2013年7月29日星期一

The second newly molybdenum

Is filled with explosive warheads for lining (military called liner), this warhead to penetrate military and industrial applications and cutting deep depth. In such devices, the lining around the detonation of explosives in a controlled manner, the liner in a very peculiar way of deformation. Deformation of the lining material produced has a high speed, great Tungsten eletrod erod fragments (injectors) can deeply penetrate the target or targets.
    Molybdenum explosives liner lining the development is a new area of ​​research. Conventional warhead shaped charge liner material is copper, but the velocity is 5.12 Mo km / sec (copper and 3.94 km / sec), density of 10.2 g / cm 3 (copper is 8.93 g / cm 3). In order to obtain high-speed coherent jet tip velocity must be high. Drug use molybdenum spray tip design allows for speeds greater than 12 km / sec, while the use of copper speed was less than 10 km / sec. Speed ​​difference between the 20% to 25%, the reason is that the tip of the acoustic velocity energy increases, resulting in increased penetration. The latest dynamite and a conical liner Loudspeaker as well. Molybdenum and copper will be the ordnance on a major reform.
    The third new achievements molybdenum is manufactured flat display device. In the electronics industry, flat panel display devices are still using the active matrix liquid crystal display (LCD) technology. But the LCD is in various stages of development and field emission display (FED), electroluminescent display (EL), plasma display panel (PDP), cathode-ray emitting display (CRT) and vacuum fluorescent display (VFD)) for the whole azimuth competition. In this display technology, display by two sheets of glass separated by a vacuum achieved. The back of the glass as the cathode, in this piece of glass in the form of field emitter array 500 million distributed over the emitter tip, the distance between the emitter than the smaller pixels on the TV screen. The emitter tip is made of molybdenum, which can be individually controlled in the display control can also be grouped. Given their wide viewing angle, fast response time, a wide range of temperature tolerance, especially low power consumption, and requires clear, bright, removable, durable trend together, become almost panel display technology development the main driving force. Indicating that the market has more than $ 10 billion market. Flat panel display technology by electron beam evaporation deposition of molybdenum on the emitter tip, the amount, though small, but for the development of large-screen, high-definition television, has a limitless future.

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