| About this Abstract |
| Meeting |
MS&T23: Materials Science & Technology
|
| Symposium
|
Controlled Synthesis, Processing, and Applications of Structural and Functional Nanomaterials
|
| Presentation Title |
Microstructure and Micromechanical Behavior of Flash-sintered TiO2 |
| Author(s) |
Xinghang Zhang, Bo Yang, Haiyan Wang |
| On-Site Speaker (Planned) |
Xinghang Zhang |
| Abstract Scope |
Recent studies show that flash-sintering can introduce various types of defects in ceramics. In this presentation, we will review several examples where the electric field and incubation change the microstructures of flash-sintered nanostructured TiO2. DC flash-sintered TiO2 exhibits asymmetrical distributions of grain sizes and defects, whereas AC sintered TiO2 has more homogeneous microstructures. Furthermore, a reverse-polarity facilitated flash sintering technique can achieve homogeneous microstructure and tunable defect gradient. The incubation is also important in tailoring the types of defects in flash-sintered ceramics. We will also discuss the impact of defects on mechanical behavior of flash-sintered TiO2 probed by in situ micropillar compression technique at various temperatures. |