Studies in shocked nitromethane through high dynamic range spectroscopy

Mithun Bhowmick, Erin J. Nissen, Sergey M. Matveev, Dana D. Dlott

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We have developed a tabletop apparatus to study shocked liquid explosives. We use 0-6 km s-1 laser-launched flyer plates and an array of liquid microcells that are probed with high-speed Doppler velocimetry and emission spectroscopy. Here we studied nitromethane (NM) and each cell contained about 2 mg of explosive. We showed there was a reaction threshold at a flyer plate velocity of 3.2 km s-1 (P = 15 GPa). The reaction began immediately (within 3 ns) after the shock entered the NM, which reacted at a temperature of 3700 K (±280 K). A series of careful tests showed the incoming shock was initially planar and steadily driven for several ns. The shock and the explosive emission were highly reproducible and experiments could be run at a rate of 50 shocks per day.

Original languageEnglish (US)
Title of host publicationShock Compression of Condensed Matter - 2017
Subtitle of host publicationProceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter
EditorsMarcus D. Knudson, Eric N. Brown, Ricky Chau, Timothy C. Germann, J. Matthew D. Lane, Jon H. Eggert
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735416932
DOIs
StatePublished - Jul 3 2018
Event20th Biennial American Physical Society Conference on Shock Compression of Condensed Matter, SCCM 2017 - St. Louis, United States
Duration: Jul 9 2017Jul 14 2017

Publication series

NameAIP Conference Proceedings
Volume1979
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other20th Biennial American Physical Society Conference on Shock Compression of Condensed Matter, SCCM 2017
Country/TerritoryUnited States
CitySt. Louis
Period7/9/177/14/17

ASJC Scopus subject areas

  • General Physics and Astronomy

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