Conditions of Millisecond Laser Ignition and Thermostability for Ammonium Perchlorate/Aluminum Mixtures. Issue 3 (2nd March 2017)

• Record Type: Journal Article
• Authors: Medvedev, Valerii; Tsipilev, Vladimir; Reshetov, Aleksander; Ilyin, Aleksander
• Is Part Of: Propellants, explosives, pyrotechnics. Volume 42:Issue 3(2017)
• Page Start: 243
• Page End: 246
• Publication Date: 2017-03-02
• Subjects: Laser radiation -- Heat action -- Ignition thresholds -- Powder mixtures -- Ammonium perchlorate -- Aluminum; Propellants -- Periodicals; Explosives -- Periodicals; 662.2
• DOI: 10.1002/prep.201600291
• Languages: English
• ISSNs: 0721-3115

Abstract

Abstract: The experimental investigations of laser‐induced ignition and heat action of ammonium perchlorate and aluminum powder mixtures are presented in this paper. A laser pulse with wavelength of 1.06 μm and duration of 3.5 ms was used. Powder mixtures of different dispersion were tested, namely, coarsely dispersed powders and nanopowders with average surface diameters of 80 and 0.25 μm, respectively. The values of ignition thresholds and delays of the mixtures activity in air were measured, and experimental results for different exposure conditions were obtained. The possible reasons of different sensitivity for the given mixtures to laser pulse and heat action are discussed. Abstract :