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Energy Express

  • Editor: Christian Seassal
  • Vol. 22, Iss. S2 — Mar. 10, 2014
  • pp: A268–A275

Spatio-temporal dynamics behind the shock front from compacted metal nanopowders

Ch. Leela, P. Venkateshwarlu, Raja V. Singh, Pankaj Verma, and P. Prem Kiran  »View Author Affiliations

Optics Express, Vol. 22, Issue S2, pp. A268-A275 (2014)

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Laser ablated shock waves from compacted metal nanoenergetic powders of Aluminum (Al), Nickel coated Aluminum (Ni-Al) was characterized using shadowgraphy technique and compared with that from Boron Potassium Nitrate (BKN), Ammonium Perchlorate (AP) and Potassium Bromide (KBr) powders. Ablation is created by focused second harmonic (532 nm, 7 ns) of Nd:YAG laser. Time resolved shadowgraphs of propagating shock front and contact front revealed dynamics and the precise time of energy release of materials under extreme ablative pressures. Among the different compacted materials studied, Al nanopowders have maximum shock velocity and pressure behind the shock front compared to others.

© 2014 Optical Society of America

OCIS Codes
(110.2970) Imaging systems : Image detection systems
(160.0160) Materials : Materials
(100.0118) Image processing : Imaging ultrafast phenomena

ToC Category:
Energy Nanotechnology

Original Manuscript: December 3, 2013
Revised Manuscript: January 13, 2014
Manuscript Accepted: January 14, 2014
Published: January 24, 2014

Virtual Issues
Renewable Energy and the Environment (2014) Optics Express

Ch. Leela, P. Venkateshwarlu, Raja V. Singh, Pankaj Verma, and P. Prem Kiran, "Spatio-temporal dynamics behind the shock front from compacted metal nanopowders," Opt. Express 22, A268-A275 (2014)

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