About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing of Ceramic-Based Materials: Process Development, Materials, Process Optimization and Applications
|
| Presentation Title |
Mitigating Sintering-Induced defects in Additively Manufactured Silica-Based Ceramics Through Optimized Debinding and Sintering Approaches |
| Author(s) |
Jihyeon Kim, Dana Mcgraw Dattelbaum, Arthur Charrue, Yohann Scaringella, Denis Rochais, Philippe Belleville, Kwan-Soo Lee |
| On-Site Speaker (Planned) |
Jihyeon Kim |
| Abstract Scope |
Additive manufacturing enables the fabrication of architected silica-based ceramic lattices, yet sintering-induced defects often compromise dimensional stability and mechanical performance. This study optimizes debinding and sintering strategies to mitigate cracks and delaminations, with particular focus on binding profile design. Shrinkage behavior, density evolution, and compressive strength were systematically evaluated across three lattice geometries—simple cubic (SC), body-centered cubic (BCC), and gyroid (G). Binding profiles were tailored by varying holding times, ramp rates, and atmospheric conditions to isolate individual variable effects on microstructural development and mechanical response. Results show that optimized profiles enhance densification uniformity, and improve compressive performance, though sensitivities differ with geometry. These findings establish clear processing–structure–property correlations and inform effective defect mitigation strategies for additively manufactured silica ceramics. |