About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Ceramic Materials and Processing
|
| Presentation Title |
Synthesis of Yttrium Titanate Pyrochlore via Ball Milling for ODS Alloys with EDEM Simulation |
| Author(s) |
Seung Min Ha, Ertugrul Demir, Felipe Gutierrez Morales, Anish Ranjan, Xingshuo Zhang, Xiaochun Li, Haiming Wen, Enrique J. Lavernia |
| On-Site Speaker (Planned) |
Seung Min Ha |
| Abstract Scope |
This presentation explores the synthesis mechanism of yttrium titanate (Y2Ti2O7) pyrochlore via high-energy planetary ball milling of Y2O3 and TiO2 nanopowders. Y2Ti2O7 is a critical phase in oxide dispersion-strengthened (ODS) alloys due to its exceptional high-temperature stability and radiation tolerance. Traditional synthesis employs micron-scale precursors and prolonged calcination, leading to coarser particles and increased processing costs. Conversely, ball milling with nanopowders facilitates pre-pyrochlore phase formation in ambient through mechanical energy input, reducing both processing and calcination duration while producing nanoscale pyrochlore particles. The process facilitates scalable and cost-effective ODS alloy fabrication. To better understand the role of mechanical energy and its impact on the characteristics of milled materials, ball milling simulations using granular material simulation software, EDEM, were conducted. Comparative analysis of experimental and simulation results provides insight into the formation mechanisms and assists optimization of synthesis parameter and final Y2Ti2O7 microstructure. |
| Proceedings Inclusion? |
Planned: |