The typical NaCl structure of titanium nitride is TiN. This cubic has a lattice constant of a=0.4241 nanometer. Titanium atoms can be found at the corners. TiN is non-stoichiometric and has a stable composition range of TiN0.37–TiN1.16. It is possible to alter the nitrogen content of TiN within a specific range, but not cause structural changes. Ultrafine TiN powder can be yellowish brown and ultrafine TiN Powder is black. While TiN crystals may appear golden yellow, TiN powder can often turn yellowish. TiN’s melting point is 2950degC. It has a density range of 5.4-5.44g/cm3. A Mohs hardness between 8-9 and excellent thermal shock resistance. TiN’s melting point is higher than that of most transition-metal nitrides. However, it has a lower density than those transition metal nitrides. This makes TiN very heat resistant. TiN has a crystal structure similar to TiC but the C atoms are being replaced with N atoms.
TiN is stable and will not react to metals like iron, magnesium, chromium or calcium at high temperature. Also, TiN crucibles are not affected by acidic slag in CO and N2 atmospheres. Because it is compatible with alkaline, TiN crucibles are a good container to examine the interplay between molten and other elements. TiN’s nitrogen is lost when it is heated in a vacuum. The result is low-nitrogen titanium Nitride.
TiN’s attractive golden color is due to its high melting points, hardness and chemical stability. Also, it has low wettability with metals. This material can be used in high-temperature structures and has high superconductivity as well. It also has superconducting properties.
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