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Amorphous Ni-Zr Phase Formation in Self-Supporting Thin-Film Lateral-Diffusion Couples

Published online by Cambridge University Press:  26 February 2011

J. C. Barbour  and
J. W. Mayer
J. C. Barbour
Affiliation:
Department of Materials Science and Engineering Cornell University, Ithaca, NY 14853 USA
J. W. Mayer
Affiliation:
Department of Materials Science and Engineering Cornell University, Ithaca, NY 14853 USA
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Abstract

The formation of an amorphous Ni-Zr alloy, by heating to cause interdiffusion in the temperature range 250°C to 325°C, was demonstrated in a self-supporting lateral-diffusion couple. Micro-area diffraction in a scanning transmission electron microscope (STEM) indicates that microcrystalline ordering in the amorphous phase must be on a scale less than 5 nm. The samples were heated in a vacuum furnace to form the amorphous phase and later heated in the STEM for in situ observation of crystalline compoundformation. The amorphous to crystalline transformation occurs first in theZr-rich regions at 370°C. A crystalline phase begins to consume the Ni rich amorphous material, at 450° C; but at 325° C, the amorphous phase is stable up to 20.5 hours, even in the presence of crystalline compounds.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 57: Symposium I – Phase Transitions in Condensed Systems--Experiments and Theory , 1985 , 419
Copyright
Copyright © Materials Research Society 1987

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References

Barbour, J. C., Nastasi, M., and Mayer, J. W. (1986). Appl. Phys. Lett. 48, 517.Google Scholar
Buschow, K. H. J. (1984). J. Phys. F: Met. Phys. 14, 593.CrossRefGoogle Scholar
Cheng, Y.-T., Johnson, W. L., and Nicolet, M.-A. (1985). Appl. Phys. Lett. 47, 800.CrossRefGoogle Scholar
Schröder, H., Samwer, K., and Köster, U. (1985). Phys. Rev. Lett. 54, 197.Google Scholar
Schröder, R. B. and Johnson, W. L. (1983). Phys. Rev. Lett. 51, 415.Google Scholar
Van Rossum, M., Nicolet, M.-A., and Johnson, W. L. (1984). Phys. Rev. B 29, 5498.Google Scholar
Zheng, L. R, (1985). Thesis Cornell University.Google Scholar
Zingu, E. C. (1984). Thesis University of Capetown.Google Scholar