| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Thin Films and Coatings: Properties, Processing and Applications
|
| Presentation Title |
Carbon Nanotube Coating for Tribological and Thermal Applications |
| Author(s) |
Chanaka Kumara, Michael Lance, Hsin Wang, Jun Qu |
| On-Site Speaker (Planned) |
Chanaka Kumara |
| Abstract Scope |
A coating is utilized to protect or enhance the properties of the substrates. We have developed a coating composed of carbon nanotubes (CNT) on steel substrates using self-catalyst chemical vapor deposition (CVD). The CVD conditions were optimized for the desired CNT surface coverage and length. A thin layer of CNT coating alters the steel surface from hydrophilic to superhydrophobic while improving oil wettability. The superhydrophobicity of the CNT coating is useful in moisture mitigation, whereas oleophilicity attracts and retains oil. The CNT coating exhibits a superlubricity performance or nearly frictionless sliding (Coefficient of Friction less than 0.01) when sliding under minimum quantity lubrication and shows no signs of wear. Moreover, the superlubricity performance has demonstrated strong sustainability over half-million cycles of sliding and a robust ability to adapt to changes in sliding conditions. CNT-coated steel demonstrates higher thermal conductivity than the uncoated substrate, making it suitable for heat transfer applications. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nanotechnology, Surface Modification and Coatings, Thin Films and Interfaces |