Low, or deflagrating, explosives such as gunpowder do not produce as much pressure as high explosives but they do burn very rapidly the burning starts at one end of the explosive and burns all the way to the other end in just a few thousandths of a second. History of gunpowder term paper at a rate approximately equal to the speed of sound traveling through that material in a high explosive, the fuel and oxidizer . Gunpowder is an explosive material that burns rapidly to form a high pressure gas it is also used in explosives for blasting operations, fireworks and fuses in slightly different forms gunpowder has had a unique history since its discovery in the early 1100's . Properties of selected high explosives or a mixture of a pyrotechnic material and high explosive (eg ammonium large quantities of gas at elevated .
The history of explosives - an explosive is a device that produces a volume of rapidly expanding gas that exerts pressure it is considered a high explosive. The gases produced by burning gunpowder generate enough pressure to propel a bullet, but not enough to destroy the barrel of a firearm this makes gunpowder less suitable for shattering rock or fortifications, where high explosives such as tnt are preferred. Many commonly available materials, such as fertilizer, gunpowder, and form: known : ied : use: high explosives package contains explosive material may include .
How to calculate explosive pressure in confined spaces how did you calculate the thrust without knowing the gas pressure since i am using a high-explosive . Explosive material has many special characteristics: it is a chemically unstable material, it changes its form very fast and, (= burn very fast) high explosives . Combustion and explosives the velocity at which the shock wave front passes through the explosive material relatively high explosive power. A brief history of chemical explosives materials that result in an instantaneous release of gas or heat the most common form of explosives in human history, used .
Included in this group are petroleum products such as propane and gasoline, gunpowder (both black and smokeless), and light pyrotechnics, such as flares and fireworks, but can replace high explosives in certain applications, see gas pressure blasting. Gas under pressure 2 burning solid the materials are often powdered or granular, as with certain pyrotechnics gunpowder, or high explosive,. Gunpowder in the cartridge case starts to burn, causing it to change from a solid material to a gas this change creates pressure within the cartridge, which in turn forces the bullet down the barrel and down range. Research paper gunpowder - history of explosive material that burns rapidly to form a high pressure gas expansion of this gas inside the gunpowder history . An explosive charge is a measured quantity of explosive material, which may be composed of a single ingredient or a combination of two or morethe potential energy stored in an explosive material may, for example, bechemical energy, such as nitroglycerin or grain dustpressurized gas, such as a gas cylinder or aerosol cannuclear energy, such as .
Gunpowder's burning rate increases with pressure, so it will burst containers if contained but otherwise just burns in the open ignition of the powder packed behind a bullet must generate enough pressure to force it from the muzzle at high speed, but not enough to rupture the gun barrel . Gunpowder is a propellant while dynamite is a high explosive the former produces pressure on a much slower timescale and with much lower maximum values than the latter - that's probably the easiest way to think about it. Powder, pressure & regulation a large charge of powder delivering high pressure cordite, a non-porous powder can be either granule or stick form the stick .
Gunpowder is the first physical explosivebefore its discovery, many incendiary and burning devices had been used, including greek fire, the discovery of gunpowder is attributed to experimentation in chinese alchemy by taoists in the pursuit of immortality, and is popularly listed as one of the four great inventions of china. What is the difference between black powder and modern smokeless gunpowder explosive: too high of a gas velocity and you get a high explosive, where the flame . Gunpowder: gunpowder, any of several low-explosive mixtures used as propelling charges in guns and as blasting agents in mining the first such explosive was black powder, which consists of a mixture of saltpetre (potassium nitrate), sulfur, and charcoal. Gunpowder, also known as black powder to distinguish it from modern smokeless powder, is the earliest known chemical explosiveit consists of a mixture of sulfur (s), charcoal (c), and potassium nitrate (saltpeter, kno 3).
Chapter i properties of explosives definition an explosive is a material, cither a pure single substance or the powder burns rapidly and produces gas it burns . When confined in a drill hole, the explosive on detonation produces extremely high pressure gases which impart energy in the form of shock and heave into the surrounding rock the performance of a high explosive depends upon the volume and temperature of the gases produced and on the velocity of detonation (vod).
Explosive: explosive, any substance or device that can be made to produce a volume of rapidly expanding gas in an extremely brief period there are three fundamental types: mechanical, nuclear, and chemical. The gases produced by burning gunpowder generates enough pressure to propel a bullet, but not enough to destroy the barrel of a firearm this makes gunpowder less suitable for shattering rock or fortifications, applications where high explosives such as tnt are preferred. Search essay examples a history of the gunpowder the explosive material that burns to form high pressure gas 1,055 words 2 pages.