K. L. Kossanke, B. J. Kosanke & Richard C. Dujay ABSTRACT: The morphology (size, shape and surface features) of the constituent particles in a pyrotechnic composition affects its performance. While this is particularly true for high melting point fuels and oxidizers in the composition, to a lesser extent it is also true for those with …
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Category:JPyro – Articles
The main category – things that are published in the Journal
Speculation on the Effects of Gunshot or Explosive Residues on Historic Silk Flags
Charles S. Tumosa ABSTRACT: Historic battle flags and uniforms are collected by museums, and many have significance as icons representative of their owners as well as historic context. The effects of battle, both mechanical and chemical, have an impact on the projected lifetimes of these objects in museums website here. Modern air quality, as well …
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Summary Report on Tests on Display Fireworks Conducted by the Bureau of Mines for the U.S. Department of Transportation Relative to Hazard Classification of Display Fireworks
J. Edmund Hay Introduction: The U.S. Department of Transportation (DOT) requested the U.S. Bureau of Mines to conduct tests on explosive substances and articles in support of the involvement of both agencies with the United Nations (UN) Group of Experts on Explosives pursuant to the development of an international classification system for explosive substances and …
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Brief Survey of Chromium Toxicity
Monona Rossol I recently read some information in the pyrotechnic literature[1] about chromium toxicity, which, unfortunately, was not completely correct. Since there are some serious health concerns regarding chromium, this brief article has been written to present a survey of some of what is known.[2–4] Chromium (Cr) is probably the most complicated of the metals …
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Commercial Developments in Red Phosphorus Performance and Stability for Pyrotechnics
Sebastian Hoerold and Andrew Ratcliff ABSTRACT: Red phosphorus has become an essential ingredient in the production of modern smoke and obscurant devices. Nearly all multispectral developmental projects are being based on the new versions of red phosphorus available from Clariant. In pyrotechnics and munitions, phosphine liberated by the traditional red phosphorusbased smoke compounds may diffuse …
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Pyrotechnic Reaction Residue Particle Identification by SEM / EDS
K. L. & B. J. Kosanke and Richard C. Dujay ABSTRACT: Today the most reliable method for detecting gunshot residue is through the combined use of scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) of the resulting X-rays. In recent years, this same methodology has found increasing use in detecting and characterizing pyrotechnic reaction …
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Review of: Incendiary Art: The Representation of Fireworks in Early Modern Europe – Kevin Salatino
Incendiary Art: The Representation of Fireworks in Early Modern Europe Kevin Salatino Review by Jim Malek This is a richly documented paperback book, one of the series called Bibliographies & Dossiers from the Getty Research Institute for the History of Art and the Humanities, documenting an exhibit held at the Institute in 1999. It contains …
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Pressure, Plume Flicker, and Acoustic Data Correlation in Labscale Hybrid Rockets
Mary Fran. Desrochers, Gary W. Olsen, Chris Luchini, and M. Keith Hudson ABSTRACT: The development of the hybrid rocket motor has been plagued by combustion instabilities. These are usually monitored as fluctuations in chamber pressure and are on the order of tens of Hz in frequency. Previous work using our labscale hybrid system has also …
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Review of: The Big Bang A History of Explosives – George I. Brown
The Big Bang A History of Explosives George I. Brown Review by Dave Caulkins George Brown’s The Big Bang, subtitled A History of Explosives is a good popular treatment of explosives from the ninth century AD to modern times. The first third of the book is taken up with gunpowder, starting with its obscure origins in …
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Fireworks Shell Drift due to Shell-to-Bore Clearance
Randall K. Norton ABSTRACT: For fireworks aerial shells, decreasing shellto- bore clearance and increasing mortar length appear to have the effect of increasing the predictability of fireworks aerial shell trajectories, and thus dud aerial shell impact points. Some geometrical considerations are given to the influence of mortar length and shell-to-bore clearance on apparent aerial shell …
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