Gyroid ceramic cellular filter using an additively-manufactured sacrificial mold toward off-gas management

Abstract

We report a method that uses an additively-manufactured sacrificial mold to fabricate ceramic cellular structures that have a gyroid geometry. The mold has a complex periodic architecture, and was produced by additive manufacturing that applies fused deposition modelling, then a ceramic slurry was infiltrated into its cavity by centrifugation. This approach enables fabrication of geometrically-elaborate ceramic shapes such as gyroid by using low-cost and accessible equipment. The resulting gyroid filter had good mechanical integrity and good ability to capture gaseous cesium. The proposed method allows structural optimization of the filter, and tunable capture characteristics.