Medthin™ 42 DLC
Probably the best (hard) coating for implants
Medthin™ 42 coating combines high adhesion strength with low UHMWPE wear and nearly no ion release from the implant substrate reaches the body fluids from the patient. The coating is applied with thickness of about 5µm and it has adhesion strength to metal substrates higher than 1.5GPa. Chromium Nitride + Diamond Like Carbon (top layer) for implants, is deposited with an hybrid system, a combination of PVD high energy sputtering and Plasma Assisted Chemical Vapor Deposition Technologies (PACVD). The top layer is amorphous and has excellent sliding characteristics with extremely low friction coefficients against many materials including ceramic.
The coating coverage is rather uniform on external surfaces. Ionbond can currently deliver coating service of “Medthin™ 42 DLC on Implants” from America, Europe and Asia.
Technical data |
|
|---|---|
Material |
Top layer: hydrogenated amorphous carbon (a-C:H) Base Layer: Chrom.-Nitride |
Applicable on following implant material |
Titanium, TAV, CoCrMo, 316 LVM, all SS |
Technologies |
PACVD |
Color |
Black |
Thickness, μm |
5² |
Hardness, GPa |
25 to 30 |
Phase composition |
Polycrystalline (CrN) and Amorphous (DLC) |
Surface texture, Ra |
<0.02 |
Coating coverage |
Mainly external surfaces³ |
Masking partial zones or over porous coat |
Possible |
Dissolvability |
Not noticed in serum |
Adhesion strenght, MPa |
>1500 |
Wear (abrasion) resistance, coating against UHMWPE |
>80% |
Porosity density, n/mm² & pore size, μm |
PACVD (<50, 0.5)⁴ |
Reduction of allergic potential (CoCrMo, FeCrNi) |
>99% |
Surface wettability of DLC |
Extremely hydrophobic |
Thermal oxidation resistance (in air) |
300°C |
Chemical oxidation resistance |
Very good resistant to PH from 4 to 12 without problems |
Resistance to sterilization |
All methods allowed |
Implant applications |
Othopaedic, spine & trauma |