, J. and Plucknett, K. (2006) Melt-Infiltration and Wetting Transitions of Ni3Al Alloy Infiltrated Into TiC-Al2O3 Preforms, in Mechanical Properties and Performance of Engineering Ceramics II: Ceramic Engineering and Science Proceedings, Volume 27, Issue 2 (eds R. Tandon, A. Wereszczak and E. Lara-Curzio), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470291313.ch43

Author Information

  1. Materials Engineering Program, Department of Process Engineering and Applied Science, Dalhousie University 1360 Barrington Street Halifax, Nova Scotia, B3J 1Z1, Canada

Publication History

  1. Published Online: 27 MAR 2008
  2. Published Print: 1 JAN 2006

ISBN Information

Print ISBN: 9780470080528

Online ISBN: 9780470291313

SEARCH

Keywords:

  • melt-infiltration;
  • ppm;
  • sintering;
  • scanning electron microscopy (SEM);
  • summarized

Summary

TiC–Al2O3–Ni3Al composites have been prepared using a conventional melt–infiltration process. The addition of AI2O3, which is poorly wet by molten Ni3Al, was shown to result in a transition between wetting and infiltration, and wetting/spreading without infiltration, depending upon the Al2O3 particle size and volume fraction. Successful melt–infiltration can be achieved with more coarse Al2O3 particles, resulting in densities comparable to cermets prepared without AI2O3, offering the potential for lowering raw materials costs for these composites.