About this Abstract |
Meeting |
Materials Science & Technology 2020
|
Symposium
|
Controlled Synthesis, Processing, and Applications of Structural and Functional Nanomaterials
|
Presentation Title |
Light Transmission Modulation in Ceramics through Mesoscale Modelling |
Author(s) |
Lukasz Kuna, James Wollmershauser, John Mangeri, Boris Feigelson, Edward P. Gorzkowski, Serge Nakhmanson |
On-Site Speaker (Planned) |
Edward P. Gorzkowski |
Abstract Scope |
Mechanical property improvements by reducing the grain size is a well-known phenomenon called the Hall-Petch relationship. Advances in ceramic sintering processing has allowed the opportunity to explore the limits of those property improvements and re-evaluation of other grain size dependent phenomena, such as optical and dielectric properties. A novel modeling approach for simulating properties of polycrystalline ceramics with coupled optical, elastic and dielectric degrees of freedom has been developed at UConn, which allows for the determination of the dependency of optical properties on the microstructure, as well as temperature and action of externally applied electric fields and elastic strains. The computational approach can also predict the modulation of transmittance under applied stimuli, showing changes from full transparency to opacity in some cases. The results highlight a remarkable promise of functional nano- and micro-ceramics for a range of advanced engineering applications, including armor, multi-functional optics and metamaterials by design. |