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High Pressure Equation of State for Fe2O3

Published online by Cambridge University Press:  10 February 2011

Frank J. Zerilli  and
Hermenzo D. Jones
Frank J. Zerilli
Affiliation:
Energetic Materials Research and Technology Department, Naval Surface Warfare Center Indian Head Division, 10901 New Hampshire Avenue, Silver Spring, MD 20903-5640
Hermenzo D. Jones
Affiliation:
Energetic Materials Research and Technology Department, Naval Surface Warfare Center Indian Head Division, 10901 New Hampshire Avenue, Silver Spring, MD 20903-5640
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Abstract

A Debye-Gruneisen equation of state for hematite (Fe2O3) was developed for use in studying the high pressure solid state reaction Al + Fe2O3 → Fe + A12O3. A simple, single Curie temperature Curie-Weiss ferromagnetic term was used to account for the complex antiferromagnetic contributions to the entropy and specific heat. In the absence of information on the variation of Curie temperature with pressure, it is taken to be constant, so that the antiferromagnetism makes no contribution to the pressure-volume equation of state.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 418: Symposium GG – Decomposition, Combustion, and Detonation Chemistry of Energetic Materials , 1995 , 421
Copyright
Copyright © Materials Research Society 1996

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References

1. Aharoni, A., Frei, E. H., and Schieber, M., “Curie Point and Origin of Weak Ferromagnetism in Hematite”, Phys. Rev. 127, 439 (1962).Google Scholar
2. Lielmezs, J. and Chaklader, A. C. D., “Reversible Thermal Effect in α-Fe2O3 at 690° ± 5°C”, Phys. Rev. Letters 13, 866 (1965).Google Scholar
3. Liebfried, G. and Ludwig, W., in Solid State Physics, edited by Seitz, F. and Turnbull, D., Academic, London, 1961, Vol.12, p. 275.Google Scholar
4. Murnaghan, F. D., Proc. Nat. Acad. Sci. 30, 244 (1944).Google Scholar
5. Hugoniot, H., “Sur la propagation du mouvement dans les corps et specialement dans le gaz parfaits”, J. de l'ecole polytechnique 58, 1–125 (1889).Google Scholar
6. Courant, R. and Friedrichs, K. O., Supersonic Flow and Shock Waves, Springer-Verlag, New York, 1976, pp. 116ff.Google Scholar
7. Wannier, G. H., Elements of Solid State Theory, Cambridge University Press, Cambridge, 1959, pp. 94ff.Google Scholar