6 February 2009 Ultrafast high strain rate acoustic wave measurements at high static pressure in a diamond anvil cell
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Abstract
We describe experiments demonstrating the generation of ultrafast, high strain rate acoustic waves in a precompressed transparent medium at static pressure up to 24 GPa. We also observe shock waves in precompressed aluminum with transient pressures above 40 GPa under precompression. Using ultrafast interferometry, we determine parameters such as the shock pressure and acoustic wave velocity using multiple and single shot methods. These methods form the basis for material experiments under extreme conditions which are challenging to access using other techniques.
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Michael R. Armstrong, Jonathan C. Crowhurst, Evan J. Reed, Joseph M. Zaug, "Ultrafast high strain rate acoustic wave measurements at high static pressure in a diamond anvil cell", Proc. SPIE 7214, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIII, 721407 (6 February 2009); doi: 10.1117/12.809363; https://doi.org/10.1117/12.809363
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