Isentropic compression experiments on dynamic solidification in tin.

Conference · Tue Jul 01 00:00:00 EDT 2003

OSTI ID:1003915

Hayes, Dennis Brewster; Davis, Jean-Paul

Isentropic compression experiments were performed on molten tin (initial temperature 500-600 K), using the Sandia Z Accelerator to generate magnetically driven, planar ramp waves compressing the tin across the equilibrium liquid-solid phase boundary. Velocity interferometry measured time-resolved wave profiles at the tin/window interface. The experiments exhibit a departure from expected liquid response, time-dependent behavior above 8 GPa, and, at higher pressure, reduced wave speed relative to calculations using a nonequilibrium phase-mixture model. These phenomena may be due to a nonequilibrium solidification process, but verification of this conjecture will require further work.

• Research Organization: Sandia National Laboratories
• Sponsoring Organization: USDOE
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 1003915
• Report Number(s): SAND2003-2903C
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
COMPRESSION
INTERFEROMETRY
SOLIDIFICATION
VELOCITY
VERIFICATION