| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
2024 Graduate Student Poster Contest
|
| Presentation Title |
SPG-18: Effect of Light on the Coarsening Characteristics of Yttria-Stabilized Zirconia Ceramics Synthesized by the Modified Pechini Process |
| Author(s) |
Mst Sharmin Mostari, Ricardo H.R. Castro |
| On-Site Speaker (Planned) |
Mst Sharmin Mostari |
| Abstract Scope |
Yttria-stabilized zirconia (YSZ) nanoceramics are of particular interest as solid electrolytes and thermal barrier coatings, but they require a high sintering temperature (~1350°C) to achieve superhigh density. This study explores light-assisted coarsening of YSZ ceramics to enhance energy efficiency by leveraging precise control of thermal and chemical effects. More specifically, the impact of ultraviolet (UV) light on the coarsening of 10YSZ (Mn: 0-2 mol%) has been demonstrated in this work. YSZ ceramics were synthesized using the modified Pechini process, followed by UV-light-exposed coarsening. X-ray Diffraction, X-ray Photoelectron Spectroscopy, and Transmission Electron Microscopy were integrated to evaluate the light-effect on the crystallite size and the sinterability of YSZ ceramics. This effect is attributed to changes in the oxidation state of manganese, which influence both thermodynamic and kinetic properties in the system, translating to the potential of UV rays in optimizing sintering processes and improving material performance. |