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Proceedings Paper

Laser initiation thresholds of a 'green' aluminum/molybdenum-trioxide metastable intermolecular composite and other pyrotechnics
Author(s): Stephen L. Howard; Jeffrey B. Morris; Richard A. Beyer; Scott J. Hamlin; James Martin; Gregory C. Burke; Thomas Doris
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Paper Abstract

Metastable intermolecular composites (MIC) consisting of nanometer-scale aluminum and molybdenum trioxide have been proposed as fast initiators. A compound of this class of material was evaluated as a potential environmentally friendly replacement pyrotechnic material for lead styphnate for use in the primer of the M230 medium-caliber automatic cannon. In addition to removing the lead hazard, laser ignition would also reduce or remove certain hazards due to electrostatic or radio frequency radiation. This study was conducted with both a flashlamp-pumped Nd+3:YAG laser and a fiber-coupled diode laser. The measured threshold ignition energies of the MIC and two other inorganic pyrotechnic compounds are presented. The low ignition threshold, advances in diode laser technology, and compact size of the diode laser indicated that laser diode technology could be an ideal candidate ignition source for the M230 cannon. The candidate pyrotechnic compounds were also evaluated for suitability in laser initiation via measurement of time-to-first-light. This metric provided a measurement of the potential for achievement of the necessary action time required for proper cannon operation.

Paper Details

Date Published: 19 August 2005
PDF: 10 pages
Proc. SPIE 5871, Optical Technologies for Arming, Safing, Fuzing, and Firing, 58710B (19 August 2005); doi: 10.1117/12.614508
Show Author Affiliations
Stephen L. Howard, U.S. Army Research Lab. (United States)
Jeffrey B. Morris, U.S. Army Research Lab. (United States)
Richard A. Beyer, U.S. Army Research Lab. (United States)
Scott J. Hamlin, Megawatt Lasers (United States)
James Martin, Megawatt Lasers (United States)
Gregory C. Burke, Aurora Optics (United States)
Thomas Doris, Applied Ordnance Technology (United States)


Published in SPIE Proceedings Vol. 5871:
Optical Technologies for Arming, Safing, Fuzing, and Firing
William J. Thomes; Fred M. Dickey, Editor(s)

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