It is Titanium Nitride, which is a really hard ceramic material. It is usually used for coating on titanium alloys, steel, carbide, and aluminium components. it is applied as a thin coating on these materials.
It is an extremely thick hard ceramic material. Sometimes it used to coat titanium alloys, steel, carbide and aluminum. It is also used to protect surfaces that are used for cutting and sliding. Great for decorative purposes and is non-toxic. It has also been used as an exterior shell for medical implants.
