CVD Amorphous CrR
In development
- Low temperature process (<400°C)
- Non line-of-sight process
- High corrosion and water resistance
- Coating thickness from 1-50+μm


Uniformity on Complex Geometry
a-CrC Corrosion Resistance
0 hours testing 423 hours testing

Immersion corrosion testing per ASTM G31
No coating
Yellow solution = FeCl2Crystalline CrC
Green solution = CrCl3Amorphous CrC
Clear solution
Sample | Weight loss (g) |
---|---|
Uncoated | 0.0300 |
Crystalline CrC | 0.0550 |
Amorphous CrC | <0.0005 |
Uncoated: dark corroded surface DLC (8 μm): 5-10% surface pitting a-CrC (2 μm): No visible pits; low mass loss a-CrC + DLC: No visible pits; no mass loss
The images below show results after 18 hrs.
Sample | Weight loss (mg) | |
---|---|---|
30 min | 18 hrs | |
Uncoated | 2.5 | 44.0 |
DLC (8 μm) | 0 | 16.9 |
a-CrC (2 μm) | 0 | 1.4 |
a-CrC (2 μm) + DLC (8 μm) | 0 | 0 |