2012年4月22日星期日

The Application of Tungsten and Rare Earth in Military


Tungsten is a rare metal with high melting point , belonging to the family of VIB in the sixth cycle of the periodic system of elements. Tungsten is silver-white metal with the appearance similar to steel. Tungsten's high melting point, low vapor pressure and the evaporation rate is also small. Tungsten metal can resist  high temperature without deformation.It has been widely used to produce high-speed steel, high-speed cutting tools, and military industries. In aviation and rocket technology, and other sectors where machine parts, engines and instruments with high temperature resistance are needed, tungsten and other refractory metals (tantalum, niobium, molybdenum, rhenium) alloy is used as a strong material.Tungsten resources are used for a variety of high-speed ammunition, especially armor-piercing 

 
Rare Earth is the lanthanide elements in the periodic table, - lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), lutetium (Lu), as well as the two elements- scandium (Sc) and yttrium (Y) for a total of 17 kinds of elements known as rare earth elements (RareEarth). Referred to as rare earth (RE or R).

Rare earth metals are widely used in the field of electronics, petrochemical, metallurgy, machinery, energy, light industry, environmental protection, agriculture,etc.It also plays an extremely important role in the military industry.

 

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