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Rapid E-Beam Heating for Measuring Thermodynamics of Metastable Materials

Published online by Cambridge University Press:  26 February 2011

J. A. Knapp
Affiliation:
Sandia National Laboratories, Albuquerque, New Mexico 87185
D. M. Follstaedt
Affiliation:
Sandia National Laboratories, Albuquerque, New Mexico 87185
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Abstract

A line-source electron-beam system has been used to heat thin surface layers of metastable phases at a rate which precludes solid-state transformations to stable phases, thus permitting the observation of melting transitions normally missed with slow heating. A detailed example of a new approach to this method is shown for metastable icosahedral Al-Re and. crystalline Al6Re.

Type
Research Article
Copyright
Copyright © Materials Research Society 1988

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References

REFERENCES

1. Thompson, M. O., Calvin, G. J., Mayer, J. W., Peercy, P. S., Poate, J. M., Jacobson, D. C., Cullis, A. G., and Chew, N. G., Phys. Rev. Lett. 52, 2360 (1984).Google Scholar
2.-Knapp, J. A. and Follstaedt, D. M., Phys. Rev. Lett. 58, 2454 (1987); Mat. Res. Soc. Symp. Proc. 74, 167 (1987).Google Scholar
3. Knapp, J. A. and Picraux, S. T., J. Appl. Phys. 53, 1492 (1982); J. A. Knapp, J. Appl. Phys. 58, 2584 (1985).Google Scholar
4. Knapp, J. A. and Follstaedt, D. M., Phys. Rev. Lett. 55, 1591 (1985); D. M. Follstaedt and J. A. Knapp, J. Appl. Phys. 59, 1756 (1986).Google Scholar
5. Follstaedt, D. M. and Knapp, J. A., to appear in Mat. Sci. Eng. 89, (1988).Google Scholar
6. Cahn, J. W., Shechtman, D. and Gratias, D., J. Mater. Res. 1, 13 (1986).Google Scholar
7. Wilkinson, C., Acta. Cryst. 22, 924 (1967). We find better agreement with our diffraction patterns by increasing b=0.761 nm to 0.788 nm.CrossRefGoogle Scholar
8. Binary Alloy Phase Diagrams, edited by Massalski, T. B., Murray, J. L., Bennett, L. H. and Baker, H. (ASM, Metals Park, Ohio, 1986) 1, p. 157.Google Scholar