Temperature profiling/FTIR spectroscopy

Figure 5. The block diagram of the circuit used for real-time filament temperature measurements in Temperature Profiling/FTIR Spectroscopy.

Figure 7. Temperature Profiling/FTIR Spectroscopy of TEFO showing the transition from induction phase decomposition to an ignition-like exotherm in ij.7 sec. Note the melting endotherm at 70-80 C.

Energetic materials are usually used as mixtures of several components. Since Temperature Profiling/FTIR Spectroscopy [93] permits several variables of the thermal decomposition process to be measured simultaneously, useful data on decomposition synergism among the components might be extracted with this technique. 

Variations on the theme of fast thermolysis/FTIR spectroscopy include temperature profiling/FTIR spectroscopy, in which the temperature changes of the condensed phase are measured simultaneously with the gas evolution fast-heat-and-hold/FTIR spectroscopy [378], in which isothermal decomposition is studied following rapid heating to a selected temperature and Simultaneous Mass and Temperature Change (SMATCH)/FTIR spectroscopy [379], which has clearly established the connection between the microscale fast thermolysis approach and steady-state combustion of the bulk material. In T-jump/FTIR spectroscopy the thermal decomposition of a material can be studied isothermally after heating at 2000°C/s [376]. 

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