Aluminum Equation-of-State Data in the Warm Dense Matter Regime

Abstract

Isochore measurements were performed in the warm dense matter regime. Pressure and internal energy variation of aluminum plasma (density 0.1 g/cm(3) and 0.3 g/cm(3)) are measured using a homogeneous and thermally equilibrated media produced inside an isochoric plasma closed vessel in the internal energy range 20-50 MJ/kg. These data are compared to detailed calculations obtained from ab initio quantum molecular dynamics, average atom model within the framework of the density functional theory, and standard theories. A dispersion between theoretical isochore equation of state is found in the studied experimental thermodynamic regime.

Vapor–liquid phase coexistence curves for Morse fluids

“…Simulation Literature of Al extrapolated from experimental data is observed from 5700 to 12,100 K [17,18]. The recent study by Bhatt et al using the Gibbs ensemble Monte Carlo technique with the complex embedded-atom potential (called NP-B potential) reveals a critical temperature of 6299 K [19].…”

Current status of microplasma research

“…Fig. 1 Characteristic area of microplasmas in a plane of spatial size d and plasma density n e 'exotic plasmas' generated under special situations in solid matter generated by, e.g., femtosecond laser irradiation [5]. As an example to show the characteristics of this region of microplasmas, let us assume a plasma of a density of 10 16 cm −3 .…”

“…The measurement was done for analyzing the dynamic behavior of excited Xe atoms leading to the VUV emissions for the excitation of RGB phosphors. In the experiment, the wavelength of a diode laser was tuned to the absorption line from the metastable Xe * (1s 5 ) state in Paschen notation or resonance Xe * (1s 4 ) state to the higher lying levels of Xe atoms in the near IR region. A two-dimensional (2D) spatio-temporal information of the absolute density of Xe * atoms was acquired by mapping the incident laser beam position onto the whole area of a cell.…”

M-L band x-rays (3–3.5 KeV) from palladium coated targets for isochoric radiative heating of thin foil samples

“…Typically taken as having a solid density (1-10g/cc) and a moderate temperature (1-100eV), the properties of WDM are of great interest to many, especially those concerned with the structure of matter in giant planets, where WDM conditions are thought to be common [6]. There are many aspects of WDM that can be investigated experimentally, such as the equation of state [7], the electrical and thermal conductivity, and the microscopic structure [8]. Unfortunately, finding a reliable method of heating a target sample homogenously to a WDM state, ready for probing, is not trivial.…”