smokeless powder


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smokeless powder:

see explosiveexplosive,
substance that undergoes decomposition or combustion with great rapidity, evolving much heat and producing a large volume of gas. The reaction products fill a much greater volume than that occupied by the original material and exert an enormous pressure, which can be
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.

Smokeless Powder

 

a low explosive whose basic component is nitrocellulose, plasticized by one of several organic solvents. Smokeless powder is a hard, corniculate substance, similar to plastic; it is manufactured in the form of so-called powder elements—disks, tapes, grains, tubes, and so on. It is very durable and can burn steadily without blowing up under high pressure (tens or hundreds of meganewtons per sq m—that is, hundreds or thousands of kilogram-force per sq cm). The basic types of smokeless powder are ballistite, cordite, and pyroxylin powders; they differ mainly in the technology of production, in the solvents used, and in the kind of nitrocellulose. Smokeless powder is significantly superior to black powder in its burning stability and efficiency. It is used in all types of firearms, in rocket engines using solid fuel, and for other purposes. The first smokeless powder—pyroxylin powder—was invented in 1884 by the French engineer P. Vieille.

smokeless powder

[′smōk·ləs ′pau̇d·ər]
(materials)
Nitrocellulose containing 13.1 percent nitrogen with small amounts of stabilizers (amines) and plasticizers usually present, as well as various modifying agents (nitrotoluene and nitroglycerin salts); used in ammunition.
References in periodicals archive ?
A" nitrocellulose, smokeless powder which propelled the 220 gr.
Asbaghi (2012) found that NG occurring in smokeless powder persisted in soil in significant quantities (152 mg/kg at a 1% SP rate) after 60 d.
Except for ball powder, smokeless powder is manufactured by one of two general methods, differing in whether organic solvents are used in the process (Meyer 1987; Radford Army Ammunition Plant 1987).
The process of smokeless powder burning is at first glance a straightforward one of combustion.
The rifles designed by this genius were to take Steyr from single-shot, blackpowder rifles into the realm of modern, smallbore, smokeless powder repeating rifles.
With Blue Dot smokeless powder, I have chronographed the following:
FBI veteran Paul Fennewald also told the paper that the white smoke from the blasts suggests the device used black or smokeless powder, not plastic explosives or C-4.
IN THE 1890S, AFEW YEARS AFTER smokeless powder was invented, various makers and countries displayed an interest in semiauto pistols.
Those who shoot skeet know what I mean when I describe it as a station seven shot from the low house, a shot no skeet shooter has missed since the introduction of smokeless powder.
And when he was using modern smokeless powder, the gas pressure is somewhere between 40,000 to 50,000 pounds of pressure per square inch.
Savage Arms gained a lot of attention when it introduced the only muzzleloader currently approved safe with smokeless powder, the Savage 10ML-II.