Towards automatic characterization of nano-energetic material response to directed energy

Timothy Gaines; Camden Boyle; J. Alex Hurt; Matthew R. Maschmann; James M. Keller; Grant J. Scott; Stanton R. Price

doi:10.1117/12.2663877

15 June 2023 Towards automatic characterization of nano-energetic material response to directed energy

Timothy Gaines, Camden Boyle, J. Alex Hurt, Matthew R. Maschmann, James M. Keller, Grant J. Scott, Stanton R. Price

Proceedings Volume 12513, Energy Harvesting and Storage: Materials, Devices, and Applications XIII; 1251304 (2023) https://doi.org/10.1117/12.2663877
Event: SPIE Defense + Commercial Sensing, 2023, Orlando, Florida, United States

Abstract

Nanoenergetic materials offer high-density energy storage that may be reacted to produce heat and release gaseous products. However, the fundamental reaction mechanisms of isolated nanoenergetic fuel particles (typically aluminum - AL) remain poorly understood. In this study, the structure-property relationships of photothermally heated AL nanoparticles are explored using an optical microscope setup and laser-based photothermal heating. Our research explores optical imaging and computer vision techniques to measure distinctive features from images captured before and after directed energy excitation of nanoenergetic particles. These features are used to describe the reactions in the pursuit of creating an automated nanoenergetic material reaction characterization model. Specifically, optical imagery of nano-aluminum particle clusters is taken before and after the reaction is initiated via laser irradiation. Through image preprocessing and registration, we remove untargeted nanoparticle clusters and align the images. We then classify particle reactions into three classes, Spallation, Sintering, or a Combination of both, through an examination of various features derived from our preprocessed imagery. These techniques serve as tools to aid researchers in quantitatively measuring reaction properties, such as loss of mass, and accelerating the search for optimized reaction parameters.

Conference Presentation

Citation Download Citation

Timothy Gaines, Camden Boyle, J. Alex Hurt, Matthew R. Maschmann, James M. Keller, Grant J. Scott, and Stanton R. Price "Towards automatic characterization of nano-energetic material response to directed energy", Proc. SPIE 12513, Energy Harvesting and Storage: Materials, Devices, and Applications XIII, 1251304 (15 June 2023); https://doi.org/10.1117/12.2663877

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