1, cobalt-based alloys or cobalt-containing alloy steel used as combustion turbine blades, impellers, conduits, jet engines, rocket engines, missile components and chemical equipment and a variety of high-load heat-resistant parts and the atomic energy industry, an important metal material.
2, cobalt as a binder in powder metallurgy can ensure that cemented carbide has a certain toughness. Magnetic alloys are indispensable materials in modern electronic and electromechanical industries, which are used to manufacture various components of acoustic, optical, electric and magnetic devices.
3, cobalt is also an important part of the permanent magnetic alloy. In the chemical industry, cobalt in addition to high-temperature alloys and corrosion-resistant alloys, but also used for colored glass, pigments, enamel and catalysts, desiccants and so on.
Extended information:
1, cobalt's physical properties
Cobalt is a steel gray metal with a glossy, melting point of 1493 ℃, specific gravity of 8.9, relatively hard and brittle, cobalt is ferromagnetic, in the hardness, tensile strength, mechanical properties, thermodynamic properties, the electrochemical properties of cobalt. Cobalt is ferromagnetic, in terms of hardness, tensile strength, mechanical properties, thermodynamic properties, electrochemical behavior similar to iron and nickel. Heating to 1150 ℃ when the magnetic disappear.
2, the chemical properties of cobalt
Cobalt's valence is 2 and 3. At room temperature does not act with water, in the humid air is also very stable. In the air heated to more than 300 ℃ when oxidized to generate CoO, in the white heat when burning into Co?O? The fine metallic cobalt powder made by hydrogen reduction method can generate cobalt oxide by spontaneous combustion in air.
Baidu Encyclopedia-Cobalt