Initiation and Propagation in Primary Explosives

Details Initiation and Propagation in Primary Explosives Initiation and Propagation in Primary Explosives

May 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993rspsa.441..359d&link_type=abstract

Proceedings: Mathematical and Physical Sciences, Volume 441, Issue 1912, pp. 359-375

Physics

Scientific paper

The initiation and propagation of deflagration and detonation in mercury fulminate, lead azide, mercuric-5-nitrotetrazole and silver-5-nitrotetrazole have been studied using various techniques. Streak and framing high-speed photography were used to observe these events directly. The main aim has been to investigate the factors which affect deflagration-to-detonation transition (DDT) and the related phenomenon of dead-pressing, which may be regarded as a failure of the DDT process at high pressed densities. These factors include the variable properties of pressed density, void structure, confinement and charge dimension and geometry, and also fixed properties (for a given explosive) such as shock and thermal sensitivities, heat of explosion and the quantity and state of the reaction products. The nature and strength of the initiating stimulus also have a major effect on the subsequent reaction.

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