About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Nanostructured Materials in Extreme Environments
|
Presentation Title |
Strength, Plasticity and Stability of Dual Phase Ti-SiOC Ceramic Nanocomposites |
Author(s) |
Bingqiang Wei, Kaisheng Ming, Jian Wang |
On-Site Speaker (Planned) |
Bingqiang Wei |
Abstract Scope |
Ceramic is a promising structural material used in severe environment, such as high temperature and irradiation. By co-sputtering Ti and Si-O-C, we synthesized dual phase ceramic nanocomposites comprising nanocrystalline TiC and nanoscale amorphous ceramic SiOC. High temperature annealing remains the nanostructure although TiC nangrains slightly grow. In-situ SEM compression test show that the Ti-SiOC dual phase ceramic nanocomposites exhibit high strength (7 GPa) and good plasticity (10%). More importantly, the dual phase nanocomposite shows good irradiation resistance and more uniform plastic deformation after irradiation test. In this work, we proposed a strategy to develop high strength, large plasticity, good thermal stability and irradiation tolerance of ceramic via composition and microstructure engineering. |
Proceedings Inclusion? |
Planned: |
Keywords |
Ceramics, Mechanical Properties, Nuclear Materials |