About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
|
Symposium
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2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
|
Presentation Title |
Single Particle Impacts in Micro Cold Spray |
Author(s) |
Aidan Moyers, Michael Becker, Desiderio Kovar |
On-Site Speaker (Planned) |
Aidan Moyers |
Abstract Scope |
Micro-cold spray (MCS) is a direct-write process that can produce patterned thick ceramic films (1-100 μm) onto a wide variety of substrates through repeated high velocity impacts of sub-micron particles. Thick films of yttria (Y2O3) have applications as protective barriers against highly aggressive environments, such as plasma etching chambers or mold coatings for reactive metal castings, yet are difficult to manufacture through other techniques. However, the deformation mechanisms active within individual particle impacts are poorly understood, and as a result, the processing window of MCS is difficult to predict. This study seeks to experimentally analyze individual particle impacts over a wide range of particle sizes, using electron microscopy coupled with aerodynamic modeling to predict impact velocity based on input process variables. Trends in these behaviors were analyzed and used to understand which processing conditions produce high quality films. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |