About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
|
2020 Technical Division Student Poster Contest
|
Presentation Title |
SPG-42: Exploring the Structure-processing Relationship: Direct Ink Writing of Functionally Graded Carbides |
Author(s) |
Joshua Pelz, Nicholas Ku, Samuel Figueroa, Marc Meyers, Lionel Vargas Gonzalez |
On-Site Speaker (Planned) |
Joshua Pelz |
Abstract Scope |
Direct ink writing is explored as a processing technique to research and develop functionally graded carbide materials with improved mechanical properties for structural applications. This study identifies several key processing parameters that may be adjusted to tailor micro- and mesostructural features. The presented work utilizes a custom designed direct ink writing system with multi-material and in-line mixing capabilities for printing inks consisting of high solids-loaded, colloidal ceramic particulate slurries. The custom system has two modules, the print head and the feed system, and interfaces with a commercially-available, desktop 3D printer. The feed system inputs ink to the print head, which uses an auger to mix and extrude material from a single nozzle. Auger parameters such as length, thread pitch, and channel depth were adjusted to tune the shearing action in the print head. Effects on extrusion rate and mixedness were quantified through characterization of printed filaments and specimen cross-sections. |
Proceedings Inclusion? |
Undecided |