Precise ultrahigh-pressure experiments
A nuclear-explosive-generated shock has been used to obtain Hugoniot data at pressures corresponding to threefold compressions. The shock passed through a 12-mm-thick by 180-mm-dia molybdenum base plates and into 13 samples; 80 electrical-contact pins were used to determine shock velocities with uncertainties of 1.4 to 2.6%. The measured molybdenum shock velocity of 30.60 km/s corresponds to a pressure of 6.43 TPa, based on its SESAME equation of state. Impedance-matching analyses provided Hugoniot data in pressure (TPa)-particle velocity (km/s) coordinates (P, u) for the following materials; Al(2.93, 27.57), 19%-porosity Mo(4.65, 19.99), C(2.64, 28.38), LiH(1.225, 35.52), Cu(6.06, 21.15), Fe(5.71, 21.73), and crystalline quartz (2.75, 26.76). These results indicate the need for improved theoretical calculations for some materials.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 5783316
- Report Number(s):
- LA-UR-83-2081; CONF-830719-41; ON: DE83015247
- Resource Relation:
- Conference: American Physical Society meeting on shock waves in condensed media, Santa Fe, NM, USA, 18 Jul 1983; Other Information: Portions are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ALUMINIUM
EQUATIONS OF STATE
CARBON
COPPER
IRON
LITHIUM HYDRIDES
MOLYBDENUM
QUARTZ
COMPRESSION
NUCLEAR EXPLOSIONS
SHOCK WAVES
VELOCITY
ALKALI METAL COMPOUNDS
CHALCOGENIDES
ELEMENTS
EQUATIONS
EXPLOSIONS
HYDRIDES
HYDROGEN COMPOUNDS
LITHIUM COMPOUNDS
METALS
MINERALS
NONMETALS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
SILICON COMPOUNDS
SILICON OXIDES
TRANSITION ELEMENTS
360000* - Materials