Diffusion markers in thin-film VAl/sub 3/, Co/sub 2/Al/sub 9/, CrAl/sub 7/, MoAl/sub 12/, and Ni/sub 3/Al formation
The dominant diffusing species in VAl/sub 3/, Co/sub 2/Al/sub 9/, CrAl/sub 7/, and MoAl/sub 12/ formation was determined. These are the initial phases to form in metal--Al reactions and the most Al-rich phases on the phase diagrams (except for VAl/sub 3/). It was found for the growth of VAl/sub 3/, Co/sub 2/Al/sub 9/, CrAl/sub 7/, and MoAl/sub 12/ that Al is the dominant moving species. This is very different from results with metal--Si marker experiments where either the metal or Si can be the dominant moving species in the initial phase. In aluminides the dominant moving species is related to the initial phase formed. For the growth of the Ni-rich phase, Ni/sub 3/Al, Ni was the dominant moving species.
- Research Organization:
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853
- OSTI ID:
- 6811038
- Journal Information:
- J. Mat. Res.; (United States), Vol. 1:6
- Country of Publication:
- United States
- Language:
- English
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