Detection system for real-time, experimental characterization/investigation of hot-spots in shocked heterogeneous materials
Abstract
Explosives and propellants consist of energetic crystals embedded in polymeric binders. Thesematerials can be initiated through a variety of stimuli, including thermal, mechanical, and electricalmeans, with the non-thermal stimuli believed to generate heat first which then causes thermallyinduced chemical decomposition. Optimizing the performance of energetic materials for specificapplications has to be balanced against safety and reliability considerations. This process requiresan improved fundamental understanding of chemical decomposition or initiation and relatedtemperature changes.The focus of this project is on developing temperature sensors and then to use these sensors tooptically measure temperature in real time in shocked heterogeneous materials. The temperaturesensors are based on 2-color fluorescence thermometry (2CFT). In 2CFT the fluorescence intensityratio at two emission wavelengths is used to determine the temperature. This approach has beensuccessfully demonstrated using lanthanide ions such as Dy3+ and Sm3+.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Apr 09, 2018
- Source ID
- FA95501710381
Entities
People
- Hergen Eilers
Organizations
- Air Force Office of Scientific Research
- United States Air Force
- Washington State University