每年出版 6 期
ISSN 打印: 2150-766X
ISSN 在线: 2150-7678
Indexed in
SYNTHESIS OF NANO-NICKEL-COATED MICRO-ALUMINUM AND THERMAL REACTIVITY OF ALUMINUM/NICKELSTANNIC-OXIDE THERMITE
摘要
The displacement method was employed to modify the surface of micron Al on which a layer of Ni nanoparticles were coated. NH4F acted as a key that enabled the displacement reaction to occurr. Al/Ni composites (with different coating percentage) were mixed with SnO2 and the mixtures were used as thermites. The thermite reaction of Al/Ni−SnO2 was investigated. For reactions between Al/Ni and SnO2, the onset temperature was lowered and the reaction heat remarkably increased compared with the Al−SnO2 reaction. Thermites Al−SnO2 and Al/Ni−SnO2 were heated simultaneity to 1020° C. The heated residues were investigated by scanning electron microscope, energy-dispersive spectroscopy, and x-ray diffraction analyses. Residue of raw Al manifested hollow shells composed of Al, α-Al2O3, and [θ ]-Al2O3; residue of Al/Ni exhibited broken fragments and bulk sinters consisting of α-Al2O3, AlN, [θ ]-Al2O3, and faint NiO.
-
Gibot Pierre, Goetz Virginie, Aluminium/tin (IV) oxide thermite composite: sensitivities and reaction propagation, Journal of Energetic Materials, 38, 3, 2020. Crossref
-
Shaw William L., Dlott Dana D., Williams Rayon A., Dreizin Edward L., Ignition of Nanocomposite Thermites by Electric Spark and Shock Wave, Propellants, Explosives, Pyrotechnics, 39, 3, 2014. Crossref