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Titanium carbide, a gray iron crystal with metallic luster that belongs to the NaCl cubic structure, is a simple cubic structure. The covalent bonding between the titanium and carbon atoms in TiC is equivalent to strong atoms. It has many properties similar to metals. These include high melting and boiling points, as well as hardness. Diamond is the only other material that can rival its hardness.
Titanium carbide has excellent thermal conductivity and electrical conductivity. This powder is superconducting even at low temperatures. TiC can be used in a wide range of applications, including the production of heat-resistant metals, cemented carbides, antiwear materials, high temperature radiation materials, and high-temperature vacuum devices. There are many other applications in different fields.
Titanium carbid powder preparation methods: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 pressed into a tube furnace in hydrogen using either a horizontal carbon furnace or a tube furnace vertical. At 1900-2300degC reduction to obtain block of TiC is performed, followed by pulverization for titanium carbide product. Carbon black or sponge titanium can be used as the raw material. The sponge titanium, titanium alloy (or waste titanium recovered from carbide solution), and carbon are then mixed together and heated in high-purity hydrogen streams to 1500-1700degC.
Direct carbonization of Titanium Metal:
The carbon is then infiltrated with a high-purity stream of hydrogen. The reaction temperature, holding time and particle size are dependent on the raw material.
Gas phase reaction method:
Hydrocarbons containing hydrogen (benzene and methane) are mixed into the steam of titanium chloride. After induction heating (or other methods), the steam is sent to deposit titanium carbide on the substrate. The reaction precipitates titania carbide on substrate. Different reaction conditions (such as reaction temperature, gas concentration ratio and gas flow rate) and different precipitated forms of titanium carbide are observed.
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