Temperature Measurements in Shocked Plastic-Bonded Explosives using Raman Thermometry

A lack of experimental temperature measurements has hindered our understanding of how shock energy is localized and partitioned between temperature rise and mechanical deformation in plastic-bonded explosives (PBXs). We previously presented a methodology for collecting unreacted shock equation of state (EoS) temperatures by coupling Stokes/anti-stokes Raman spectroscopy, or Raman thermometry (RT), to shock drive experiments. In the present work, we coupled RT to tabletop, laser-driven flyer plate experiments and collected unreacted EoS temperatures from micron-scale PBX samples. Recent temperature measurements on PBX 9501 and PBX 9502 will be presented and compared to theoretical predictions. We will also give a brief summary of current work on 1) collecting spatially-resolved temperatures with RT and, 2) coupling simultaneous pyrometry measurements which will both serve the purpose of confining thermomechanical and reactive burn models.