Recent findings suggest that certain Diamond-Like Carbon (DLC) coatings exhibit improved performance when subjected to sub-ambient temperatures. This observation is based on ramped load scratch tests conducted on a composite DLC coating at varying temperatures, as depicted in the accompanying image.
The results are compelling: as the temperature of the sample decreases, the volume of material removed from the surface during the test significantly reduces. The wear track at sub-ambient temperatures is notably shallower compared to those at room temperature. Additionally, the coating shows greater resistance to cracking in cooler conditions.
This enhanced performance at lower temperatures is particularly significant as it indicates that this DLC coating, commonly used to improve wear resistance, could offer substantial benefits in a variety of demanding applications. Industries such as automotive, defence, and aerospace, where materials are often exposed to extreme conditions, could particularly benefit from this discovery.
For more detailed information about the scratch tests and the cold stage capabilities of the NanoTest instruments supplied by Micro Materials, please get in touch with us.