FSC239Y5 Lecture Notes - Lecture 31: Hexamethylene Triperoxide Diamine, Scanning Electron Microscope, Cleanroom
Document Summary
Outline: definitions and chemistry, explosives and the law, analysis at cfs, case study. What is an explosion: sudden release of alarge amount of energy. Emission of radiation (light and/or heat: types. High energy arcing causes rapid vaporization of solids and expansion of gases. What is an explosive: any chemical containing a high amount o potential energy that is capable of undergoing rapid chemical reaction, not external reactants required such as atmospheric oxygen. Fuel + atmosphere oxygen + ignition sources: deflagration. Proceeds below the speed of sound: detonation. Decomposition via schockwave- reaction from in medium proceeds above. Classification the speed of sound: one of the most common ways to classify explosives by its use. Low explosives (below speed of sound, but easier to ignite) Propellants: used to accelerate projectiles, such as bullets, rockets or fireworks, reaction proceeds via deflagration, smokeless powder and a primer, require confinement for explosion, smokeless powder, black powder; pyrodex.
