Calculated Hugoniot Curves of Porous Metal: Copper, Nickel, and Molybdenum
Abstract
Calculated Hugoniots curves of porous metal Cu, Ni, and Mo are reported using the newly developed classical mean-field potential approach where both the cold and thermal parts of the Helmholtz free-energy are derived entirely from the 0-K total energies and electronic density of states calculated with the full-potential linearized augmented plane wave method within the generalized gradient approximation. Our approach permits efficient computation and invokes no empirical parameters. The calculation reproduces experimental data both at low and high porosities.
- Publication:
-
Shock Compression of Condensed Matter
- Pub Date:
- July 2002
- DOI:
- 10.1063/1.1483484
- Bibcode:
- 2002AIPC..620...67W
- Keywords:
-
- Copper;
- Electron States;
- Equations Of State;
- Free Energy;
- Molybdenum;
- Nickel;
- Plane Waves;
- Porous Materials;
- Thermal Energy;
- 64.30.+t;
- 81.05.Rm;
- 81.05.Bx;
- 62.50.+p;
- Solid-State Physics;
- Equations of state of specific substances;
- Porous materials;
- granular materials;
- Metals semimetals and alloys;
- High-pressure and shock wave effects in solids and liquids