About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing of Polymeric-Based Materials: Potentials and Challenges
|
| Presentation Title |
Polymer Gas Atomization: A Novel Approach to Powder Production for Additive Manufacturing |
| Author(s) |
Abigail Stanlick, Jordan Tiarks, Boyce Chang, Iver Anderson |
| On-Site Speaker (Planned) |
Abigail Stanlick |
| Abstract Scope |
Additive manufacturing, particularly powder-based polymer AM, is a constantly growing field. However, the current library of widely available polymer powder feedstocks is limited, largely due to the difficulty in producing quality powders from many polymers. Current powder production methods are often time-intensive and low-yield, including cryogenic ball milling and solvent deposition. Along with long processing times and low yields, these methods often produce irregularly shaped powders, making them difficult to use effectively in AM equipment. Experience with metal powder production shows gas atomization is a potential solution for producing consistent spherical powders. Gas atomization has already been applied to very low molecular weight, waxy-solid polymers with promising results. This presentation expands on applying gas atomization to commercially applicable semicrystalline polymer systems with significantly higher molecular weights, and the unique challenges that polymer systems bring to the gas atomization process. Work performed through Ames National Laboratory contract no.DE-AC02-07CH11358. |