Introduction to Titanium Nitride

Titanium nitride (TiN) is an extremely hard ceramic material that can be applied as a thin coating to various substrates and components. It is formed through a chemical vapor deposition (CVD) process where titanium and nitrogen react under vacuum to create a strong bond between the coating and substrate materials. TiN coatings offer several advantages over other coating types due to their unique properties.

Properties of Titanium Nitride

Titanium Nitride Coating has a goldish color and hardness comparable to diamonds, rating 9 on the Mohs hardness scale. It is highly resistant to corrosion from acids, alkalis and chemicals. The coating is extremely durable, able to withstand high pressures and temperatures. TiN has low friction properties and is very stable against heat or wear. It can lower friction coefficients by up to 50% compared to uncoated counterparts. The low friction allows components to move smoothly while reducing wear.

Application of Titanium Nitride Coatings

Due to the advantageous physical properties, TiN coatings find wide industrial uses. They are commonly applied to machining tools like drill bits, end mills, taps and reamers to extend tool life. The hard wear resistant layer protects cutting edges and allows clean sharp features to be machined. TiN coatings on metal forming dies help reduce friction and wear. This improves part quality and increases die life significantly.

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