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Title: Mixing rules for optical and transport properties of warm, dense matter

Abstract

The warm, dense matter (WDM) regime requires a sophisticated treatment since neither ideal gas laws or fully ionized plasma models apply. Mixtures represent the predominant form of matter throughout the universe and the ability to predict the properties of a mixture, though direct simulation or from convolution of the properties of the constituents is both a challenging prospect and an important goal. Through quantum molecular dynamics (QMD), we accurately simulate WDM and compute equations of state, transport, and optical properties of such materials, including mixtures, in a self-consistent manner from a single simulation. With the ability to directly compute the mixture properties, we are able to validate mixing rules for combining the optical and dynamical properties of Li and H separately to predict the properties of lithium hydride (LiH). We have examined two such mixing rules and extend them to morphologies beyond a simple liquid alloy. We have also studied a mixture of polyethylene and aluminum at T = 1 eV.

Authors:
 [1];  [1];  [1]
  1. Los Alamos National Laboratory
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
992190
Report Number(s):
LA-UR-09-05066; LA-UR-09-5066
TRN: US1007695
DOE Contract Number:  
AC52-06NA25396
Resource Type:
Conference
Resource Relation:
Conference: APS Shock Compression of Condensed Matter ; June 28, 2009 ; Nashville, TN
Country of Publication:
United States
Language:
English
Subject:
70; 97; ALUMINIUM; COMPRESSION; EQUATIONS OF STATE; LITHIUM HYDRIDES; MIXTURES; OPTICAL PROPERTIES; PLASMA; POLYETHYLENES; SIMULATION; TRANSPORT; UNIVERSE

Citation Formats

Kress, Joel D, Horner, Daniel A, and Collins, Lee A. Mixing rules for optical and transport properties of warm, dense matter. United States: N. p., 2009. Web.
Kress, Joel D, Horner, Daniel A, & Collins, Lee A. Mixing rules for optical and transport properties of warm, dense matter. United States.
Kress, Joel D, Horner, Daniel A, and Collins, Lee A. 2009. "Mixing rules for optical and transport properties of warm, dense matter". United States. https://www.osti.gov/servlets/purl/992190.
@article{osti_992190,
title = {Mixing rules for optical and transport properties of warm, dense matter},
author = {Kress, Joel D and Horner, Daniel A and Collins, Lee A},
abstractNote = {The warm, dense matter (WDM) regime requires a sophisticated treatment since neither ideal gas laws or fully ionized plasma models apply. Mixtures represent the predominant form of matter throughout the universe and the ability to predict the properties of a mixture, though direct simulation or from convolution of the properties of the constituents is both a challenging prospect and an important goal. Through quantum molecular dynamics (QMD), we accurately simulate WDM and compute equations of state, transport, and optical properties of such materials, including mixtures, in a self-consistent manner from a single simulation. With the ability to directly compute the mixture properties, we are able to validate mixing rules for combining the optical and dynamical properties of Li and H separately to predict the properties of lithium hydride (LiH). We have examined two such mixing rules and extend them to morphologies beyond a simple liquid alloy. We have also studied a mixture of polyethylene and aluminum at T = 1 eV.},
doi = {},
url = {https://www.osti.gov/biblio/992190}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {1}
}

Conference:
Other availability
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