@inproceedings{294b4bb504144b57b5a4ef250f6c5e61,
title = "Multi-Purpose Additives Towards Improving the Polymer Cold Spray Process",
abstract = "Polymers have proven to be challenging to cold spray, particularly with high efficiency and quality when using inexpensive nitrogen (N2) and air propellants. Helium (He) when used as a process propellant can improve spray deposit properties but is often undesirable due to its limited availability and high cost. In this study, additives of multiple particle sizes and materials were mixed with polymer powder in an effort to improve the performance of polymer sprays using mainly N2 as a process propellant. The effects of additives on deposit microstructure were investigated by precise ion-beam polishing of deposit cross sections and subsequent electron microscope imaging. Additional metrics including the density and post-spray composition of deposits were investigated to quantify the peening effect and the amountof embedded additive. Additives, regardless of size, were observed to embed in the spray deposits. Additionally, hard-phase additives demonstrated nozzle-cleaning properties that continually remove polymer fouling on the nozzle walls. Inversely, sprays with polymer powder and no additives tended to clog the nozzle throat and diverging section as a result of continualfouling.",
author = "Bacha, \{Tristan W.\} and Haas, \{Francis M.\} and Stanzione, \{Joseph F.\}",
note = "Publisher Copyright: Copyright {\textcopyright} 2023 ASM International{\textregistered} All rights reserved.; 2023 International Thermal Spray Conference and Exposition, ITSC 2023 ; Conference date: 22-05-2023 Through 25-05-2023",
year = "2023",
doi = "10.31399/asm.cp.itsc2023p0273",
language = "English (US)",
series = "International Thermal Spray Conference and Exposition: Next-Generation Thermal Spraying for Future Surfaces, ITSC 2023 - Conference Proceedings",
publisher = "ASM International",
pages = "272--278",
editor = "Fardad Azarmi and X. Chen and J. Cizek and Jazi, \{H. Salimi\} and H. Koivuluoto and Y. Lau and R. Ortiz-Fernandez and Ozdemir, \{Ozan C.\} and F. Toma and J. Veilleux and H. Che",
booktitle = "International Thermal Spray Conference and Exposition",
address = "United States",
}