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Results of the technical exchange agreement between NASA and DuPont on the containerless drop tube solidification of NiAl3

By P. A. Curreri, M. Kelly and E. C. Ethridge


The final results of the Drop Tube Solidification of NiAl3 are presented. Problems associated with the utilization of a dripper furnace in the drop tube are discussed and the modification of experimental procedures required to achieve results are described. Sample microstructures of drop tube samples are compared with other samples. The dendrite arm spacings of drop tube samples are correlated with the rapid cooling rates

Year: 1984
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