najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2016-7-6-1017-1023najo-840Research ArticlePHYSICSФИЗИКАThe dependence of the critical energy density and hot-spot temperature on the radius of metal nanoparticles in PETNZvekovA. A.

Kemerovo, 650000

kriger@kemsu.ruNikitinA. P.

Kemerovo, 650000

GalkinaE. V.

Kemerovo, 650000

KalenskiiA. V.

Kemerovo, 650000

Federal Research Center of coal and coal chemistry SB RAS (Institute of Coal Chemistry and Material Science SB RAS)Russian FederationKemerovo state UniversityRussian Federation2016130820257610171023Copyright © Zvekov A.A., Nikitin A.P., Galkina E.V., Kalenskii A.V., 20252025Zvekov A.A., Nikitin A.P., Galkina E.V., Kalenskii A.V.Zvekov A.A., Nikitin A.P., Galkina E.V., Kalenskii A.V.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/840

The dependencies of critical energy density and corresponding hot-spot temperature were calculated in terms of thermal model of energetic materials laser initiation for 12 metal nanoparticles in pentaerythritol tetranitrate (PETN) at pulse duration 12 ns. We showed that the critical hot-spot temperature depends mostly on the nanoparticle’s radius while its dependence on the specific heat of the metal is much weaker. The equations for the critical parameters of initiation on radius and specific heat of the nanoparticles were derived. The results are essential for the explosive compounds for optical detonator cup optimization.

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The authors declare that there are no conflicts of interest present.