Kazuomi Itoh, Dayu Ding, Hiroshi Tajima and Tadao Yoshida* Abstract: The spectroscopic measurement of burning stars has been carried out in order to examine the spectra of the stars, the peak intensity profiles of the spectra, the burning time and behavior, and the effect of filters on the attenuation of peak intensity and the excitation …
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Category:JPyro – Articles
The main category – things that are published in the Journal
Spectroscopic Measurement of Light and Flame of LEDs and Liquid Colors
Kazuomi Itoh, Dayu Ding and Tadao Yoshida* Abstract: Spectra and color values of the light from LEDs and liquid colors were measured using the PMA-11C7473-36 spectrometer as a preliminary study of the color of fireworkflames. The light from LEDs was stable and reproducibly measured. The color values of the light from LEDs did not vary …
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Metal–Fluorocarbon Pyrolants: VII. Crackling Effect Based on Mg/KClO4/(C2F4)n
Ernst-Christian Koch Abstract: Amixture of magnesium, potassium perchlorate, KClO4, and polytetrafluoroethylene, (-C2F4-)n, displays an audible crackling effect with nice sparks. Keywords: crackling effect, magnesium, potassium perchlorate, polytetrafluoroethylene, Teflon™ Ref: JPyro, Issue 24, 2006, pp11-16 (J24_11)
Application of Conducting Composition Fuseheads in Pyrotechnic Devices
Vojtech Pelikan Abstract: The electrical properties of bridgeless fuseheads were examined. A conducting composition conducting composition based on the mixture lead styphnate, Viton binder and conductive admixture was used as the fusehead as the fusehead priming mixture. Several types of conducting admixtures, namely two types of natural finely milled graphite and special conducting carbon black, …
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Reaction propagation between fireworks shells and compositions confined in steel pipes
E. Contestabile and B. von Rosen Abstract: This study presents the experimental results on the ignition of linear arrays of fi reworks articles and bulk stars and describes their propensity to mass explode. Star and report shells, roman candles, and bulk cylindrical and spherical stars were functioned in steel pipes through initiation with a small …
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Interior Pressure in the Mortar and Motion of a No. 3 Shell in a Fireworks Shot
Yuzo Ooki, Dayu Ding, Masamori Higaki and Tadao Yoshida* Abstract: Interior pressure in a fireworks mortar and initial velocity for the shot of a no. 3 shell were measured and results were analyzed. The observed initial velocity was mainly explained by the action of the interior pressure during the shot. On the other hand, a …
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Review of: Fireworks, Principles and Practice – Rev. Ron Lancaster
FIREWORKS – PRINCIPLES AND PRACTICE 4th Edition Rev R Lancaster MBE Review by Christopher Pearce, Chairman – British Pyrotechnists Association The name of Ronald Lancaster has been synonymous with the British Fireworks Industry for the past forty years or so and his firm, Kimbolton Fireworks, has been responsible for many of the major displays staged …
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2nd Workshop on Pyrotechnic Combustion Mechanisms
Ernst-Christian Koch and Rutger Webb For the second time the “Workshop on Pyrotechnic Combustion Mechanisms” was held at Fraunhofer ICT in Pfinztal, Germany, preceding the combined 32nd IPS and 36th ICT Seminar in Karlsruhe. The Workshop had 41 registered participants from Germany, Poland, UK, USA, Israel, Turkey, Austria, Sweden, Finland and the Netherlands. This event …
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The Combustion Products of Novel High-Nitrogen Energetic Materials
David E. Chavez, Michael A. Hiskey, My Hang Huynh, Darren L. Naud, Steven F. Son and Bryce C. Tappan Abstract: High-nitrogen energetic materials based on the tetrazine and tetrazole ring systems have shown unique and unpredictable combustion behavior. Unlike traditional energetic compounds, such as 2,4,6-trinitrotoluene (TNT) and hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX), which derive their energy by the …
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