Thermogravimetric Decomposition Studies of Energetic Materials
Abstract
The funds for this equipment proposal were used to upgrade a species diagnostic system used in thermolysis of energetic materials. Specifically, the funds were used to purchase a combined thermogravimetric analyzer (TGA), differential scanning calorimeter (DSC) and differential thermal analyzer (DTA). The evolved gases from the TGA are sent via a heated tube to an interface attached to an FTIR spectrometer. As such, the species evolved from the thermolysis can be associated with the mass-loss profile. The system is used in two existing projects. In the first ARO-sponsored project, it will be used to identify species from mixtures of RDX with a high-nitrogen compound as well as HMX and mixtures of HMX with a high-nitrogen compound. In the second project funded by AFOSR, the diagnostic system is used to identify species evolution of energetic materials containing catalytic nanoparticles. These species measurements provide guidance to a quantum mechanics investigation, in which the transition states and reaction pathways are sought. The overall objective for these combined experimental studies and quantum mechanics investigations is to identify the relevant reaction channels at low and high heating rates and to develop reaction mechanisms, which can be used in computational fluid dynamic studies of ignition and combustion of solid and liquid propellants used in propulsive devices.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 18, 2018
- Accession Number
- AD1068706
Entities
People
- Stefan T. Thynell
Organizations
- Pennsylvania State University