Spectral and Acoustic Characterization of Nanoenergetic Devices Based on Sodium Perchlorate-Impregnated Porous Silicon
Abel Apaza Quispe, Ana C. Bueno Borges, Walter Jaimes Salcedo
TL;DR
This study explores how to create nanoenergetic materials using porous silicon and sodium perchlorate, optimizing their energy release for precision applications.
Contribution
The paper introduces a novel correlation between acoustic signatures and explosion intensity in nanoenergetic composites.
Findings
Optimal energy release occurs with PS anodized at 100 mA cm−2 for 15–20 min due to hierarchical pore architecture.
A portable multispectral optical system was developed for safe in situ characterization of explosions.
Acoustic analysis revealed a new correlation between acoustic signatures and explosion intensity in PS–NaClO4 systems.
Abstract
This work reports the controlled synthesis and characterization of nanoenergetic composites composed of porous silicon (PS) impregnated with sodium perchlorate (NaClO4) for precision energy-release applications. PS films were fabricated by electrochemical anodization of p-type silicon (10–20 Ω·cm), with systematic variation in current density (50–200 mA cm−2) and anodization time (10–25 min) to tailor pore morphology. The energetic behavior of the composites was evaluated through thermal ignition tests, optical emission spectroscopy (300–1000 nm), acoustic analysis (0–500 Hz), and high-speed imaging. Optimal energy release was obtained for PS films anodized at 100 mA cm−2 for 15–20 min, attributed to their hierarchical pore architecture that facilitated complete oxidant infiltration. Overall, this work provides additional insights beyond previous reports by correlating the explosive…
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Taxonomy
TopicsSilicon Nanostructures and Photoluminescence · Energetic Materials and Combustion · Boron and Carbon Nanomaterials Research