Published March 5, 2004
| Version v1
Journal article
Extended X-ray absorption fine structure measurements of laser-shocked V and Ti and crystal phase transformation in Ti
Creators
- 1. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
- 2. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
- 3. Department of Physics, University of Washington, Seattle, Washington 98195 (United States)
- 4. Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623 (United States)
Description
Extended x-ray absorption fine structure (EXAFS), using a laser-imploded target as a source, can yield the properties of laser-shocked metals on a nanosecond time scale. EXAFS measurements of vanadium shocked to ∼0.4 Mbar yield the compression and temperature in good agreement with hydrodynamic simulations and shock-speed measurements. In laser-shocked titanium at the same pressure, the EXAPS modulation damping is much higher than is warranted by the predicted temperature increase. This is shown to be due to the α-Ti to ω-Ti crystal phase transformation, known to occur below ∼0.1 Mbar for slower shock waves
Additional details
Identifiers
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 92
- Journal Issue
- 9
- Journal Page Range
- p. 095504-095504.4
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 36020901
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ABSORPTION SPECTRA; COMPRESSION; CRYSTAL-PHASE TRANSFORMATIONS; DAMPING; FINE STRUCTURE; MODULATION; SHOCK WAVES; SIMULATION; TITANIUM; VANADIUM; X-RAY DIFFRACTION
- Descriptors DEC
- COHERENT SCATTERING; DIFFRACTION; ELEMENTS; METALS; PHASE TRANSFORMATIONS; SCATTERING; SPECTRA; TRANSITION ELEMENTS
Optional Information
- Notes
- (c) 2004 The American Physical Society