The effect of aluminum particles dispersity on characteristics of ammonium perchlorate—aluminum composition laser ignition

5th International Congress on Energy Fluxes and Radiation Effects 2016

Medvedev, V.V.^1 ; Forat, E.V.^1 ; Tsipilev, V.P.^1 ; Yakovlev, A.N.^1

National Research Tomsk Polytechnic University, 30 Lenin Ave., Tomsk

634050, Russia^1

关键词: Aluminum composition;    Aluminum particle;    Ammonium perchlorates;    Dispersity;    Ignition energy thresholds;    Laser ignition;    Stoichiometric ratio;    Thermal theory;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/830/1/012146/pdf
DOI  :  10.1088/1742-6596/830/1/012146

来源: IOP

【 摘 要 】

Ammonium perchlorate-aluminum compositions taken in stoichiometric ratio were ignited in air and under the cover with 1.06-μm 0.8-ms-long laser pulses. The ignition energy thresholds were measured for samples at various dispersity of Al. The causes of the difference in examined compositions sensitivity to the influence of laser radiation is considered from the perspective of the thermal theory.