The Main Synthesis Method of Titanium Carbide

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What is titanium carbide?

TiC is a light gray cubic crystal, which is not soluble in water. It has high chemical stability and can be dissolved by aqua regia or nitric and hydrofluoric acids.

TiC has a metallic luster and is gray with an iron grey color. It is of the NaCl simple cubic type. The lattice is 0.4329 nanometers. The space group Fm3m. TiC has strong covalent bonding between the carbon atoms, and titanium atoms. These bonded atoms are able to exhibit properties similar to those of metals. For example, they have a high melting temperature, a high boiling temperature, and high hardness. Their electrical conductivity is also good. TiC can be used to produce cermets as well as heat-resistant metals, cemented carbide, anti-wear material, high temperature radiation materials, and other high-temperature equipment.

Method of synthesis of titanium carbide

As raw materials, titanium dioxide and carbon black are used.

The dry powder mixture of high-purity Titanium dioxide and Carbon Black is mixed proportionally and then press-formed under a hydrogen-filled atmosphere in either a vertical or horizontal carbon tube heater. At 19002300degC reduction to get block TiC and then pulverization for titanium carbide product. Or, using carbon black and sponge titanium as raw materials. Carbon black (or titanium alloy or titanium waste recovered in carbide solid solutions) and sponge Titanium are mixed fully in proportion, and heated to 15001700degC with a high-purity hydrogen stream. Titanium carbide.

Direct carbonization of Titanium Metal:

Titanium powder (either reduced by sodium, or decomposed titanium hydride; less than 325 mesh), mixed with black carbon, is molded and heated at 1500-17degC using a high-purity stream of hydrogen in order to infiltrate carbon. The temperature and time of reaction are dependent on the raw material used, the particle size and performance.

Gas phase reaction method:

Hydrocarbons such as benzene and methane are mixed into the steam from titanium tetrachloride. After induction heating (or other methods), the steam is sent to deposit titanium carbide on the substrate. The reaction precipitates titania carbide on substrate. The precipitation of titanium carbide differs depending on the conditions of the reaction, including the ratio of reaction gas to gas flow, the temperature of the reaction, and gas flow rates.

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