About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Real Time Imaging for Materials Science and Processing
|
| Presentation Title |
In-situ Multi-phase Reaction System Diagnostic Using Dual-Camera Hyperspectral Imaging and Pyrometry |
| Author(s) |
Qinghui Meng, Michael Zachariah |
| On-Site Speaker (Planned) |
Qinghui Meng |
| Abstract Scope |
We developed a dual-camera microscopic imaging system for in-situ characterization of energetic material reactions, enabling simultaneous, spatially and temporally diagnostic of multi-phase temperatures and spectra. One camera captures RGB video for three-color pyrometry, yielding high-resolution condensed-phase temperatures. The second monochrome camera employs a slit-mask and diffraction grating design to perform hyperspectral imaging, enabling spatially resolved gas-phase temperature measurements via two-line potassium emission spectroscopy and identification of species such as AlO, K and Na. This method was applied to various nano-metal/KClO4 thermite systems, including Al, Mg and Al/Mg mixtures. Notably, a 7:3 Al/Mg mixture exhibited extended high gas-phase temperature regions compared to other Al/Mg ratios, suggesting synergistic effects in heat and mass transfer. This system provides a powerful platform for investigating complex combustion phenomena and can be broadly extended to study other high-temperature material dynamics. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Composites, Other |