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Title: Thermal conductivity of energetic materials

Journal Article · · Journal of Energetic Materials
 [1];  [1];  [1]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Here, thermal conductivity has been confirmed for a variety of energetic materials (EMs) using finite element analysis (FEA) and cookoff data from the Sandia Instrumented Thermal Ignition (SITI) experiment. Materials studied include melt-cast, pressed, and low-density explosives. The low-density explosives were either prills or powders with some experiments run at pour density (not pressed). We have viewed several of our thermal conductivities with those in the literature as well as investigated contact resistance between the confining aluminum and explosive, multidimensional heat transfer effects, and uncertainty in the thermocouple bead positions. We have determined that contact resistance is minimal in the SITI experiment, the heat transfer along the midplane is one-dimensional, and that uncertainty in the thermocouple location is greatest near the heated boundary. Our values of thermal conductivity can be used with kinetic mechanisms to accurately predict thermal profiles and energy dissipation during the cookoff of explosives.

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC04-94AL85000; NA0003525
OSTI ID:
1574453
Report Number(s):
SAND-2019-12454J; 680375
Journal Information:
Journal of Energetic Materials, Vol. 38, Issue 2; ISSN 0737-0652
Publisher:
Taylor & FrancisCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 20 works
Citation information provided by
Web of Science

References (12)

A similarity variable for estimating the heat capacity of solid organic compounds journal June 2008
The NIST Chemistry WebBook:  A Chemical Data Resource on the Internet journal September 2001
Thermal decomposition models for HMX-based plastic bonded explosives journal April 2004
PETN Ignition Experiments and Models journal April 2010
Determination of thermal diffusivity, conductivity, and energy release from the internal temperature profiles of energetic materials journal December 2014
Comparison of heat capacity of solid explosives by DSC and group contribution methods journal March 2015
Low Temperature Specific Heats. IV. The Heat Capacities of Potassium Chloride, Potassium Nitrate and Sodium Nitrate 1 journal December 1933
Small-scale cook-off experiments and models of ammonium nitrate journal October 2018
Specific heat and thermal conductivity of explosives, mixtures, and plastic-bonded explosives determined experimentally report September 1979
Ignition experiments and models of a plastic bonded explosive (PBX 9502) journal March 2014
Modeling the measured effect of a nitroplasticizer (BDNPA/F) on cookoff of a plastic bonded explosive (PBX 9501) journal November 2016
Thermal diffusivity of ammonium perchlorate. journal April 1966

Figures / Tables (22)