Speaker
Description
Macroporous ceramics are interesting for a wide range of applications, including catalysis, sensing, photonics, biomedicine, and energy conversion. Many applications require materials that retain their intricate porous architecture at high temperatures, where sintering-related transformations can otherwise degrade structural integrity and functionality. In this talk, I will present metal-oxide isoporous multiscale ceramic structures fabricated via atomic layer deposition (ALD) and their response to thermal exposure. Discrete element method (DEM) and finite element method (FEM) simulations is used to explain the structural evolution and mechanical response of highly-porous Al₂O₃ structures. Our findings reveal that the pore size distribution and volumetric arrangement critically influence thermal deformation, with a complex interplay between geometric parameters and mechanical performance. Building on these insights, we demonstrate the fabrication of thermally robust ZrO₂–Al₂O₃ and SiO₂–Al₂O₃ macroporous systems. Their enhanced resistance to sintering, phase stabilization, and suppression of grain coarsening are attributed to the combined effects of nanoscale structuring and the uniform phase distribution achieved through ALD super-cycling. This approach establishes a pathway toward designing next-generation macroporous ceramics with exceptional thermal and mechanical stability for advanced functional applications.
| Professional Status of the Speaker | Senior Scientist |
|---|---|
| Invitation letter for visa | No |
| Interest in submitting a paper in a special issue of | No interest |
