Modification of electrostatic sensitivity by the resonant absorption of N-N bond under carbon dioxide laser irradiation

TY - JOUR

T1 - Modification of electrostatic sensitivity by the resonant absorption of N-N bond under carbon dioxide laser irradiation

AU - Ren, Ye ping

AU - Zhang, Ying

AU - Yang, Xiao ning

AU - Liu, Xiao dong

AU - Sun, Hao han

AU - Zhang, Xin yu

AU - Li, An

AU - Ding, Cai hao

AU - Shu, Qing hai

AU - Yang, Fan zhi

AU - Xia, Min

AU - Liu, Rui bin

N1 - Publisher Copyright: Copyright © 2026. Publishing services by Elsevier B.V.

PY - 2026/3

Y1 - 2026/3

N2 - Quantitatively modulating sensitivity of the energetic materials while minimizing detonation energy impact is a persistent challenge as conventional modification methods often sacrifice energy output. Herein, we propose a novel strategy utilizing resonant absorption of vibrational energy levels by specific laser wavelengths to induce thermal effects, leading to controlled lattice disruption with negligible molecular changes.By this method, the irradiation with a 10.6 μm CO2 laser line on RDX (hexahydro-1,3,5-trinitro-1,3,5-triazine) reduces electrostatic sensitivity by 30%, while detonation-related parameters (e.g., velocity, pressure) remain within acceptable error margins.Structural characterization confirmed irradiation-induced crystallographic changes and subtle molecular modifications in RDX. This finding highlights the underlying mechanism of the reduction process. CO2 laser photons are resonantly absorbed by the N-N bonds in RDX molecules, inducing thermal effects in the crystal lattice, leading to crystal melting and partial N-NO2 bond breakage, significantly reducing sensitivity.

AB - Quantitatively modulating sensitivity of the energetic materials while minimizing detonation energy impact is a persistent challenge as conventional modification methods often sacrifice energy output. Herein, we propose a novel strategy utilizing resonant absorption of vibrational energy levels by specific laser wavelengths to induce thermal effects, leading to controlled lattice disruption with negligible molecular changes.By this method, the irradiation with a 10.6 μm CO2 laser line on RDX (hexahydro-1,3,5-trinitro-1,3,5-triazine) reduces electrostatic sensitivity by 30%, while detonation-related parameters (e.g., velocity, pressure) remain within acceptable error margins.Structural characterization confirmed irradiation-induced crystallographic changes and subtle molecular modifications in RDX. This finding highlights the underlying mechanism of the reduction process. CO2 laser photons are resonantly absorbed by the N-N bonds in RDX molecules, inducing thermal effects in the crystal lattice, leading to crystal melting and partial N-NO2 bond breakage, significantly reducing sensitivity.

KW - Carbon dioxide laser

KW - Electrostatic sensitivity

KW - Energetic materials

KW - Laser induced breakdown spectroscopy

KW - Quantitative analysis

UR - https://www.scopus.com/pages/publications/105033680903

U2 - 10.1016/j.enmf.2026.02.005

DO - 10.1016/j.enmf.2026.02.005

M3 - Article

AN - SCOPUS:105033680903

SN - 2666-6472

VL - 7

SP - 106

EP - 114

JO - Energetic Materials Frontiers

JF - Energetic Materials Frontiers

IS - 1

ER -