The Properties And Application of Titanium nitride


Aug 31, 2023

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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. The TiN powder has a yellowish-brown color, while ultrafine powders are black and the TiN crystals have a golden yellow colour. TiN has an excellent thermal shock resistance, a melting temp of 2950degC and a density of 5-4.44g/cm3. TiN has a much higher melting temperature than most of the transition metal Nitrides. However, it also has a lower density. This makes TiN a heat-resistant metal. The TiN crystal 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 or N2 atmospheres. It can be used with alkaline or acidic slag. 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 a superconductivity, high electrical conductivity, and can be applied in structural materials that are high temperature. It is also superconducting material.

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