Molybdenum And Its Applications

The properties of molybdenum are close to those of tungsten, its melting point is about 2620°C, and it has high high-temperature strength at high temperatures. Above 1000°C, molybdenum has a relatively high specific strength, so it is an extremely useful high-temperature structural material.

Molybdenum has better high-temperature conductivity than iron and nickel, and its expansion coefficient is about 30% that of copper, which is almost the same as that of special glass used in electron tubes.

Molybdenum has good corrosion resistance and its acidity is second only to tungsten. In the metallurgical industry, molybdenum is an important additive: adding molybdenum can improve the heat resistance, corrosion resistance, wear resistance, toughness and hardenability of the alloy, so it is a very beneficial element in the alloy.

Because molybdenum has a high melting point and good electrical and thermal conductivity, it can be used as a heating element and heat reflective material for high-temperature furnaces.

The operating temperature of an electric furnace using molybdenum as a heating element can reach 1700°C.

In the electronic and electrical industry, it can be used to produce electron tube cathodes, grids, high-voltage rectifier components, and filament supports in incandescent lamps.

Its wear-resistant, heat-resistant and corrosion-resistant properties make it commonly used in the metal processing industry, and can be used as extruded films, die-cast films and casting mold cores.Molybdenum alloy has high high-temperature strength and specific strength.Under the protection of coating, it can be used to make rocket engine nozzles, heat shields and other parts.

Because molybdenum and molybdenum alloys have small thermal neutron absorption cross-sections, good stability to nuclear fuel and resistance to liquid metal corrosion, they can be used as cladding materials and core structural materials for gas-cooled reactors in the atomic energy industry.