Category:JPyro – Articles

W. R. Maxwell Introduction: The fact that certain pyrotechnic compositions when pressed into a tube and ignited burn with a loud whistling noise has been known and used by firework manufacturers for many years. The two compositions most widely employed appear to be (a) a mixture of dry powdered potassium picrate and potassium nitrate in …
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Fred Ryan ABSTRACT: In a fuel-air salute a fine metallic fuel is first dispersed into the surrounding air, then ignited. Such a salute is much safer than a conventional salute as the salute fuel must be mixed with air to obtain the oxygen needed to function. It can not explode violently in bulk or in …
Continue reading Progress in Developing a Fuel-Air Salute

Kazuo Hara, Mitsuhiro Kanazawa, and Tadao Yoshida ABSTRACT: A hazard evaluation has been carried out for the safety assessment of a new non-azide gas generant for automotive airbag inflators. The gas generant (UN) is composed of urazole (U) and a metal nitrate (MNO3;N) with other additives included to provide the required performance. The impact, shock, …
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K. L. and B. J. Kosanke ABSTRACT: A variety of flash powders were tested under weak confinement to determine the sound pressure levels and tonal characteristics produced. In these tests it was found that: the sound output from mixtures prepared with potassium perchlorate from four manufacturers are essentially equivalent; there are significant differences in the …
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R. I. Grose*, M. Cartwright and A. Bailey ABSTRACT: Data obtained from an analysis of an extinguished strobe star using the technique of scanning electron microscopy (SEM) is used to provide additional evidence for a previous model for the cyclic burning process seen in a white strobe star composition. The model relies on the generation …
Continue reading SEM Studies on a Strobe Star Composition