4.3 Article

Aluminium/tin (IV) oxide thermite composite: sensitivities and reaction propagation

期刊

JOURNAL OF ENERGETIC MATERIALS
卷 38, 期 3, 页码 295-308

出版社

TAYLOR & FRANCIS INC
DOI: 10.1080/07370652.2019.1685024

关键词

Nanothermites; SnO2; sensitivities; combustion velocity

资金

  1. French National Centre for Scientific Research (CNRS, France)
  2. French German Research Institute of Saint-Louis (ISL, Saint-Louis, France)
  3. University of Strasbourg (UNISTRA, Strasbourg, France)

向作者/读者索取更多资源

Thermites are energetic composites made of metal and oxidizer particles that react according to an exothermic reaction and release large amounts of energy. Many possible metal and oxidizer couples exist in the literature. Here, the performance of the aluminum reducing metal and tin (IV) oxide (SnO2) combination was reported as a function of the fuel/oxidizer mass ratio. The Al/SnO2 energetic composite, in stoichiometric conditions, was insensitive to impact, sensitive to friction and extremely sensitive to electrostatic discharge. The combustion velocity was determined to be close to 600 m/s. Changing the stoichiometry affected both the sensitivity thresholds to the friction test (160 N to > 360 N) and flame propagation velocity (480-588 m/s) of the Al/SnO2 composite. These results are reported for the first time.

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