Static and dynamic high pressure experiments on cerium
- Los Alamos National Laboratory
- NST, STL
- UNIV OF NEVADA
There is a scientific need to obtain dynamic data to develop and validate multi phase equation-of-state (EOS) models for metals. Experiments are needed to examine the relevant pure phases, to locate phase boundaries and the associated transition kinetics, and other material properties such as strength. Cerium is an ideal material for such work because it exhibits a complex multiphase diagram at relatively moderate pressures readily accessible using standard shock wave methods. In the current work, shock wave (dynamic) and diamond anvil cell (static) experiments were performed to examine the high pressure, low temperature region of the phase diagram to obtain EOS data and to search for the {alpha}-{var_epsilon} boundary. Past work examining the shock-melt transition and the low-pressure {gamma}-{alpha} transition will be presented in brief followed by details of recent results obtained from DAC and double-shock experiments.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC52-06NA25396
- OSTI ID:
- 1049951
- Report Number(s):
- LA-UR-11-00509; LA-UR-11-509; TRN: US201218%%373
- Resource Relation:
- Conference: Dynamic phenomena under extremes ; January 27, 2011 ; Austin, Tx
- Country of Publication:
- United States
- Language:
- English
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