Diode laser ignition of high explosives and pyrotechnics

Conference · Fri Jan 01 04:00:00 EST 1988

OSTI ID:7197548

Kunz, S C; Salas, F J

Thermal ignition of the explosive CP (2-(5-cyanotetrazolato)pentaamine cobalt (III) perchlorate) and of the pyrotechnic Ti/KCl0/sub 4/ has been achieved using a (GaAl)As diode laser that emitted 1 watt of optical power from the end of a 100/minus/..mu..m core fiber optic to which it was coupled. The wavelength of the emitted light was near 820 nm. Approximate ignition thresholds were obtained for pulse widths of between 2 and 10 ms. For a 10/minus/ms pulse width, pure CP required /approximately/6.7 mJ of energy for ignition whereas pure Ti/KC10/sub 4/ required only /approximately/3 mJ. Dopants such as carbon black, graphite and a laser dye were added in small concentrations to enhance light absorption and thereby reduce the ignition theshold. Their effects as well as those of powder density, particle size and spot size of the incident light on ignition threshold are described. 9 refs., 7 figs., 3 tabs.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 7197548
• Report Number(s): SAND-87-3032C; CONF-880750-4; ON: DE88008771
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300 -- Engineering-- Lasers-- (-1989)
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450100* -- Military Technology
Weaponry
& National Defense-- Chemical Explosions & Explosives
CHEMICAL EXPLOSIVES
DATA
DETONATIONS
EXPERIMENTAL DATA
EXPLOSIVES
IGNITION SYSTEMS
INFORMATION
LASERS
NUMERICAL DATA
PERFORMANCE TESTING
SOLID STATE LASERS
TESTING