INVESTIGATING THE KINETICS OF NITRIFICATION AND CRYSTALLIZATION OF ENERGETIC MATERIALS USING FLASH DIFFERENTIAL SCANNING CALORIMETRY
Abstract
The proposal aims to gain an in-depth knowledge of crystal kinetics and develop new processing strategies to make stable forms of amorphous energetic materials. The anticipated results will facilitate the development of stable amorphous energetic materials attainment of desirable properties that are not available in such material s crystalline form. The crystallization, or devitrification, from the glassy state will be investigated using the time-temperaturetransformation (TTT) diagram as a framework for crystallizing materials and glass transition temperature for amorphous materials. The research hypothesis is that one can create more stable amorphous glass if the nucleation nose and the crystallization nose are avoided, with the former occurring at a shorter time. Flash differential scanning calorimetry (FDSC) will facilitate exploring a wide range of high cooling rates or short isothermal crystallization/nucleation times to establish the potential for analyzing the delivery of specific compounds into stable materials. Our experimental approach will be guided by collaboration with chemistry for material synthesis. Specifically, we will investigate, 1. a wide range of high cooling rates or short isothermal crystallization/nucleation time to establish the bounds of the potential for making specific compounds into stable glasses, 2. the crystallization process from the heat-flow curves and construct the TTT diagram. The diagram will help to understand how the microstructure evolves under extreme conditions. The project includes hands-on research opportunities for underrepresented minority students attending PVAMU, a Historically Black College and University (HBCU), to utilize stateof- the-art equipment in their research. The proposed team will incorporate the proposed research components into undergraduate and graduate classes to understand relevant theories. The research will provide the foundation for the PI to establish a robust energetic materials research program. This new program will enhance student education and research experiences, enabling them to enter STEM careers critical to national security and defense missions.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Apr 20, 2023
- Source ID
- FA95502210296
Entities
People
- Nabila Shamim
Organizations
- Air Force Office of Scientific Research
- Prairie View State College
- United States Air Force