About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Advances in Powder and Ceramic Materials Science
|
Presentation Title |
Energy Efficient Spark Plasma Sintering Fabricating Transparent Alumina |
Author(s) |
Eugene Olevsky, CheolWoo Park, Elisa Torresani, Chris Haines |
On-Site Speaker (Planned) |
Eugene Olevsky |
Abstract Scope |
In this study, spark plasma sintering (SPS) technology with three configurations -one traditional and two different energy efficient- was used to produce transparent alumina. The results in terms of sample properties and energy saving were analyzed and compared. In an energy efficient configuration involving a boron nitride coated graphite foil, the power used during the SPS process significantly decreases, but cracks appear in most samples. A new energy efficient configuration was capable of preventing the crack formation, achieving specimens’ full densification and uniform transparency in alumina. Also, the new method reduces energy consumption compared to the traditional SPS configuration. The developed method has the potential for fabricating transparent ceramic of various materials with uniform transparency. The conducted studies include the development of a model, based on the continuum theory of sintering, that can predict the density and grain growth evolution during the sintering process. |
Proceedings Inclusion? |
Planned: |