About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
2026 Technical Division Student Poster Contest
|
| Presentation Title |
SPG-87: High Strain Rate Driven Phase Evolution and Deformation in Pristine Two-Dimensional Boron Nitride During Cold Spray Deposition |
| Author(s) |
Rony Thomas Murickan, Denny John, Anil Lama, Aleksandar Aleman, Tyler Dolmetsch, Tanaji Paul |
| On-Site Speaker (Planned) |
Rony Thomas Murickan |
| Abstract Scope |
Two-dimensional (2D) materials such as boron nitride nanoplatelets (BNNPs) are predominantly used as reinforcements, while their potential as large-scale pristine coatings remains unexplored due to the absence of scalable, low-damage deposition routes. This work demonstrates cold spray as a solid-state, high-strain-rate processing pathway for depositing pristine BNNPs for potential multifunctional applications. Micron-scale BNNPs (~7 µm) were cold sprayed onto aluminum using nitrogen gas at 500°C and 120 psi, producing ~237µm thick coatings. Microstructure revealed shear-induced platelet flattening and in-plane fragmentation, with needle-like BNNPs near the coating-substrate interface, indicative of extreme impact-driven deformation. This mechanically induced deformation activated structural defects, facilitating partial oxidation and turbostratic distortion without loss of hexagonal BN structure. By elucidating how extreme strain-rate impact enables thick consolidation through defect generation and phase evolution in BNNPs, this study establishes the mechanism of their solid-state bonding and positions cold spray as a viable manufacturing route for 2D-material coatings. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Other, Other, Other |