EX Flashcards
Describe RDX
RDX (Cyclotrimethylene Trinitramine) – Economical material with good performance. Usually pink in color. Maximum application temperature is 325°F (163 по Цельсию) for one hour or less (see chart). Density 1.82 g/cc. Melting point 399°F. Detonation velocity is approx. 28,709 ft/sec.
Describe HMX
HMX (Cyclotetramethylene Trinitramine) – Used when an explosive with a higher temperature rating and higher performance than RDX is required. Material is usually white in color. Maximum application temper- ature is 400°F (204 градуса по Цельсию) for one hour or less (see chart), although application above the crystalline transition temperature of 300°F is strongly discouraged. Density is 1.9 g/cc. Melting point is 536°F. Detonation velocity is approx. 29,857 ft/sec.
Desribe HNS
HNS (Hexanitrosilbene) – Used for applications in which the material will be subjected to high temperatures. Material is substan- tially more expensive than RDX or HMX. Performance is less than that of RDX or HMX and somewhat less than that of PYX. Material is usually pale yellow in color. Maximum application temperature is 520°F (271 градус по Цельсию) for one hour or less (see chart). Density is 1.75 g/cc. Melting point is 600°F. Detonation velocity is approx. 22,967 ft/sec.
Describe PYX
PYX (Bis Dinotropyridine) – Used for very high temperature applications. Material is expensive. Performance is less than that of RDX or HMX but somewhat better than that of HNS. Material is usually deep yellow in color. Maximum application temperature is 600°F (316 градусов по Цельсию) for one hour or less (see chart). Density is 1.75 g/cc. Melting point is 860°F. Detonation velocity is approx. 23,623 ft/sec.
Что такое гексоген, октоген ?
RDX - гексоген
HMX - октоген
HSN - гексанитростильбен (ГНС)
PYX - пирин
Describe how EBW detonators work
The exploding-bridgewire detonator (EBW, also known as exploding wire detonator) is a type of detonator used to initiate the detonation reaction in explosive materials, similar to a blasting cap because it is fired using an electric current. EBWs use a different physical mechanism than blasting caps, using more electricity delivered much more rapidly, and explode in a much more precise timing after the electric current is applied, by the process of exploding wire method. This has led to their common use in nuclear weapons.[1]
What is EWM (Exploding Wire Method) ?
Exploding Wire Method (also known as EWM) is a high energy density process by which a rising current is applied to a thin electrically conductive wire. The heat vaporizes the wire, and an electric arc over that vapor creates a shockwave and explosion. Exploding Wire Method is best known to be used as a detonator in nuclear munitions, high intensity light source, and production method for metal nanoparticles.
