Condensed-phase kinetic rates of rdx from confined rapid thermolysis/ftm spectroscopy

E. S. Kirn, S. T. Thynellt

Research output: Contribution to conferencePaper

Abstract

A study of the condensed-phase decomposition of RDX was performed using the confined rapid thermolysis (CRT)/FTIR spectroscopy technique. In this experiment, about 2 mg of RDX was heated at rates in excess of 1500 K/s to four different set temperatures, 533, 553, 573, 593 K. Gas evolutions profiles of RDX decomposition products at each set temperature were obtained from FTIR spectroscopy. The major gaseous decomposition products of RDX observed in the CRT/FTIR spectroscopy measurement were NO2, N2O, CH20, N0, HCN, CO, and CO2over the temperature range studied. NO2 always evolved first among the decomposition products. However, evolution rates of N2O and CH2O became faster as the evolution rate of NO2 started to decrease later in the event. In general, HCN evolved at relatively slow rates over the range of temperatures studied. Using the measured temporal species concentration profiles, a global decomposition mechanism for RDX in the condensed phase was established. The kinetic-rate parameters describing the condensed-phase decomposition of RDX were also obtained using an inverse-based iterative fitting technique.

Original languageEnglish (US)
StatePublished - Jan 1 1998
Event34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, 1998 - Cleveland, United States
Duration: Jul 13 1998Jul 15 1998

Other

Other34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, 1998
CountryUnited States
CityCleveland
Period7/13/987/15/98

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Control and Systems Engineering
  • Aerospace Engineering

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    Kirn, E. S., & Thynellt, S. T. (1998). Condensed-phase kinetic rates of rdx from confined rapid thermolysis/ftm spectroscopy. Paper presented at 34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, 1998, Cleveland, United States.