About this Abstract |
Meeting |
2021 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2021)
|
Symposium
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Poster Session
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Presentation Title |
Effect of Impact Angle on Deposition of LiNbO3 films by Micro-cold Spray |
Author(s) |
Stephen G. Bierschenk, Michael Becker, Susanne Lee, Desiderio Kovar |
On-Site Speaker (Planned) |
Stephen G. Bierschenk |
Abstract Scope |
Micro-cold spray is the process of accelerating solid nanoparticles through a nozzle and impacting them at high velocity onto a substrate to deposit nanostructured films. By moving the substrate beneath the fixed nozzle, patterned films of metals and ceramics can be deposited at room temperature without a mask. Experiments conducted with direct axial impact of LiNbO3 nanoparticles result in amorphous films that are limited to thicknesses of 10 µm because the deposition efficiency decreases with film thickness. Experimentally, the radial velocity can be controlled by varying the substrate angle up to 60° from the axial position. We have performed complimentary multi-physics modeling to determine the range of impact angles and velocities that particles experience for these experiments. The effects of radial impact velocity of the nanoparticles on the resulting film deposition efficiency and film morphology will be discussed. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |