TCi’s Application in the Thermal Conductivity Characterization of Explosives
Testing the thermal conductivity of most energetic materials is a challenge with more traditional techniques, as the required large volumes of material pose undesirable safety risks or the necessary sample geometries are impractical. This often leads to estimation of thermal conductivity in predictive models rather than actual measurement. The dependence of thermal conductivity of a material undergoing an exothermic reaction on local temperature has a significant effect on the critical conditions for thermal ignition.
The TCi Thermal Conductivity Analyzer's modified transient plane source technique (MTPS), developed in collaboration with the US Navy, offers the unique capability to measure the thermal conductivity of an energetic material directly as an alternative to the book values that are frequently substituted in the computational models. The TCi requires minimal volumes of material, utilizes extremely short testing time parameters (0.8 second) and employs a low energy measurement pulse that makes it the optimal solution in the characterization of energetics.
Recent published work will be reviewed in how the C-Therm TCi Thermal Conductivity Analyzer is used at the US Navy’s Naval Surface Warfare Center Indian Head (NAVSEA) Division and the Canadian Explosives Research Lab (CERL).
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