Direct Observation of the {alpha}-{epsilon} Transition in Shocked Single Crystal Iron

Journal Article · Fri Jul 28 00:00:00 EDT 2006 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2263308· OSTI ID:20875721

Kalantar, D H; Collins, G W; Colvin, J D; Eggert, J H; Hawreliak, J; Lorenzana, H E; Stoelken, J S ^[1]; Davies, H M ^[2]; Meyers, M A; Schneider, M S ^[3]; Rosolankova, K; Sheppard, J; Wark, J S ^[4]

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1. Lawrence Livermore National Laboratory, Livermore, CA 94550 (United States)
2. AWE Aldermaston, Reading, RG7 4PR (United Kingdom)
3. University of California at San Diego, La Jolla, CA 92093 (United States)
4. Department of Physics, Clarendon Laboratory, University of Oxford, Oxford, OX1 3PU (United Kingdom)

In-situ x-ray diffraction was used to study the response of single crystal iron under shock conditions. Measurements of the response of [001] iron showed a uniaxial compression of the initially bcc lattice along the shock direction by up to 6% at 13 GPa. Above this pressure, the lattice responded with a further collapse of the lattice by 15-18% and a transformation to the hcp structure. The in-situ measurements are discussed and results summarized.

• OSTI ID: 20875721
• Journal Information: AIP Conference Proceedings, Vol. 845, Issue 1; Conference: American Physical Society Topical Group conference on shock compression of condensed matter, Baltimore, MD (United States), 31 Jul - 5 Aug 2005; Other Information: DOI: 10.1063/1.2263308; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BCC LATTICES
COMPRESSION
HCP LATTICES
IRON
MONOCRYSTALS
PHASE TRANSFORMATIONS
PRESSURE DEPENDENCE
PRESSURE RANGE GIGA PA
SHOCK WAVES
SOLIDS
X-RAY DIFFRACTION