About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Thin Films and Coatings: Properties, Processing and Applications
|
| Presentation Title |
Engineering Multifunctional Carbon Nanotube Coatings for Superlubricity, Superhydrophobicity, and Thermal Management |
| Author(s) |
Seokhoon Jang, Chanaka Kumara, Michael Lance, Hsin Wang, Jun Qu |
| On-Site Speaker (Planned) |
Seokhoon Jang |
| Abstract Scope |
This talk presents the fabrication of carbon nanotube (CNT) coatings vertically grown on stainless steel (SS) disks and radially aligned on SS meshes via chemical vapor deposition (CVD), using a self-catalytic surface layer without added catalysts. Surface characterization, including SEM, TEM, and Raman, confirms the formation of CNT, identifies optimal synthesis conditions, and reveals locally different graphitic structures. These are correlated with enhanced interfacial properties: superlubricity (coefficient of friction < 0.01), oleophilicity, and high thermal conductivity. TEM and Raman analyses show that shear-induced graphitic tribofilms retained at the interface reduce shear resistance, frictional energy loss ,and wear, supporting CNT coatings as effective solid lubricants in oil-lubricated systems. Additionally, the oleophilic CNT-coated meshes enable efficient oil–water separation, suitable for liquid filtration and organic impurity removal. The conjugated carbon network also improves interfacial heat transfer at metallic contacts (e.g., SS–SS), suggesting applications in thermal management for mechanical systems. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Thin Films and Interfaces, Surface Modification and Coatings, Mechanical Properties |