Medthin™ 11 TiNbN

A possible alternative to TiN - in line with existing predicates

Medthin 11 coating is known to reduce ion release from implant substrates materials such as CoCr, SS or TAV. The coating is applied with thickness of about 5µm and it has adhesion strength to metal substrates higher than 1.0GPa leading to an  improved abrasion resistance when compared with uncoated CoCrMo. Titanium Niobium Nitride (TiNbN) is deposited with latest generation Ionbond technologies showing a polycrystalline cubic structure with a fine and very dense structure, roughness (Ra) values below 0.05µm, ideal for articulating zones.  The coating coverage is rather uniform on external surfaces whereas for inner surfaces a Ionbond proprietary technology can be applied in some cases.  

Ionbond  can currently deliver coating service ”me too” of “Medthin 11 TiNbN on Implants” from Europe and Asia using large coating chambers at attractive prices.

Technical data



Titanium Niobium Nitride

Applicable on following implant material

Titanium, TAV, CoCrMo, 316 LVM, all SS


PVD arc or sputtering



Thickness, μm

Hardness, GPa

24 to 27

Phase composition

Cubic, polycrystalline

Surface texture, Ra


Coating coverage

Mainly external surfaces

Masking partial zones or over porous coat



Not noticed in serum

Adhesion strenght, MPa


Wear (abrasion) resistance, coating against UHMWPE


Porosity density, n/mm² & pore size, μm

PVD Arc (<500, 1)²

Reduction of allergic potential (CoCrMo, FeCrNi)


Surface wettability of TiNbN

Similar to mirror polished CoCrMo

Thermal oxidation resistance (in air)


Chemical oxidation resistance

Resistant to PH>7, weaker in peroxide solutions PH<7

Resistance to sterilization

All methods allowed

Implant applications

Othopaedic, spine & trauma

¹other coating thicknesses are possible under request
²pores are not through coating thickness. Few pores through coating thickness may occur in PVD arc