Black and Smokeless Powders Technologies for Finding Bombs and the Bomb Makers (1998) / Chapter Skim
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Appendix I: Glossary
Appendix I: Glossary
Pages 154-163
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From page 154... ...
Base grain Smokeless powder that has neither a deterrent coating nor a graphite glaze. Black powder A deflagrating intimate physical mixture of sulfur, charcoal, and an alkali nitrate, usually potassium, but sometimes sodium nitrate.
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From page 155... ...
Compatibility Lack of chemical reaction between a foreign material and an energetic material at elevated temperature. Normally measured by such thermal stability tests as Differential Scanning Calorimeter, Taliani Heat Test, and Vacuum Stability Test.
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(2) A surface coating applied to smokeless powder to retard the initial burning rate, initial gas generation rate, and initial flame temperature; sometimes known as a surface moderant.
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Flash suppressant A chemical substance added to smokeless powder to reduce or eliminate visible muzzle flash. Fragmentation Tangible physical objects or missiles propelled outward to high speeds by an explosion, or the process in which such objects are produced.
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From page 158... ...
, especially that emitted by a nucleus in a transition between two energy levels. Glazing The process of coating and polishing the surface of black powder and smokeless powder to improve conductivity, reduce static electricity buildup, to improve the flow properties during loading of ammunition, to increase the packing density of smokeless powder in cartridges, and to improve ignition by improving the flame spread from grain to grain.
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From page 159... ...
Lift charge Granulated black powder used to propel aerial display fireworks into the air. The burning characteristics of black powder substitutes and smokeless powders make them unsuitable for use as lift charges.
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Not normally found in commercial smokeless powders. Nonideal explosive An explosive that releases its energy slowly following shock compression and heating.
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Precursor chemical A chemical used to synthesize an explosive material through a chemical process or as a component in a mixture that enhances the destructive force. Primer A small initiating device used to ignite smokeless or black powder.
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From page 162... ...
Small arms Guns, typically handheld, or ammunition for a gun, of less than 20mm caliber. Smokeless powder A granular, free-flowing, solid propellant of various morphologies, using nitrocelluse as an active ingredient.
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Standard atmospheric pressure is 760 torn Tracing The process of identifying a commercial product by use of an external agent and record keeping through the manufacturing, distribution, and sale of that product. Triple base Solid propellant containing nitrocellulose, nitroglycerin (or, e.g.
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