| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Powder and Ceramic Materials Science
|
| Presentation Title |
Preparation of Rare Earth Stabilized Nanocrystalline Zirconia with Tunable Optical/mechanical Properties |
| Author(s) |
Gottlieb Uahengo, Javier Garay, Yasuhiro Kodera |
| On-Site Speaker (Planned) |
Gottlieb Uahengo |
| Abstract Scope |
We present a systematic study investigating rare-earth dopant type and dopant concentrations effects on crystal phase compositions of zirconium dioxide (ZrO2) and the respective bulk mechanical and optical properties. Zirconium dioxide, a traditional structural ceramic possesses excellent mechanical properties, while simultaneously possessing a wide band gap (5-7eV). This combination of properties opens the door towards the design and fabrication of transparent (functionalized) structural ceramics. We use Current-Assisted Pressure Activated Densification (CAPAD), to achieve high heating rates, and comparatively short hold-times, which leads to ceramics with fine grain sizes. This affords the opportunity to investigate, the effects of dopant type and dopant concentration resultant microstructure (grain size, phases and phase ratios). We will discuss how the understanding of the interplay between bulk mechanical and optical properties can lead to a structural ceramic with tunable optical and mechanical properties. |
| Proceedings Inclusion? |
Planned: |