| About this Abstract |
| Meeting |
Materials Science & Technology 2020
|
| Symposium
|
Additive Manufacturing of Ceramics and Ceramic Composites: Materials Properties, Processes, and Modeling
|
| Presentation Title |
Mechanical Characterization of SLA Printed Silica Lattice Structures |
| Author(s) |
Bhargavi Mummareddy, Jose Gonzalo Carrillo-Baeza, Pedro Cortes |
| On-Site Speaker (Planned) |
Bhargavi Mummareddy |
| Abstract Scope |
Advancement in design and manufacturing is giving possibilities to build light-weight durable structural components. In the present work, StereoLithography was used to build lattice structures with silica ceramic resin. An octagon and rhombic dodecahedron unit cells were chosen for evaluation in this work. Print parameters such as point density, print direction and support structures were optimized. Sintering conditions to yield solid structures were investigated. A comparison between densities of bulk specimens and the cellular structure was performed to understand variation along the lattice the structure. Quasi-static and dynamic compressive strength with energy absorption were evaluated. Optical and SEM imaging of the specimen aided in understanding the fracture mechanisms. These light-weight cellular structures can be potentially employed for corrosion resistance, and high temperature applications. Future studies include transformation of the ceramic structures to form interpenetrating phase composites. This could possibly increase the applications into automobile, aerospace, composite tooling and refractory industries. |