Dislocations Arrangements in Shock-Recovered Al Single Crystals from White Beam Diffraction

Conference · Sat Dec 31 23:00:00 EST 2005

OSTI ID:1003553

Barabash, Rozaliya ^[1]; Ice, Gene E ^[1]; Liu, W. ^[2]; Belak, J. ^[3]; Kumar, M. ^[3]

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1. ORNL
2. Argonne National Laboratory (ANL)
3. Lawrence Livermore National Laboratory (LLNL)

Strong shock waves result in the transition from elastic to plastic compression. Regions with voids and geometrically necessary dislocations are formed causing local lattice curvature. A spatially resolved diffraction method with a sub micrometer-diameter beam and 3D differential aperture technique is applied to understand the arrangements of voids, geometrically necessary dislocations and the elastic strain gradient distribution in samples of Al (123) single crystal shocked to incipient spallation fracture.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1003553
• Country of Publication: United States
• Language: English

Related Subjects

dislocations
shock
synchrotron radiation