Reactive infiltration processing of bulk and fiber-reinforced NiAl

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.


Published in:
Materials Research Society Symposium - Proceedings, 460, null, 737
Year:
1997
Publisher:
Materials Research Society
ISSN:
02729172
Keywords:
Note:
Massachusetts Inst of Technology, Cambridge, United States
Other identifiers:
Scopus: 2-s2.0-0030653863
Laboratories:




 Record created 2006-10-09, last modified 2018-04-20


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