| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Thin Films and Coatings: Properties, Processing and Applications
|
| Presentation Title |
A Plasma Diagnostic Based Approach to Accelerate the Process Development of High Performance MoS2 |
| Author(s) |
Alex Mings, Steven R Larson, Tomas F Babuska, Michael T Dugger, Frank W DelRio, Mark Rodriguez, Robert Kolasinski, John Curry |
| On-Site Speaker (Planned) |
Alex Mings |
| Abstract Scope |
Sputter deposited MoS2 coatings have long been utilized as dry lubricants for aerospace applications because of their ultra-low friction and high performance in vacuum. These films have struggled historically with low density, poor aging resistance, and inconsistent performance. Many of these issues stem from the extreme sensitivity of MoS2 material properties to plasma characteristics during deposition. To overcome these challenges, industry has resorted to doping MoS2 coatings with various metals and nonmetals which undesirably increases initial friction, particularly after aging. In this study we present using a modern, plasma diagnostic based approach to develop high performance undoped MoS2 coatings. With these methods, a direct correlation is made between deposition parameters, plasma characteristics and film tribological performance. Using these relationships, we sweep the process space for optimal plasma characteristics. The resulting undoped MoS2 coatings demonstrate a near bulk density, and maintain an ultra-low initial friction, both before and after aging. SAND2024-08092A |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Thin Films and Interfaces, Other, |