High-speed photography and spectroscopy in determining the nature, number, and evolution of hot spots in energetic materials

William G. Proud; Edward J. W. Crossland; John E. Field

doi:10.1117/12.516944

1 August 2003 High-speed photography and spectroscopy in determining the nature, number, and evolution of hot spots in energetic materials

William G. Proud, Edward J. W. Crossland, John E. Field

Author Affiliations +

Proceedings Volume 4948, 25th International Congress on High-Speed Photography and Photonics; (2003) https://doi.org/10.1117/12.516944
Event: 25th international Congress on High-Speed photography and Photonics, 2002, Beaune, France

Abstract

Hot-spot formation is regarded as the principal phenomenon by which energetic materials start to react, deflagrate and, in some cases, detonate. The principal mechanisms by which these localized regions of high-temperature form have been identified and widely studied; mechanisms such as friction, pore collapse and jetting have been highlighted. High-speed imaging techniques have been applied to beds of ammonium nitrate under high velocity impact in order to evaluate the contribution of each mechanism to the ignition of this material.

Citation Download Citation

William G. Proud, Edward J. W. Crossland, and John E. Field "High-speed photography and spectroscopy in determining the nature, number, and evolution of hot spots in energetic materials", Proc. SPIE 4948, 25th International Congress on High-Speed Photography and Photonics, (1 August 2003); https://doi.org/10.1117/12.516944

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