Compression of Hydrazine to above 200 GPa.

ORAL

Abstract

Hydrazine (N2H4) was subjected to pressures up to 213 GPa and analyzed using synchrotron infrared spectroscopy, X-ray diffraction, and Raman spectroscopy. These measurements reveal several phase transitions accompanied by changes in hydrogen bonding, with indications of potential partial symmetrization of hydrogen bonds at elevated pressures. The findings are compared to theoretical predictions of structure, phase transitions, and equations of states of N2H4 as well as the behavior of H2O and NH3 at these pressures. We also examined the pressure-induced chemistry of hydrazine with other molecules. The implications for the Hugoniot of hydrazine are discussed.

*This work was supported by DOE/NNSA through the Chicago/DOE Alliance Center and by the DoD/ARO through the EXtreme EnErgy Density Center at the University of Illinois Chicago.

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Publication: Ripani R., Safari S., Ahart M., Gramsch S., Liu Z., Hemley R. J.; Compression of Hydrazine to Above 200 GPa. In preparation.

Presenters

  • Roma Ripani

    • University of Illinois Chicago

Authors

  • Roma Ripani

    • University of Illinois Chicago

  • Fatemeh Safari

    • University of Illinois Chicago

  • Muhtar Ahart

    • University of Illinois Chicago

  • Zhenxian Liu

    • University of Illinois at Chicago

  • Stephen A Gramsch

    • University of Illinois Chicago

  • Russell J Hemley

    • University of Illinois at Chicago