The Properties And Application of Titanium nitride

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Titanium Nitride (TiN), a non-stoichiometric compound, has a structure similar to NaCl. It is a face-centered cube with a lattice of a=0.4241nm. The titanium atoms can be found at the corners tops. TiN has a nonstoichiometric composition, which is TiN0.37 – TiN1.16. Changes in nitrogen content are possible within a specified range without altering the structure of TiN. TiN powders are usually yellowish-brown, ultrafine powders are black and TiN crystalline forms are golden yellow. TiN has an excellent thermal shock resistance, a melting temp of 2950degC and a density of 5-4.44g/cm3. TiN is more heat-resistant than other transition metals because of its higher melting point. The TiN crystalline structure is very similar to TiC. However, the N atoms are used instead of C atoms.
Nature introduction

TiN is an extremely stable compound. It will not reacted with metals, such as iron and chromium at high temperature. Also, TiN crucibles won’t react with acidic Slag in CO and N2 atmospheres. TiN is a very stable compound that is not reactive with metals such as iron, chromium, calcium and magnesium at high temperatures. It can also be used in conjunction with alkaline-slag to study the interactions between molten steeel and certain elements. TiN, when heated under vacuum, loses nitrogen and becomes titanium nitride that has a lower nitrogen content.

TiN has a beautiful golden color. It also has a very high melting temperature, possesses exemplary chemical stability, and is not wettable to metals. It has high superconductivity, high electrical conductivity, and can be applied in structural materials that are high temperature. It is also superconducting material.

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