期刊
CENTRAL EUROPEAN JOURNAL OF ENERGETIC MATERIALS
卷 14, 期 1, 页码 105-119出版社
INST INDUSTRIAL ORGANIC CHEMISTRY
DOI: 10.22211/cejem/67456
关键词
nanothermite; electrostatic discharge sensitivity; resonant acoustic mixing; nano aluminium
资金
- Royal Military College of Canada
The sensitivity of nanothermites to electrostatic discharge (ESD) has been noted by many authors. In the present work, nanothermites have been prepared using aluminium fuels with oxide (O-Al), palmitic acid (L-Al) and Viton (V-Al) passivation and CuO, Fe2O3 and MoO3 oxidants, as well as binary oxidant mixtures. Fuel- and oxidant-based ESD sensitivity trends of O-Al approximate to L-Al >> V-Al and MoO3 >> CuO approximate to Fe2O3 were observed with binary oxidants affording intermediate sensitivities. In the majority of cases, with the exception of high proportions of MoO3 oxidant, nanothermites containing V-Al fuel were the least sensitive to ESD at > 0.156 J. Resistivity measurements have been made for the fuels and oxidants and follow the trends V-Al >> O-Al approximate to L-Al and MoO3 >> Fe2O3 > CuO. V-Al resistivity of ca. 10(11) vertical bar Omega.cm exceeds that of the oxidants studied. An ESD sensitivity trend, based on a reduced proportion of spark current carried by the aluminium fuel, is proposed and was consistent with the observed ESD and resistivity data.
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