Spatially and temporally resolved temperature and shock-speed measurements behind a laser-induced blast wave of energetic nanoparticles Academic Article uri icon

abstract

  • Spatially and temporally resolved temperature measurements behind an expanding blast wave are made using picosecond (ps) N2 coherent anti-Stokes Raman scattering (CARS) following laser flash heating of mixtures containing aluminum nanoparticles embedded in ammonium-nitrate oxidant. Production-front ps-CARS temperatures as high as 3600 180 K-obtained for 50-nm-diameter commercially produced aluminum-nanoparticle samples-are observed. Time-resolved shadowgraph images of the evolving blast waves are also obtained to determine the shock-wave position and corresponding velocity. These results are compared with near-field blast-wave theory to extract relative rates of energy release for various particle diameters and passivating-layer compositions. 2013 AIP Publishing LLC.

published proceedings

  • Journal of Applied Physics

author list (cited authors)

  • Roy, S., Jiang, N., Stauffer, H. U., Schmidt, J. B., Kulatilaka, W. D., Meyer, T. R., Bunker, C. E., & Gord, J. R.

citation count

  • 25

complete list of authors

  • Roy, Sukesh||Jiang, Naibo||Stauffer, Hans U||Schmidt, Jacob B||Kulatilaka, Waruna D||Meyer, Terrence R||Bunker, Christopher E||Gord, James R

publication date

  • May 2013