Experimental measurement of the principal isentrope for aluminum 6061-T6 to 240 GPa.

Journal Article · Tue Feb 01 00:00:00 EST 2005 · Proposed for publication in Physical Review Letters.

OSTI ID:990431

Davis, Jean-Paul

Using a magnetic pressure drive, an absolute measurement of stress and density along the principal compression isentrope is obtained for solid aluminum to 240 GPa. Reduction of the free-surface velocity data relies on a backward integration technique, with approximate accounting for unknown systematic errors in experimental timing. Maximum experimental uncertainties are {+-}4.7% in stress and {+-}1.4% in density, small enough to distinguish between different equation-of-state (EOS) models. The result agrees well with a tabular EOS that uses an empirical universal zero-temperature isotherm.

• Research Organization: Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 990431
• Report Number(s): SAND2005-0729J; TRN: US201020%%375
• Journal Information: Proposed for publication in Physical Review Letters., Journal Name: Proposed for publication in Physical Review Letters.
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALUMINIUM
COMPRESSION
ISOTHERMS
VELOCITY