TITANIUM CARBIDE NANOPARTICLE (TiC)
Titanium Carbide Nanoparticle: Scientific research on nanoparticles has discovered the most unexpected behavior of elements by altering their atomic and molecular states. These unexpected properties have found a variety of applications in fields such as biomedicine, pharmaceuticals, electronics and optics etc. This article deals with the properties and applications of titanium carbide nanoparticles.
Titanium carbide, (TiC) is an extremely hard (Mohs 9-9.5) refractory ceramic material, similar to tungsten carbide. It has the appearance of black powder with the sodium chloride (face-centered cubic) crystal structure. It occurs in nature as a form of the very rare mineral khamrabaevite. Titanium carbide is used in preparation of cermets, which are frequently used to machine steel materials at high cutting speed. It is also used as an abrasion-resistant surface coating on metal parts, such as tool bits and watch mechanisms. Titanium carbide is also used as a heat shield coating for atmospheric entry of spacecraft.
Titanium carbide is a synthetic, super-hard, high-melting and heat-resistant material which is widely used for manufacturing metal-working tools, protective coatings and carbide steel. Producing nanoscale titanium carbide allows new applications including different types of composite materials.
Titanium carbide nanoparticles (nano-TiC) is a typical transition metal carbide, which shows not only small size, distribution uniformity, specific surface area and high surface activity, but also high thermal stability, antioxidation, strength, hardness, nice thermal conductivity, toughness, electrical conductivity, and so on. Because of its advantages, TiC has been widely applied in biosensors, methanol electro oxidation, super capacitor, direct fuel cells, energy-related applications and also in many other fields.
Titanium carbide nanoparticles possess high purity, narrow range particle size distribution and larger specific surface area. Also, nano TiC has a good conductivity and chemical inert ability as compared to steel and iron. Its melting point is about 3160 °C. TiC nanoparticles are an essential component of cemented carbide with high hardness, corrosion resistance, thermal stability, etc. Also, it is often used in manufacturing of wear-resistant materials, cutting tools, mold, metal melting crucible and many other fields.
Properties of Titanium carbide nanoparticles:
Titanium Carbide (TiC) Nanoparticles, nanodots or nanopowder are black spherical high surface area particles. Nanoscale Titanium Carbide Particles are typically 10 – 100 nanometers (nm) with specific surface area (SSA) in the 100 – 130 m2 /g range. Nano Titanium Carbide Particles are also available in passivated, high purity, coated and dispersed forms.
|Molar Mass||59.89 g/mol|
|Melting Point||3160 °C|
|Boiling Point||4820 °C|
|Electronic config.||Titanium [Ar] 3d24s2
Carbon [He] 2s22p4
Titanium Carbide Nanoparticle: Applications
The application of nano materials in coating can improve the abrasion resistance, corrosion resistance and oxidative stability. A large amount of researches have proved that the application of silicon carbide nanopowder, Zirconium carbide nanoparticles, Titanium carbide nanopowder, Titanium nitride nanoparticles, Boron carbide nanopowder to the compound coating of metal can give super abrasion resistance and self-lubrication. Its abrasion resistance is 100 times higher than bearing steel, friction coefficient being 0.06~0.1, and meanwhile it is also equipped with high-temperature stability and abrasion resistance. The application of nano technology to the key parts of engineer of liquid rocket can largely lengthen the service life of these parts.
Nano TiC is used in manufacturing of wear-resistant materials like cutting tools, mold and metal melting crucible etc. Application of Nano TiC can be used in powder metallurgy industry to produce ceramics, hard alloy spare parts, drawing die and hard alloy mold. Also, Nano titanium carbide ceramic is a good optical material. TiC nanopowder coating can improve the alloy, abrasive steel bearings, nozzles, cutting tools wear resistance. Titanium carbide nanoparticles can be used in abrasive and mold industry to replace Aluminum oxide, silicon carbide, boride silicon and chromic oxide. Its grinding capacity is as good as artificial diamond. TiC is highly conductive in nature so it is also used to enhance the conductivity of materials and as a nucleating agent.
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