Limited Range Sesame EOS for Ta

Technical Report · Thu Mar 30 00:00:00 EDT 2017

DOI:https://doi.org/10.2172/1351253· OSTI ID:1351253

Greeff, Carl William  ^[1]; Crockett, Scott  ^[1]; Rudin, Sven Peter  ^[1]; Burakovsky, Leonid ^[1]

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1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

A new Sesame EOS table for Ta has been released for testing. It is a limited range table covering T ≤ 26, 000 K and ρ ≤ 37.53 g/cc. The EOS is based on earlier analysis using DFT phonon calculations to infer the cold pressure from the Hugoniot. The cold curve has been extended into compression using new DFT calculations. The present EOS covers expansion into the gas phase. It is a multi-phase EOS with distinct liquid and solid phases. A cold shear modulus table (431) is included. This is based on an analytic interpolation of DFT calculations.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• DOE Contract Number: AC52-06NA25396
• OSTI ID: 1351253
• Report Number(s): LA-UR-17-22600
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE