About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing of Polymeric-based Materials: Potentials and Challenges
|
| Presentation Title |
Recent Advances in Gas Atomization Processing of Polymer Powders for AM |
| Author(s) |
Abigail Stanlick, Jordan Tiarks, Iver Anderson |
| On-Site Speaker (Planned) |
Abigail Stanlick |
| Abstract Scope |
The portfolio of polymer types available for additive manufacturing (AM) applications continues to grow to meet the demands of emerging applications. However, many high-performance polymers are unavailable for AM due to unique processing constraints, including high melting temperatures and temperature dependence of melt viscosities. Current methods for producing high molecular weight polymer powders include cryogenic ball milling and solvent deposition. However, these methods typically produce irregularly shaped powders that require flow additives or yield small quantities of powder from limited polymer types, making them less suitable for use in AM. Gas atomization is a promising process for generating spherical powder feedstocks, as has been demonstrated for metal powder synthesis, and could be used to produce spherical powders of various thermoplastic polymers. This presentation will dive into the current state of research on applying gas atomization to prepare spherical polymer powders. Work performed through Ames National Laboratory contract no. DE-AC02-07CH11358. |