We present an experimental point for the carbon equation of state (EOS) at megabar pressures, obtained by laser-driven shock waves. The rear side emissivity of “two-materials two-steps” targets (Al-C) was recorded with space and time resolution and, by applying the impedance mismatch method, allowed a direct determination of relative EOS points. Experiments were performed at the PALS and LULI laboratories using carbon samples with two different values of initial density, in order to explore a wider region of the phase diagram. Previously unreached pressures were obtained. The results are compared with previous experiments and with available theoretical models and seem to show a high compressibility of carbon at megabar pressures. © 2004 The American Physical Society.
CITATION STYLE
Batani, D., Strati, F., Stabile, H., Tomasini, M., Lucchini, G., Ravasio, A., … Piseri, P. (2004). Hugoniot Data for Carbon at Megabar Pressures. Physical Review Letters, 92(6). https://doi.org/10.1103/PhysRevLett.92.065503
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