Titanium Nitride is about 85 on the Rockwell C hardness scale. It is a
pretty gold color too.
When you are selecting a hard surface coating, you should take the
substrate into consideration. Also think about what sort of
environment the coating will be exposed to.
firstname.lastname@example.org (Deang) wrote in message
This is a pretty lame question. It is analagous to asking Motortrend
which is the best motor vehicle on the road without specifying you
want a truck, car, SUV or the like.
As pointed out by Aaron, TiN is used quite extensively in the
manufacture of drill bits, however, zirconium nitride (ZrN) is
starting to see more use in this area with slightly better hardness
and lubricity. Of course if money/cost is not an issue CVD diamond is
quite impressive and there are myriad of other more exotic surface
If you want a better answer, you need to specify the substrate and
It is materials (can be metals or organic compounds) that mixed with fine
diamond powder. So, it can be in the forms of bulk, film, or coatings. One
of the applications is the diamond dies used in drawing process of metal
wire in wire and cable industry.
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