Reactive infiltration processing of bulk and fiber-reinforced NiAl

T. A. Venkatesh*, C. W. Sanmarchi, A. Mortensen, D. C. Dunand

*Corresponding author for this work

Research output: Contribution to journalConference article

2 Scopus citations

Abstract

Reactive infiltration processing was investigated in the NiAl system using nickel-powder and nickel-wire preforms. Inhomogeneous microstructures were often obtained with powder preforms which had high surface-to-volume ratio, low permeability and irregular infiltration paths. Homogeneous NiAl could be obtained with nickel-wire preforms which had lower surface-to-volume ratio, higher permeability and regular infiltration paths. NiAl composites reinforced with short molybdenum fibers and long tungsten and sapphire fibers were also fabricated by reactive infiltration.

Original languageEnglish (US)
Pages (from-to)737-742
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
Volume460
StatePublished - Jan 1 1997
EventProceedings of the 1996 MRS Fall Meeting - Boston, MA, USA
Duration: Dec 4 1996Dec 5 1996

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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