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.
2-s2.0-0030653863
1997
Proceedings of the 1996 MRS Fall Meeting
460
737
742
Massachusetts Inst of Technology, Cambridge, United States