Equation-of-state study of copper using laser-induced shocks near 10 Mbar pressure and revalidation of theoretical modelling

Shukla M; Pant HC; Senecha VK; Rai VN; Khare P; Verma AK; Rao RS

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Equation-of-state study of copper using laser-induced shocks near 10 Mbar pressure and revalidation of theoretical modelling

机译：激光在10 Mbar压力附近的激振下铜的状态方程研究和理论模型的重新验证

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Laser-driven shock wave experiments have been performed to determine equation of state (EOS) of copper using impedance matching technique in the pressure range 8-11 Mbar. A 2J/200 ps Nd: YAG laser beam is used to induce dynamic shocks in aluminum foil (reference material) and Al-Cu layered targets. EOS of copper is obtained at shock pressures of 8.9 Mbar and 10.4 Mbar with a pressure enhancement of similar to 1.66 at Al-Cu interface. The experimental data points are consistent with the predictions of the EOS model based on first principle theory and are also in close agreement with the simulation results obtained using one-dimensional radiation hydro-code MULTI that uses SESAME data tables for EOS and opacity values.

机译：已经进行了激光驱动的冲击波实验，以在8-11 Mbar的压力范围内使用阻抗匹配技术确定铜的状态方程（EOS）。 2J / 200 ps Nd：YAG激光束用于在铝箔（参考材料）和Al-Cu层状靶材中引起动态冲击。铜的EOS在8.9 Mbar和10.4 Mbar的冲击压力下获得，在Al-Cu界面处的压力增强类似于1.66。实验数据点与基于第一原理理论的EOS模型的预测相一致，也与使用一维辐射水码MULTI所获得的模拟结果非常吻合，后者使用SESAME数据表获取EOS和不透明度值。

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《Current Science: A Fortnightly Journal of Research》 |2003年第6期|共7页
作者
Shukla M; Pant HC; Senecha VK; Rai VN; Khare P; Verma AK; Rao RS;
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正文语种 eng
中图分类自然科学现状及发展;
关键词
Waves; Gradient; Metals;

机译：波浪;梯度;金属;

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1. Equation-of-state study of copper using laser-induced shocks near 10 Mbar pressure and revalidation of theoretical modelling [J] . Shukla M, Pant HC, Senecha VK, Current Science: A Fortnightly Journal of Research . 2003,第6期

机译：激光在10 Mbar压力附近的激振下铜的状态方程研究和理论模型的重新验证
2. Absolute Equation-of-State Measurement for Polystyrene from 25 to 60 Mbar Using a Spherically Converging Shock Wave [J] . Doeppner T., Swift D. C., Kritcher A. L., Physical review letters . 2018,第2期

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3. Precision equation-of-state measurements on National Ignition Facility ablator materials from 1 to 12 Mbar using laser-driven shock waves [J] . Barrios M. A. Journal of Applied Physics . 2012,第9期

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Equation-of-state study of copper using laser-induced shocks near 10 Mbar pressure and revalidation of theoretical modelling

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