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Properties and uses of titanium carbide ceramics

wallpapers Industry 2020-11-05
Titanium carbide ceramics are typical transition metal carbides. Its bond comprises ionic bonds, covalent bonds, and metal bonds mixed in the same crystal structure, so TiC has many unique properties. The crystal design determines that TiC has the essential characteristics of high hardness, high melting point, wear resistance, and electrical conductivity.
Titanium carbide TiC ceramic is a face-centered cubic crystal type, high melting point, good thermal conductivity, high hardness, good chemical stability, no hydrolysis, good high-temperature oxidation resistance, and does not react with acid at room temperature. Still, it is in nitric acid and hydrofluoric acid. It can dissolve in the mixed acid and form nitrides at 1000℃ in a nitrogen atmosphere.
Application of titanium carbide ceramics

1. Multiphase materials: Titanium carbide ceramics are superhard tool materials. TiC can be combined with TiN, WC, Al2O3, and other raw materials to make various multiphase ceramic materials. These materials have a high melting point, high hardness, and excellent chemical stability—the preferred material for cutting tools and wear parts. Titanium carbide-based cermets are used for high-speed wire guide wheels and carbon steel cutting because they do not produce crescent wear with steel and have good oxidation resistance. Multiphase ceramic tools containing titanium carbide have been widely used.

2. Coating material: Titanium carbide as a surface coating is an extremely wear-resistant material. Some strong carbides are plated on the diamond surface by physical or chemical methods to form metals or alloys. These metals or alloys can interact with the carbon atoms on the diamond surface at high temperatures to form stable metal carbides. These carbides can have a good bond with diamond and can be well infiltrated by the base metal, thereby enhancing the adhesion between the diamond and the base metal. Depositing a layer of titanium carbide film on the tool can increase the device's service life several times.

3. In the research of nuclear fusion reactors, titanium carbide coating materials and (TiN+ TiC) composite coating materials, after chemical heat treatment, form an anti-tritium permeation layer on the surface of titanium carbide, which can resist hydrogen ion irradiation and is very resistant. The temperature gradient and thermal cycle.

4. Also, titanium carbide can also be used to make crucibles for melting tin, lead, cadmium, zinc, and other metals; transparent titanium carbide ceramics are also right optical materials.

Trunnano is one of the world's largest producers of titanium carbide powder. If you have any questions or needs, please contact Dr. Leo by email: brad@ihpa.net.

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