Speaker
Description
Flash sintering enables rapid ceramic densification at reduced furnace temperatures, but its use is limited by electrode degradation and scaling constraints. We present a contactless flash sintering (CFS) platform that replaces physical electrode with a plasma based charge transfer mechanism integrated with real time electrical control and robotic rastering. Tape cast coatings of 8YSZ, Y₂Si₂O₇, Al₂O₃, and ZrB₂ were selected to span a wide range of electrical and thermal properties. YSZ coatings show rapid densification and uniform microstructures under CFS. Y₂Si₂O₇ also densifies but develops cracks and isolated voids after full consolidation, potentially related to volatilization of silica rich phases; this mechanism remains under investigation. Al₂O₃ shows very limited flash induced densification under comparable conditions. An inert atmosphere configuration enables CFS of oxidation sensitive ceramics, and preliminary ZrB₂ flash sintering behavior will be presented. These results clarify material dependent responses in contactless flash sintering and support its extension to diverse ceramic systems.
| Professional Status of the Speaker | Senior Scientist |
|---|---|
| Invitation letter for visa | No |
| Interest in submitting a paper in a special issue of | Journal of the European Ceramic Society (Elsevier) |
