Titanium nitride (TiN) (sometimes accepted as “Tinite” or “TiNite” or “TiN”) is an acutely harder bowl material, generally acclimated as a blanket on titanium alloys, steel, carbide, and aluminium apparatus to advance the substrate’s apparent properties.
Applied as a attenuate coating, TiN is acclimated to amalgamate and assure acid and sliding surfaces, for adorning purposes (due to its gold appearance), and as a non-toxic exoteric for medical implants. In a lot of applications a blanket of beneath than 5 micrometres (0.00020 in) is applied.
Summary of characteristics
Vickers acerbity 18-21 GPa
Modulus of animation 251 GPa
Thermal application 19.2 W/(m·°C)
Thermal amplification accessory 9.35×10−6 K−1
Superconducting alteration temperature 5.6 K
Magnetic susceptibility +38×10−6 emu/mol
TiN will burn at 800 °C at accustomed atmosphere. It is chemically abiding at allowance temperature and is attacked by hot concentrated acids.
TiN has accomplished bittersweet (IR) reflectivity properties, absorption in a spectrum agnate to basal gold (Au), which gives it a bare color. Depending on the substrate actual and apparent finish, TiN will accept a accessory of abrasion alignment from 0.4 to 0.9 against itself (non-lubricated). Typical accumulation has a clear anatomy of NaCl-type with a almost 1:1 stoichiometry; about TiNx compounds with x alignment from 0.6 to 1.2 are thermodynamically stable.[3] A attenuate blur of titanium nitride was algid to abreast complete aught converting it into the aboriginal accepted superinsulator, with attrition al of a sudden added by a agency of 100,000.
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