Applications for molybdenum
Metalworking and metallurgy
About ¾ of all molybdenum mined is used for heat-resistant alloys. It significantly increases the heat resistance and strength of metals and eliminates brittleness. These alloys can serve as the basis for refractory structural materials in the nuclear power and aerospace industries. Piercing molybdenum mandrels are used for piercing stainless, steel seamless pipes. Supplier "Auremo" offers to buy high quality products that meet GOST and international standards.
Electrotechnics
Molybdenum rod is used for welding low-alloy and heat-resistant steels. The rod may have copper coating, sometimes chromium is added. Molybdenum rod is used together with tungsten in lighting devices. Depending on surface condition and diameter, non-spiral and spiral-shaped cathodes, semiconductor device springs, grids, loop heaters for electronic devices, and traverses and bushings are made. The thermal expansion coefficient of molybdenum and glass is virtually identical, so molybdenum is widely used for electrical contacts soldered into glass. MoO3 molybdenum anhydride is used in lithium batteries as a cathode.
Military-industrial complex
Molybdenum is indispensable for making the shells of supersonic airplane heads and missile heads. Alloys of molybdenum and molybdenum itself are refractory materials which are used in two variants. In the first variant, they are heat shields separated from the main structural material by means of thermal insulation. The other option is the main structural element. Molybdenum and its alloys are somewhat inferior to tungsten in strength, but in contrast to tungsten, molybdenum is much lighter and leads at temperatures below 1350-1450 ° C on specific strength. Widespread use in the manufacture of parts and plating for rocket carcasses, as well as supersonic aircraft have molybdenum and niobium, and alloys made of these materials in comparison with tantalum, tungsten and their alloys show high specific strength up to temperatures of 1370 ° C.
Optics
In this field, monocrystalline molybdenum is used as a coating for the mirrors of high-power gas-dynamic lasers. It is also used in high-temperature furnaces and their construction and in the melting of optical glass for glass bath electrodes.
Other areas
In medicine, technetium-99 derived from Mo-99 is used for diagnostic purposes. The price of one gram of Mo-99 is $46 million and is unlikely to drop in the long term. Molybdenum compounds - sulfides, molybdates and oxides are used as catalysts of chemical reactions, components of glazes and pigments of dyes. MoF6 is used for applying metal molybdenum to various coatings.
| Grad | 1/Grad | kg/m3 | J/(kg-grad) | W/(m-grad) | MPa | Oh-m-m |
|---|---|---|---|---|---|---|
| 20 | 4,9x10-6 | 10.2 | 0.054 | 0.256 | 142 | 2620 |
Supply
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