Electrostatic discharge sensitivity and electrical conductivity of composite energetic materials

Autor: Gautham Ramachandran, Daniel Prentice, Michael A. Daniels, Tim Dallas, Michelle L. Pantoya, Chelsea Weir
Rok vydání: 2013
Předmět:
Zdroj: Journal of Electrostatics. 71:77-83
ISSN: 0304-3886
DOI: 10.1016/j.elstat.2012.10.002
Popis: Composite energetic material response to electrical stimuli was investigated and a correlation between electrical conductivity and ignition sensitivity was examined. The composites consisted of micrometer particle aluminum combined with another metal, metal oxide, or fluoropolymer. Of the nine tested mixtures, aluminum (Al) with copper oxide (CuO) was the only mixture to ignite by electrostatic discharge. Under the loose powder conditions of these experiments, the Al–CuO minimum ignition energy (MIE) is 25 mJ and exhibited an electrical conductivity two orders of magnitude higher than the next composite. This study showed a similar trend in MIE for ignition triggered by a discharged spark compared with a thermal hot wire source.
Databáze: OpenAIRE