About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Advances in Powder and Ceramic Materials Science
|
Presentation Title |
N-3: Mechanical Behavior of Milli-Scale AM Metallic Lattice Structures as Reinforcement for Ceramic Matrix Composites |
Author(s) |
Catherine Barrie, Dajie Zhang, Steven Storck, Gianna Valentino, Don King, Kevin Hemker |
On-Site Speaker (Planned) |
Catherine Barrie |
Abstract Scope |
Traditional ceramic matrix composites (CMCs) offer high temperature capabilities with increased toughness, but few take full advantage of the mechanical benefits that continuous multi-dimensional reinforcements can provide. Additive manufacturing (AM) now makes the production of metallic lattice structures more feasible than ever before and embedding AM metallic lattices in a ceramic matrix allows one to create quasi-isotropic CMCs with relative ease. AM Inconel 718 BCC lattices were printed and imbedded in alumina and magnesia matrices. The mechanical response of these composites is being characterized with milli-scale tension and bending experiments coupled with digital image correlation (DIC) over a range of temperatures. DIC maps show complex local strains in individual lattice components, thus reinforcing the importance of geometry on these structures and the impact they have on the composite. Identifying the role of interfaces and the salient underlying failure mechanisms is key to the understanding of these materials. |
Proceedings Inclusion? |
Planned: |
Keywords |
Composites, Additive Manufacturing, High-Temperature Materials |