Production and sensitivity evaluation of nanocrystalline RDX-based explosive compositions

Victor Stepanov, Venant Anglade, Wendy A. Balas Hummers, Andrey V. Bezmelnitsyn, Lev N. Krasnoperov

Research output: Contribution to journalArticlepeer-review

56 Scopus citations

Abstract

The initiation sensitivity of cyclotrimethylenetrinitramine (RDX) was investigated as a function of crystal size. For this study, RDX powders with mean crystal sizes of ca. 200 and 500 nm were prepared by rapid expansion of supercritical solutions (RESS) with carbon dioxide as the solvent. Initiation sensitivity testing to impact, sustained shock, and electrostatic discharge stimuli was performed on uncoated as well as wax-coated specimens. The test data revealed that in a direct comparison to coarser grades the nanocrystalline RDX-based samples were substantially less sensitive to shock and impact stimuli. Furthermore, the 500 nm RDX-based specimens exhibited the lowest sensitivity values, an indication that minima in shock and impact sensitivities with respect to crystal size exist.

Original languageEnglish (US)
Pages (from-to)240-246
Number of pages7
JournalPropellants, Explosives, Pyrotechnics
Volume36
Issue number3
DOIs
StatePublished - Jun 2011

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

Keywords

  • Initiation
  • Nanocrystalline
  • RDX
  • RESS
  • Sensitivity

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