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X-Ray Structural Study of Li3N at High Pressure

Published online by Cambridge University Press:  10 February 2011

Allen C. Ho ,
Maurice K. Granger  and
Arthur L. Ruoff
Allen C. Ho
Affiliation:
Department of Materials Science and Engineering, Cornell University, Ithaca, NY 14853
Maurice K. Granger
Affiliation:
Department of Materials Science and Engineering, Cornell University, Ithaca, NY 14853
Arthur L. Ruoff
Affiliation:
Department of Materials Science and Engineering, Cornell University, Ithaca, NY 14853
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Abstract

The equation of state (EOS) of Li3N has been determined by energy-dispersive x-ray diffraction (EDXD) using synchrotron radiation up to 35 GPa at ambient temperature. Both the hexagonal D6h4(P63/mmc) and the hexagonal D6h1(P6/mmm) phases were present at ambient pressure. The D6h1 -structure completely transforms into the D6h4 -structure at modest pressure. The change in Gibb's free energy as a function of pressure for Li3N was calculated using the experimental EOS.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 499: Symposium DD – High Pressure Materials Research , 1997 , 133
Copyright
Copyright © Materials Research Society 1998

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References

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