| Abstract Scope |
The recent development of flash sintering and ultrafast high-temperature sintering (UHS) has renewed research interest in the impact of rapid heating on the microstructural evolution of ceramics during sintering. While this was a traditional problem, the current research context introduced a few new perspectives.
This presentation reviews the interactions among rapid heating, densification kinetics, and microstructural evolution in oxides, with a specific focus on UHS and YSZ. Particular emphasis is dedicated to the new developments standing beyond the traditional concepts and research questions developed during the last half of the past century.
- UHS, flash sintering, and flash SPS allow heating rates not achievable by conventional fast firing as well as sintering at ultra-high temperatures. The densification mechanisms can be heavily influenced, touching new concepts regarding grain boundary metastability and complexions.
- Nowadays, rapid sintering develops in a context dominated by novel shaping tools like additive manufacturing. What are the limitations? Is rapid debinding possible? How does the carbon deposition originating from the binder burnout change the oxide consolidation?
- The rapid sintering tools can be integrated with highly reactive nanopowders and various shaping technologies. What is the effect of the particle size and shaping tools on rapid densification? |