About this Abstract |
Meeting |
2025 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2025)
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Symposium
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2025 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2025)
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Presentation Title |
Thermal Monitoring in AC Selective Laser Flash Sintering of Ceramics Using a Mid-Wave Infrared Photodiode |
Author(s) |
Joey A. Zamora, Desiderio Kovar, Joseph J. Beaman |
On-Site Speaker (Planned) |
Joey A. Zamora |
Abstract Scope |
Selective Laser Flash Sintering (SLFS) is an emerging technique for binder-free additive manufacturing of ceramics. Central to its repeatability is the ability to detect and interrupt the flash event before thermal runaway or material failure occurs. Building on previous work exploring high-speed cameras, this study advances the sensing strategy by integrating a mid-wave infrared (MWIR) photodiode for real-time, non-contact thermal monitoring. Positioned coaxially with the laser path, the photodiode captures rapid thermal events at sub-millimeter resolution during layer-by-layer sintering under alternating electric fields. This sensing technique provides new insight into the dynamic thermal environment of SLFS and represents a significant step toward closed-loop process control for the automation of high-quality ceramic parts. |
Proceedings Inclusion? |
Planned: Post-meeting proceedings |