| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing of Ceramic-based Materials: Process Development, Materials, Process Optimization and Applications
|
| Presentation Title |
A-13: Evaluation of Reliability of Using Combined Rheological Methods for the Development of Ceramic Materials for 3D Printing |
| Author(s) |
Francisco Jordão Nones de Lima, Heitor Montefusco Bernardo, Valdecir Angelo Quarcioni, Roberto Cesar de Oliveira Romano, Rafael Giuliano Pileggi |
| On-Site Speaker (Planned) |
Roberto Cesar de Oliveira Romano |
| Abstract Scope |
Ceramic 3D-printing is a computer-controlled additive manufacturing process in which material is extruded through a nozzle and deposited layer-by-layer to build products with defined properties according to desired geometric complexity and performance. The synergism between the fresh product and the 3D-printer is one of the most important stages of production. So, the development of printable ceramics needs to consider the adequate rheology of pastes. Yield stress, viscosity, viscoelasticity, and thixotropy, are some properties that must be correctly monitored. In this work, four extrudable clays were evaluated, as received, using the Benbow-Bridgwater, squeeze flow, and oscillatory rheometry methods. After that, the clays were printed in a Scara V4 3D printer, and the qualitative aspects of products were evaluated. The results obtained allowed us to correlate the rheological parameters and the quality of products, being possible to obtain a rheological profile to follow for the development of compositions made by different materials. |