About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Surface Engineering IX
|
| Presentation Title |
Additive Manufacturing of Thick, Binder-Free 2D-Boron Nitride Nanoplatelet Deposits: Multiscale Mechanical and Tribological Assessment |
| Author(s) |
Rony Thomas Murickan, Denny John, Anil Lama, Alex Franco, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul |
| On-Site Speaker (Planned) |
Rony Thomas Murickan |
| Abstract Scope |
Developing thick, binder-free deposits of pristine two-dimensional (2D) materials by additive manufacturing, while retaining their intrinsic structure-dependent properties, remains a significant challenge. 2D Boron nitride nanoplatelets (BNNPs) offer mechanical robustness, low friction, and wear resistance due to their layered structure, making them attractive for structural and protective coatings. In this work, pristine micron-scale BNNP powder (~7.5 µm) was cold sprayed into an aluminum substrate, producing a ~237 µm thick binder-free deposit that preserved its properties. This high-velocity, solid-state process induces brittle-to-ductile transition, enabling plastic deformation and mechanochemical activation that drives BNNP platelet densification and consolidation. Mechanical and tribological behavior of the deposit was evaluated across multiple length scales. Indentation probed microstructural evolution and local mechanical response, while scratch testing quantified frictional force and coefficient of friction to assess tribological performance. These findings establish cold spray as a viable route for thick, binder-free 2D BNNP deposits for structural and protective applications. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Surface Modification and Coatings, |