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Title: Controlling the Electrostatic Discharge Ignition Sensitivity of Composite Energetic Materials Using Carbon Nanotube Additives

Powder energetic materials are highly sensitive to electrostatic discharge (ESD) ignition. This study shows that small concentrations of carbon nanotubes (CNT) added to the highly reactive mixture of aluminum and copper oxide (Al + CuO) significantly reduces ESD ignition sensitivity. CNT act as a conduit for electric energy, bypassing energy buildup and desensitizing the mixture to ESD ignition. The lowest CNT concentration needed to desensitize ignition is 3.8 vol.% corresponding to percolation corresponding to an electrical conductivity of 0.04 S/cm. Conversely, added CNT increased Al + CuO thermal ignition sensitivity to a hot wire igniter.
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Publication Date:
OSTI Identifier:
Report Number(s):
Journal ID: ISSN 0304-3886
DOE Contract Number:
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Electrostatics; Journal Volume: 72; Journal Issue: 5
Research Org:
Idaho National Laboratory (INL)
Sponsoring Org:
Country of Publication:
United States
36 MATERIALS SCIENCE; ALUMINIUM; CARBON NANOTUBES; IGNITION aluminum; carbon nanotube; electrostatic discharge; energetic materials; ESD; ignition; thermite